It is possible for a smaller force with a longer time to be stronger than a larger force with a shorter time since impulse equals force x time.
Is it possible for a small force to produce a larger impulse?Yes, since impulse is defined as the product of the applied force and the applied time (J=Ft J = F t), a smaller force acting over a longer period of time may produce a larger impulse than a larger force acting over a shorter period of time. Force times time equals impulse.In comparison to a bigger force that acts over a much shorter period of time, a tiny force acting over a long period of time can easily produce more impulse (change in momentum). An object's momentum is a function of its mass times its velocity.An item can be propelled at the same speed by a tiny force applied over a long time as it can by a high force applied quickly.To learn more about larger impulse refer
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asasdcdcesasxxassxaasdddfdsas
Answer: That is not a question.
Explanation: It is a random jumble of letters. It also has no question mark.
a cylindrical resistor of radius 4.5 mm and length 2.0 cm is made of material that has a resistivity of
A cylindrical resistor of radius 4.5 mm and length 2.0 cm is made of material that has a resistivity then current density J is 1.12 × [tex]10^{5}[/tex]
Since P = i^2 r = (J^2) (A^2) R
J = 1/A [tex]\sqrt{P/R}[/tex]
Current density (J) = 1.12 × [tex]10^{5}[/tex]
A material's electrical resistivity, also known as specific electrical resistance or volume resistivity, is a key characteristic that quantifies how effectively it resists electric current. A substance that permits electric current to flow easily has a low resistance. The Greek letter is often used to signify resistivity (rho). Ohm-meters (m) are the metric unit for electrical resistivity. For instance, the resistivity of a material is 1 m if it has sheet contacts on two of its opposing faces and has a 1 resistance between them.
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A stater glides off a frozen pond onto a patch of ground at a speed of 3.1 m/S. Here she is stowed at a constant rate of 3.00 m/*, How fast is the skater moving when she has slid 0.42 m across the ground?
A stater glides off a frozen pond onto a patch of ground at a speed of 3.1 m/S. Here she is stowed at a constant rate of 3.00 m/s . The skater will move at a speed of v = 1.01 m/s , when she has slid 0.42 m across the ground
The branch of physics that defines motion with respect to space and time, ignoring the cause of that motion, is known as kinematics. Kinematics equations are a set of equations that can derive an unknown aspect of a body’s motion if the other aspects are provided.
using kinematics equation
[tex]v^{2} - u^{2} = 2as[/tex]
[tex]v^{2} = u^{2}[/tex] + 2as
= [tex](3.1)^{2}[/tex] - 2 * 3 * 0.42
v = 1.01 m/s
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why does sound travel more quickly through a solid than through a liquid
Explanation:
Sound travels more quickly through solids than through liquids and gases because the molecules of a solid are closer together and, therefore, can transmit the vibrations faster. Sound travels most slowly through gases because the molecules of a gas are farthest apart.
a long wire, parallel to the ground, carries a current toward the east in a magnetic field that is directed due south. what is the direction of the magnetic force on the wire?
A network of metal wires that allows the simultaneous transport of several bits of data Serial cables, which transport data one bit at a time, have mostly replaced parallel wires.
How do parallel wires work?In this tutorial's direct current circuit, there are two parallel straight wires (in red). These wires can be set up in a parallel circuit or in a series circuit, as they are when this tutorial first begins. In a series circuit configuration, a connecting wire joins parallel wires to form a circuit that directs current along a single path. Because of this, the current moves in one direction down one wire and the opposite direction down another wire.By selecting the radio button, you can convert this to a parallel circuit.In a parallel circuit, when the current reaches the parallel wires, it splits in two, with some current flowing down one wire and the other.The direction of travel for the current down both wires is the same.Observe how the parallel wires function in each of these configurations.
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what is the average rotational latency of a hard drive rotating at 7,200 rpm or 120 revolutions per second?
