ASAP PLEASE HELP!!!!

A 3.0 kg object swings back and forth as a simple pendulum with a small amplitude. The potential energy U of the object as a function of distance x from its equilibrium position is shown above. This particular object has a total energy E of 0.4 J.
b) What is the farthest the object moves along the x-axis in the positive direction? Explain your reasoning.

The temperature drops as you go higher into the atmosphere because you are moving away from the Earth's surface, where the majority of the planet's heat is generated.

As you move higher, the air pressure and density decrease, and there is less of the Earth's atmosphere to absorb and retain heat. This results in a lower overall temperature.

Additionally, the sun's rays become more intense at higher altitudes due to the lack of air molecules to scatter the sunlight. This can cause a heating effect, but it's usually not enough to offset the cooling effect caused by the decrease in atmospheric pressure.

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Answer:

3

Explanation:

When the projectile reaches a vertical velocity of zero, this is the maximum height of the projectile and then gravity will take over and accelerate the object downward. The horizontal displacement of the projectile is called the range of the projectile, and depends on the initial velocity of the object.

The spring stores 0.5 joules of elastic potential energy when stretched by 0.5 meters.

What is Potential Energy?

It is a form of energy that is stored in an object and has the potential to do work. The amount of potential energy depends on the position, shape, and orientation of the object. The most common types of potential energy are gravitational potential energy, elastic potential energy, and chemical potential energy.

The elastic potential energy stored by a spring is given by the formula:

Elastic potential energy = 1/2 * spring constant * (extension)^2

where the spring constant is measured in Newtons per meter (N/m), and the extension is measured in meters (m).

Given that the spring constant is 2 N/m and the extension is 0.5 m, we can plug these values into the formula:

Elastic potential energy = 1/2 * 2 N/m * (0.5 m)^2

= 0.5 J

Therefore, the spring stores 0.5 joules of elastic potential energy when stretched by 0.5 meters.

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The Velocity is 4270 m/s it is equal to product of frequency and wavelength.

Given: -

Frequency(f) = 700 Hz

Wavelength(λ) = 6.1m

velocity = f x λ

velocity = 700 x 6.1

velocity = 4270 m/s

Wavelength is a fundamental concept in physics, particularly in the study of waves, which includes electromagnetic radiation, light, and sound waves. It is defined as the distance between two successive points of the same phase, such as the crest or trough of a wave. This distance is usually measured in units of meters, and it is inversely proportional to the frequency of the wave.

In electromagnetic radiation, the wavelength is an important property that determines the type of radiation, such as radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays. Each type of radiation has a unique range of wavelengths that can be measured using instruments like a spectroscope or a radio antenna.

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Forensic scientists will investigate the fire by looking for clues as to what caused it and how it spread. They will collect evidence such as burn patterns and debris, and analyze the scene to determine the origin of the fire.

What is debris?

Debris is any loose material (solid or liquid) that is scattered or discarded, such as the remains of a wrecked or destroyed structure or object. Common examples of debris include rubble, broken glass, fallen tree branches, discarded plastic, scrap metal, and other discarded materials. Debris can also include materials that are the by-product of a process, such as the dust created by grinding or sawing. Debris can also be the result of natural disasters or human activities. Debris can be found in any environment and can cause environmental or safety hazards if left unchecked.

Therefore, Forensic scientists will investigate the fire by looking for clues as to what caused it and how it spread. They will collect evidence such as burn patterns and debris, and analyze the scene to determine the origin of the fire.

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Newton's law of motion

Three newton's law of motion:-

1. An object will not change its motion unless a force acts on it.

2. The force of an object is equal to its mass time its acceleration.

3. When two objects interact , they apply forces to each other of equal magnitude and opposite direction.

Newton's law of motion are three basic laws of classical mechanics that describes the relationship between the motion of an object and the forces acting on it.

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Answer:

The mass of the water in 1 kg (9.8 N = m (9.8 m/s/s)),

Thus the volume of the water is 1000 ml.

5 = (Mau + Mal)/(Vau + Aal)  

(Density = total mass to the total volume)

We know that:

19.2 = Mau/Vau and 2.5 = Mal/Val.  

We have to find the volume. Therefore,

5Val + 5Vau = Mau + Mal

5(Mal/2.5) + 5(Mau/19.2) = Mau + Mal

Mal = 0.74 Mau

5 kg = M(au) + (1/.74)M(au)

=> M(au) = 2.13 kg

Weight of gold = 20.8 N

hence the weight of the gold is 20.8 N

The best description of a direct current is "an electrical current that flows in one direction."

define electric current ?

Electric current is the movement of electric charges through a material, usually electrons. It is expressed in amperes (A) and is defined as the quantity of charge that passes through a point in a circuit over time. The conventional direction of current is taken as the positive charge carriers, which are in the opposite direction to the flow of electrons. Electric current is essential for the operation of numerous electrical devices and systems.