The average rotational latency of a hard drive rotating at 7,200 rpm or 120 revolutions per second is 4.16 ms.
What is the average rotational latency?Half as long as it takes the disk to complete a full spin, that is how long the rotational delay is. Rotational speed is the rate at which an object revolves or rotates. It is determined by how many rotations an item completes in a given amount of time, unlike linear speed. Rotational speed is calculated as rotations per unit of time, whereas linear speed is calculated as distance per unit of time.Rotational delay is at its worst at 7200 RPM and is typically half that at 8.33 milliseconds (4.17 ms).Rotational lag on average: 4.16 msTypical search time: 8 msMax seek: 10.5 msTo learn more about rotational latency refer to:
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A worker lifts a 10 kilogram block a vertical height of 2 meters. The work he does on the block is:
Answer:
Work = 196 Joules (1 kg*m^2/sec^2 is 1 Joule)
Explanation:
Work, W, is defined as force. F, times displacement, d.
W = Force*displacement
In the worker's case, the force he/she is struggling against is Earth's gravity's acceleration, g, (9.8 m/sec^2) times the mass, m.
Force = mg
Force = (10kg)*(9.8 m/sec^2) = 98 kg*m/sec^2
Use this force in the work calculation.
W = Force*displacement
The displacement is 2 meters.
Work = (98 kg*m/sec^2)*(2 meters) = 196 kg*m^2/sec^2
1 kg*m^2/sec^2 is 1 Joule
Work = 196 Joules
Refraction of a light ray may be defined as
A. bouncing off the boundary
B. passing through the boundary
C. maintaining speed after a boundary
D. changing direction while crossing a boundary
Answer:
Explanation:
Refraction of a light ray may be defined as:
D. changing direction while crossing a boundary
a car is moving at a constant tangential speed of 50.0 m/s and takes one lap around a circular track in a time of 73.5 s. what is the magnitude of the acceleration of the car?
The acceleration of the car moving at the speed of 50 m/s and
completing one lap in the time of 73.5 seconds is 0.68 m/s²
The speed of the car = 50 m/s
The time taken to complete one lap = 73.5 s
The acceleration of the car can be found using the formula,
a = s / t
where a is the acceleration of the car
s is the speed of the car
t is the time taken to complete
Let us substitute the known values in the above equation, we get
a = 50 / 73.5
= 0.68 m/s²
Therefore, the acceleration of the car is 0.68 m/s²
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in its daily prowl of the neighborhood, a cat makes a dis- placement of 120 m due north, followed by a 72-m displace- ment due west. (a) find the magnitude and direction of the dis- placement required for the cat to return home. (b) if, instead, the cat had first prowled 72 m west and then 120 m north, how would this affect the displacement needed to bring it home? explain.
To find a solution, we first know about magnitude and displacement.
What is magnitude?
Magnitude typically refers to size or distance. By comparing the size and movement speed of the object, we can relate magnitude to movement. The object's or quantity's size determines its magnitude.
What is displacement?
A one-dimensional quantity called displacement (symbolized as d or s), also known as length or distance, represents the separation between two specified points. The meter is the SI's (International System of Units) accepted displacement unit.
Given that the beginning displacement is 120 meters to the north, the ultimate displacement is 72 meters to the west.
R = (A2+B2)1/2 is the magnitude of the resulting vector A+B.
The angle formed with the west direction is = tan-1(A /B) when = 139.9428m.
(Southeast) = 59.03624 degrees (B) Instead, if the cat had first wandered 120 m north, then 72 m west.
Then the magnitude of the resulting quantity is the same as R, but the angle is different because of = tan-1(72m / 120m) = 30.96375degrees.
Therefore the magnitude is 139.9428m.
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which method would be most helpful in locating the center of gravity of an object? which method would be most helpful in locating the center of gravity of an object? applying a known torque to the object hanging the object from a string spinning the object like a top carefully weighing the object
Plumb-line method By hanging an item from several places and marking the vertical line with a plumb line, you can empirically determine where an object's center of gravity is located.
The object's center of gravity is where two or more vertical lines converge at a point on the plumb line.
A plumb line is a string that hangs perpendicular to the earth's surface with a large weight attached to it. The center of mass of the object will be traversed by a line drawn parallel to the plumb line. Draw a line along the second plumb line after repeating the process with a different attachment point.
Rub a rope through colored chalk to create a plumb line, then tack it to the top of the wall. Then secure the loose end with a plumb bob (or other tiny weight). Pull the cord taut while maintaining the bob's natural position of falling.
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a force of 50 n is applied tangentially to the rim of a solid disk of radius 0.12 m. the disk rotates about an axis through its center and perpendicular to its face with a constant angular acceleration of 110 rad/s2. determine the mass of the disk.
Since (r ) equal to A plus Br, the mass per unit area of a circular disc with radius a depends on the distance r from its center.
Determine the mass of the disk ?Mass is obtained by multiplying density by volume.The volume of a disk is equal to its area times thickness, or r2 times thickness.Simply multiply this volume by the disk density, and there you have it!a disk's bulk.
F= 50 N
r= 0.12 m
α = 110 rad/s²
The moment of inertia of disk about center
I= 0.5 m r²
m=mass , r=radius
The moment of inertia of disk about O
I' = 0.5 m r²+ m r²
I'=1.5 m r²
The torque produce by force F about O
τ = F x 2r
τ =2 F r
= 2 x 50 x 0.12 N.m
τ =12 N.m
We know that
τ = I' α
12 = 1.5 x m x 0.12² x 110
m=2.37 Kg
Mass of the disk m= 2.377 kg
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According to the vespr model, the best arrangement of a given number of electron domains is _______.
According to the VESPR model, the best arrangement of a given number of electron domains is the one that reduces the repulsion among them.
The VESPR model is also known as VSEPR theory or the valence shell electron pair repulsion theory.
This model provides the 3D structure of the arrangement of electron in an atom.
According to this model, the valence shell electron are involved in the chemical bonding process.
The geometric picture of molecule shows that only valence shell electrons take part in bonding in an ion or a molecule.
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a 12-kg hammer strikes a nail at a velocity of 7.5 m/s and comes to rest in a time interval of 8.0 ms. (a) what is the impulse given to the nail? (b) what is the average force acting on the nail?
The impulse of given nail is -90 kg-m/s .
The average force acting on nail is 11250 N .
What is impulse and force?Considering that,
The hammer weighs 12 kg.
The hammer's initial speed when that strikes a nail is u = 7.5 m/s.
At last, it comes to rest when v = 0.
The time is t = 8ms = 0.008 s.
Let J be the impulse applied to the nail in (a). An item receives an impulse equal to a change within the momentum. It comes from:
J = m(v - u)
v = 0
J = -12kg x 7.5 m/s
J = -90 kg-m/s
The impulse is causing motion to move in the opposite direction.
The following provides another definition of impulse:
J = F X t
The average force pushing against the nail is F.
F = J / t
F = 90 kg-m/s / 0.008 s
F = 11250 N .
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a 450-loop circular armature coil with a diameter of 10.6 cmcm rotates at 110 rev/srev/s in a uniform magnetic field of strength 0.32 tt . part a what is the rms voltage output of the generator?
The magnitude of the RMS voltage output of the generator is 139.39 V.
The output voltage of a rotating circular coil is given by,
E = NBAW
Where,
E is the output voltage,
N is the number of the turns in the coil which is 450 in this case,
B is the magnitude of the magnetic field which is 0.32 tesla in this case,
A is the area of the circular ring,
W is the angular velocity of the coil which is 110 revolution/second.
A = πr²
A = π(0.053)²
A = 0.0088 m².
Putting values,
E = 450(0.32)(0.0088)(110)
E = 139.39 V.