The best description of a direct current is "an electrical current that flows in one direction."

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Answer:

The correct sequence of events is:

A. Martin Cooper invented the first cell phone.

B. AT&T discussed the concept of a wireless phone.

C. Cell phone became the most common electronic device.

D. The FDA ruled that the health risks of cell phones were small.

Scientists use the movement of pendulums to provide evidence that the Earth is rotating the moon's position in space  in order to see the Earth spinning

The quickest observational evidence for Earth's orbital motion is the evident shift of nearby stars after six months, as the Earth moves from one side of Earth's its orbit to the other. Because of the large interval to even the nearest star, this parallax shift is to move small to be seen without a telescope.

Time subjection cameras show circular paths of star trails showing the Earth is rotating. The winds on the Earth curve evince the Earth is moving. proving the Earth is rotating.

So we can conclude that Pendulum's swing and swap direction prove the Earth is rotating.

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Newton's Law of Universal Gravitation says that every particle in the cosmos attracts every other particle with a force directly equal to the product of their masses and inversely proportional to the square of their distance.

To detect the gravitational force of attraction between any two objects, at least one of them on Earth must have an exceptionally massive mass. We cannot detect such forces because no object on Earth has an enormously big mass.

Newton's universal law of gravitation states that all objects attract each other with a force (i) away from directly proportional to the product of their masses and (ii) gravity proportional to the square of the distance between their centers. When considering objects on the surface of the Earth, the force is (iii) directly proportional to the product of the mass of the object and the (iv) acceleration due to (v) smaller at the Earth's surface. Since the Earth is (vi) larger than any object under consideration, the object is drawn (vii) towards the Earth.

The two items in a room do not move towards one other since the gravitational force of attraction between them is extremely minimal due to their modest masses. According to the universal law of gravity, every object exerts a gravitational force on every other thing. The gravitational force is directly proportional to the product of masses and inversely proportional to the square of their distances, according to the universal law of gravitation.

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Complete Question:

Fill in the blanks with the appropriate option:

Newton's universal law of gravitation states that all objects attract each other with a force (i) _____ proportional to the product of their masses and (ii) ____ proportional to the square of the distance between their centers. When considering objects on the surface of the Earth, the force is (iii) _____ proportional to the product of the mass of the object and the (iv) ____ due to (v) _____ at the Earth's surface. Since the Earth is (vi) ____ than any object under consideration, the object is drawn (vii) ______ the Earth.

Options:

acceleration, away from directly, directly, gravity, inversely, larger, smaller, some, toward.

The given vectors E and F are in Cartesian form. To find their magnitudes, we can use the formula:

|v| = √(vx² + vy²)

where vx and vy are the x and y components of the vector.

Cartesian algebra, also known as coordinate algebra or analytic geometry, is a branch of mathematics that deals with the use of algebraic equations to describe geometric shapes and their properties. It is named after the French philosopher and mathematician René Descartes, who developed the Cartesian coordinate system, which provides a way to describe the position of points in space using numbers.

A. Magnitude of E:

|E| = √((3i)² + (1j)²)

= √(9i² + 1j²)

= √(9 + 1)

= √(10)

Therefore, the magnitude of E is √(10).

B. Magnitude of F:

|F| = √((1i)² + (-3j)²)

= √(1 + 9)

=√(10)

Therefore, the magnitude of F is √(10).

C. Magnitude of G = E + F:

G = E + F = (3i + 1i) + (1j - 3j)

= 4i - 2j

|G| = √((4i)² + (-2j)²)

=√(16 + 4)

= √(20)

= 2√(5)

Therefore, the magnitude of G is 2√(5).

D. Magnitude of H = -E - 2F:

H = -E - 2F = (-3i - 2i) + (-1j + 6j)

= -5i + 5j

|H| = √(-5i)² + (5j)²)

= √(25 + 25)

= √(50)

= 5√(2)

Therefore, the magnitude of H is 5√(2).

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The correct option is C. Position of the head of the fetus of an extinct animal that gave birth on land or underwater.

In human prenatal development, fetal development starts offevolved from the 9th week after fertilization (or eleventh week gestational age) and maintains till birth.

Prenatal improvement is a continuum, with no clear defining characteristic distinguishing an embryo from a fetus. however, a fetus is characterized by the presence of all the most important body organs, though they will now not yet be completely advanced and practical and some not but situated in their very last anatomical vicinity. An unborn offspring develops and grows within the uterus (womb) of humans and different mammals. In human beings, the fetal duration begins at 9 weeks after fertilization of an egg by using sperm and ends at the time of delivery.

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Complete Question:

1. How can scientists determine whether an extinct animal gave birth on land or underwater?

a. Location of the hind limbs of the fetus

b. Position of the nostrils

c. Position of the head of the fetus

d. Location of the fossils

The acceleration is 2.7 m/s^2.