So, the magnitude of the output voltage is 139.39 V.
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which layer of the atmosphere is the hottest due to the large amount of kinetic energy of it's molecules
The hottest part of the atmosphere is called the thermosphere.
This region is the hottest because UV rays cause ionization, and because solar radiation is absorbed here, temperature rises with altitude.
What are the atmospheric layers?The troposphere, stratosphere, mesosphere, and thermosphere are the four principal layers of the atmosphere. Depending on how it is defined, the atmosphere's thickness ranges from 100 to 10,000 kilometers.The troposphere is generally warm at the base and cools as it rises. At its base, the stratosphere is quite cool, but as you ascend, it becomes hotter.Ozone generation generates heat, which causes temperatures to rise from an average of -60°F (-51°C) at the tropopause to a maximum of roughly 5°F (-15°C) at the top of the stratosphere. Because of the temperature gradient with height, warmer air is found above cooler air.To learn more about atmospheric layers refer to:
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two charges interact with 100 newtons attractive force initially. when their distance is increased by four times, what will be the force between them?
The force between the two charges will be 25k N m.
This can be determined by using Coulomb's Law, which is a formula relating the forces between two charges (q 1 and q 2 ) at a distance r apart. The formula states that their force is equal to kq1q2/r2, where k is a constant (9 × 109 N m2/C2). If we plug in the values of 100 newtons for each charge and 4 meters for their distance, we get:
F = 100k/(4 × 109) = 25k N m
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n a mass spectrometer, chlorine ions of mass 35u and charge 5e are emitted from a source and accelerated through a potential difference of 250 kv. they then enter a region with a magnetic field, which is perpendicular to their original direction of motion. the chlorine ions exit the spectrometer after being bent along a path with a radius of curvature 3.5 m. what is the value of the magnetic field (u
Magnetic field will be equal to 0.269 T
What is magnetic field?A magnetic field, a vector field that defines the magnetic effect on moving electric charges, electric currents, and magnetic materials. A moving charge within a magnetic field experiences a force perpendicular to its velocity and to the magnetic field.
Given,
Mass of chlorine ion is 35u
We know that 1 u = 1.66 × 10⁻²⁷kg
Radius of circular path (r) = 3.5 m
Mass of chlorine ion = 35 × 1.66 × 10⁻²⁷
= 58.1 × 10⁻²⁷kg
Charge (q) = 1.6 × 10⁻¹⁹C
Potential difference (V) = 250 Kv
According to conservation of energy:
¹/₂ mv² = qV
¹/₂ × 58.1 × 10⁻²⁷ × v² = 1.6 × 10⁻¹⁹ × 25 × 10⁴
v = 2.6 × 10⁶ m/s
As we know,
r = mV/qB
B = mV/qr
B = 58.1 × 10⁻²⁷× 25 × 10⁴/1.6 × 10⁻¹⁹× 3.5
B = 0.269 T
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A string is wrapped tightly around a fixed reel that has a rotational inertia of 0. 0352 kg · m2 and a radius of 12. 5 cm. An object of mass 423 g is attached to the free end of the string. With the string vertical and taut, the object is gently released so it can descend under the influence of gravity. As the object descends, the string unwinds and causes the reel to rotate without friction at its axle. What is the speed of the object after it has fallen 1. 25 m?.
The speed of the object if a string is wrapped tightly around a fixed reel that has a rotational inertia of 0.0352 kg · m² and a radius of 12.5 cm after it has fallen 1.25 m is 1.97 m /s
∑ Fy = m ay
mg - T = ma
m = 423 g = 0.423 kg
g = 9.8 m / s²
( 0.423 * 9.8 ) - T = 0.423 a
4.15 - T = 0.423 a → ( 1 )
τ = F * ⊥d
τ = I α
α = a / r
τ = Torque
F = Force
⊥d = Perpendicular distance
I = Moment of inertia
α = Angular acceleration
a = Tangential acceleration
r = Radius
I = 0.0352 kg m²
r = 12.5 cm = 0.125 m
F * ⊥d = I α
T * r = I a / r
T = I a / r²
T = 0.0352 a / 0.125²
T = 2.26 a → ( 2 )
( 1 ) becomes,
4.15 - 2.26 a = 0.423 a
2.683 a = 4.15
a = 1.55 m / s²
v² = u² + 2 a s
v = Final velocity
u = Initial velocity
s = Distance
u = 0
s = 1.25 m
v² = 0 + ( 2 * 1.55 * 1.25 )
v² = 3.875
v = 1.97 m / s
Therefore, the speed of the object after it has fallen 1.25 m is 1.97 m / s
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pulleys and inclined planes quick check1 of 41 of 4 itemsquestionuse the picture to answer the question.an illustration shows a man lifting a box using a pulley.what is accomplished by this simple pulley?
Pulleys are strong, efficient devices. They have the power to shift a force's direction, which makes it much simpler for us to move objects.
what is pulley?For the transmission of energy and motion, pulleys can be used alone or in conjunction. Sheaves are the name for rimmed pulleys with grooves. In a belt drive, pulleys are attached to shafts at their axes, and power is transferred between the shafts using endless belts that pass over the pulleys.
The four different types of pulleys are complex, compound, moveable, and fixed. A fixed and movable pulley make up compound pulleys.
The main benefit of using pulleys is that it requires less effort than simply lifting weights normally. To put it another way, it lessens the actual force needed to lift heavy objects. Additionally, the force's direction is altered.
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What percent of the world’s earthquakes occur around the pacific rim/ring of fire?.
The percent of the world’s earthquakes occurring around the pacific rim/ring of fire will be 90%.
The Ring of Fire is home to more than 450 volcanoes or 75% of all volcanoes on Earth. The majority of earthquakes that occur on Earth, including the most intense and spectacular seismic occurrences, ever recorded, happen along its course. The region of earthquakes encircling the Pacific Ocean is known as the "Ring of Fire," also known as the Circum-Pacific belt; it is where 90% of all earthquakes on earth take place.
The extensive movement of tectonic plates in the region is the reason for the high frequency of earthquakes and volcanoes in the Ring of Fire. Plates collide along convergent boundaries known as subduction zones around a large portion of the Ring of Fire. In other words, the plate above pushes down or subducts, the plate below.
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the electric field between two charged parallel plates separated by a distance of 1.8 cm has a uniform value of 2.4 x 104 n/c. find the potential difference between the plates. how much kinetic energy would be gained by a deuteron in accelerating from the positive plate to the negative plate? (a deuteron is a particle with one proton and one neutron.)
The electric field is radially outwards from positive charge and radially in towards negative point charge.
What is an electric field, exactly?Any sort of charge causes an electric field to be associated to a location in space. The strength and direction of the electric field are expressed by the value of E, also referred to as the electric field strength, electric field intensity, or simply the electric field. The SI unit for the electrical field is volts per meter (V/m). This unit is equivalent to the Newtons per coulomb. Both Newton, which represents for force, and Coulomb, which stands for charge, are the ancestors of these units. These two are sometimes referred to as the sources of the field since they produce the magnetic field with moving charges (currents) and the electric field with stationary charges, respectively.
AV = EAX = (2.4*10N.X0.018) V/M
off = 432
N2V jk N.mm
1/2=12
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explain the differences between linear speed and angular speed when describing motion along a circular path.
The difference between linear speed and angular speed is linear speed calculates the distance to time whereas angular speed calculates the angle to time.
The difference between the linear speed and the angular speed is that linear speed is just a measurement determined by calculating the distance of an arc versus time taken, and angular velocity is also a measurement determined by calculating the angle of an arc versus time taken.
The formula of the linear speed is
s = d / t
where s is the speed
d is the distance
t is the time taken
The formula of the angular speed is
ω = θ / t
where ω is the angular speed
θ is the angular rotation
t is the time taken.
The relation between the linear speed and angular speed in a uniform circular motion is
s = rω
where s is the linear speed
r is the radius
ω is the angular speed.
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a parallel-plate capacitor in air has circular plates of radius 2.7 cm separated by 1.1 mm. charge is flowing onto the upper plate and off the lower plate at a rate of 7 a. find the time rate of change of the electric field between the plates.
The time rate of change of the electric field between the
is 1.43x [tex]10^{14}[/tex]N C [tex]s^{1[/tex] .
The radius is 2.7 cm = 0.027m
The distance of separation is 1.1 mm = 0.0011m
The current is 7A
Generally the electric field generated is mathematically represented as
E = [tex]\frac{q}{\pi r^{2}E_{0} }[/tex]
=
Where [tex]E_{O}[/tex] is the permittivity of free space with a value
[tex]E_{0} = 8.85\times 10^{-12} m^{-3} kg^{-1} s^{4} A^{2}[/tex]
So the time rate of change of the electric field between the plates is mathematically represented as
[tex]\frac{E}{t} = \frac{q}{t} \times \frac{1}{\pi r^{2} E_{o} }[/tex]
[tex]\frac{q}{t} = I[/tex]
[tex]\frac{E}{t} = \Ifra \times \frac{I}{\pi r^{2} E_{o} }[/tex]
substituting values
[tex]\frac{E}{t} = \Ifra \times \frac{7}{3.142 (0.027)^{2} 8.85\times 10^{-12} }[/tex]
= 1.43x [tex]10^{14}[/tex]N C [tex]s^{1[/tex]
What is charge?"Electric charge is a property of a subatomic particle that causes a force when placed in an electric and magnetic field." There are two types of electrical charges: positive and negative, which are usually carried by the charge-carrying protons and electrons. Examples of charge types are subatomic particles or particles of matter: Protons are positively charged. Electrons are negatively charged. neutrons have zero charge. Electric charge is a scalar quantity. In addition to magnitude and direction, a quantity called a vector should also obey the laws of vector addition, such as the triangular law of vector addition and the line law of vector addition; only then is the quantity said to be a vector quantity.
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Vehicle tail lights must be visible from _____ feet to the rear in normal sunlight.
Vehicle tail lights must be visible from 500 feet to the rear in normal sunlight.
On most of the vehicles, the tail lights are red and the brake lights are more luminous red. Tail lights also include the backup lights which are white in color. The idea of "red signifies stop" has always been connected to danger. Red can be an indication of dangerous plants and insects in the natural world.
The wavelength of red light is the highest (620-750 nm) so it can travel the largest distance and can be visible from a distance of 500 Feet.
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a 25-ft long crane supported at its lower end by a pin is elevated by a horizontal cable as shown in the figure. a 250-lb load is suspended from the outer end of the crane. the center of gravity of the crane is 10 ft from the pin, and the crane weighs 200 lb. what is the tension in the horizontal cable?
By dividing the applied force by the sine of the angle and multiplying the result by the horizontal component of the tension force.
Explain about the tension force?Any physical object that is in contact with another one can apply forces to that object. Depending on the types of objects in contact, we name these contact forces differently. We refer to the force as tension if a rope, string, chain, or cable is one of the objects applying the force.
The process of pulling water from a well is one of the clearest examples of tension forces. It makes use of a rope that is attached to the pulley with one end and the bucket handle with the other. When this rope is stretched by an external force, tension is produced.
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what sound characteristics can be compared between the two ears to locate the source of a sound? group of answer choices sound shadows and pitch loudness and phase frequency and loudness we cannot localize sounds well
Intensity and time interval of a sound can be compared between the two ears to locate the source of a sound.
Intensity of the sound is defined as the proportion of energy that flows per unit time through a unit area perpendicular to the direction of motion of such sound waves.
The time it takes for a sound wave to complete one cycle is called its time interval or the time period.
The time period is inversely proportional to the frequency and is given by: Time period = 1/FrequencyA person's loudness perception is affected by the amount of sound they hear.
The volume or loudness of a sound is determined by its intensity, which itself is governed by its frequency. Sounds are measured by their intensity or the energy they have in them. Intensity is measured in decibels (dB) and the volume of sounds is determined by their intensity. The intensity of sound is determined by two factors: the size of the sound waves and the distance from their source.and the time taken by the sound wave to reach the ear is dependent on the distance between the source and the ear.Therefore intensity and time interval can be considered as the sound characteristics to compare between the two ears to locate the source of a sound.
The question is incomplete, the complete question is:
'What sound characteristics can be compared between the two ears to locate the source of the sound?
a. sound shadows and frequency
b. frequency and amplitude
c. intensity and time of arrival
d. timbre and rhythm'
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what is the upper block's acceleration if the coefficient of kinetic friction between the block and the table is 0.13?
The answer is 2.416 m/s^2.
Solution:
friction force on the upper block = umg
= 0.13*2*9.81
= 2.5506 N
so writing the equation of motion for the upper block
T - f = ma
or T-2.5506 = 2a
writing the equation of motion for the lower block
mg-T=ma
or 9.8-T=a
Hence, we get a = 2.416 m/s^2.
Since the top block slides to the right, the frictional force acting on it acts to the left. His reaction wall acts on the forward-acting lower block. The frictional force absorbs x mechanical energy from the upper block, but transfers only y mechanical energy to the lower block. To find the acceleration of the body in terms of angle and coefficient of friction.
A material modulus value of 1 means that the friction force is equal to the normal force. This means that the force required to move an object is equal to its weight. An object may have a friction value greater than 1. There are two types of friction coefficients: static friction coefficient and dynamic friction coefficient. The former is sometimes called the initial friction coefficient and the latter is sometimes called the dynamic or sliding friction coefficient.
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Waves that move the medium at right angles to the direction in which the waves travel.
Transverse waves are waves that move the medium at right angles to the direction in which the waves travel.
Types of Waves in PhysicsWaves are defined to be oscillations or vibrations about a fixed point, accompanied by the transfer of energy travelling from one medium to another. There are mainly two types of mechanical waves, namely longitudinal waves and transverse waves.
Longitudinal waves are waves in which the movement of the particles in the medium is in the same dimension as the wave’s movement direction. Examples of longitudinal waves include compression wave and sound waves. Transverse waves are waves in which the medium moves at an angle to the wave’s direction. Examples include stringed instruments and light waves.
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calculate the force (in n) needed to bring a 1050 kg car to rest from a speed of 85.0 km/h in a distance of 115 m (a fairly typical distance for a non-panic stop).
The force needed to bring a car to rest from a speed is 2,541 Newton.
The formula in non-uniform motion
v = u + at
v² = u² + 2ad
[tex]d = u \times t + \frac{1}{2} \times a \times t^2[/tex]
u = initial speed (m/s) = 0 m/sv = final speed (m/s) = 85.0 km/ht = time (s)d = displacement (m) = 115 ma = acceleration (m/s)Because the final speed is km/h, we must convert it into m/s
v = 85.0 km/h
v = [tex]85.0 \times \frac{1 \: km}{1 \: hour}[/tex]
v = [tex]85.0 \times \frac{1,000 \: m}{3,600 \: s}[/tex]
v = [tex]\frac{850}{36}[/tex]
v = 23.6 m/s
Calculate the acceleration
v² = u² + 2ad
23.6² = 0² + (2×a×15)
556.96 = 230a
[tex]a = \frac{556.96}{230}[/tex]
a = 2.42 m/s
Formula to find the force F=ma
m = mass (kg) = 1,050 kga = acceleration(m/s)F = force (Newton)F = ma
F = 1,050×2.42
F = 2541 Newton
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