Acceleration is a measure of the rate at which an object changes its velocity. It is defined as the change in velocity per unit time and has units of meters per second squared (m/s^2). Acceleration can be positive (when an object is speeding up), negative (when it is slowing down), or zero (when its velocity is constant).

We can get the acceleration;

v^2 = u^2 - 2as

v = final velocity

u = initial velocity

a = acceleration

s = distance

Thus we have that;

v = 0 m/s thus;

u^2 = 2as

a = u^2/2s

a = (71.4)^2/2 * 939

a = 5097.96/1878

a = 2.7 m/s^2

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A wire should have the least resistance possible, because if there is more resistance in wires, there would be a lot of power loss when current flows through it.

Therefore, wires should have lowest resistance.

To determine the cation exchange capacity (CEC), calculate the milliequivalents of H, K, Mg, and Ca per 100g of soil (meq/100g soil) by using the following formulas: H, meq/100g soil = 8 (8.00 - buffer pH) K, meq/100g soil = lbs/acre extracted K ÷ 782. Mg, meq/100g soil = lbs/acre extracted Mg ÷ 240.

To begin, multiply the total CEC by the percentage for that ion to determine the cmolc of each cation on the exchange complex. It is 0.05 * 30 cmolc/kg for hydrogen. The cmolc/kg for each ion is then converted to mass of ion per kg by multiplying by the mass of 1 cmolc.
Soil testing laboratories calculate CEC by adding the calcium, magnesium, and potassium levels measured during the soil testing procedure to an estimate of exchangeable hydrogen derived from the buffer pH. In general, CEC values obtained through this summation method will be slightly lower than those obtained through direct measurementsdirect.

The percentage of CEC occupied by bases (Ca2+, Mg2+, K+, and Na+) is represented by base saturation (BS). The%BS increases as soil pH rises (Figure 5). Ca2+, Mg2+, and K+ availability increases as %BS increases. An 80% BS soil, for example, provides cations to plants more easily than a 40% BS soil.
Base saturation is the percentage of base cations (Ca2+, Mg2+, K+, and Na+) held onto soil exchange sites divided by total CEC.

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The x component of the center mass is 4.64 m.

The x component of the center mass is calculated by applying the following formula as shown below;

X_cm = (m1x1 + m2x2 + m3x3) / (m1 + m2 + m3),

where;

X_cm = (m1x1 + m2x2 + m3x3) / (m1 + m2 + m3)

X_cm = (7 x 0   + 1 x 5  + 10 x 6) / (7 + 1 + 6)

X_cm = 4.64 m

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The original velocity of the ball was -4.0 m/s, which means it was moving in the opposite direction of the final velocity (4.0 m/s).

How to find the original velocity of the ball?

The original velocity of the ball can be found using the principle of conservation of momentum. The principle of conservation of momentum states that the total momentum of a closed system remains constant if no external forces act upon it. In this case, the closed system is the ball and the pin. Before the collision, the total momentum of the system was zero (since the ball was at rest). After the collision, the momentum of the system is given by the ball's momentum plus the pin's momentum.

The momentum of an object is given by the product of its mass and velocity:

p = m * v

where:

p is the momentum of the object

m is the mass of the object

v is the velocity of the object

First, let's find the total momentum of the system after the collision:

p_total = p_ball + p_pin

p_total = (m_ball * v_ball) + (m_pin * v_pin)

p_total = (7.0 kg * v_ball) + (2.0 kg * 7.0 m/s)

Now, we'll use the principle of conservation of momentum to set the total momentum of the system before the collision equal to the total momentum of the system after the collision:

p_total_before = p_total_after

0 = p_total

0 = (7.0 kg * v_ball) + (2.0 kg * 7.0 m/s)

Solving for v_ball:

v_ball = (-2.0 kg * 7.0 m/s) / 7.0 kg

v_ball = -4.0 m/s

So, the original velocity of the ball was -4.0 m/s, which means it was moving in the opposite direction of the final velocity (4.0 m/s).

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Answer:

Explanation:

When the hammer hits the nail it transfers this energy to the nail in order to move it 1cm (0.01m). A transfer of energy is known as "work done" and work done = force x distance. So, force = work done / distance = 25 / 0.01 = 2500N Answer: Average force = 2500 Newtons.

At the neutral point, the distance between the Earth's center and the Moon's center is about 399,000 kilometers, or 3.989 x 10⁸ meters.

Planets, stars, and galaxies all move because it is one of the fundamental forces of the universe. According to Newton's law of gravitation, the distance between two objects and their masses determine the magnitude of the gravitational force

We can make use of the fact that the gravitational force between two objects is inversely proportional to the square of the distance between their centers and proportional to the product of their masses to calculate this distance. As a result, we can solve for the distance by setting the force of gravity that the Earth exerts on the object to be equal to the force of gravity that the Moon exerts on the object.

The masses of the Earth and the Moon, M_E and M_M, respectively, and the distance between their centers, d. The following factors determine the Earth's gravitational pull on the object:

F_E is equal to G × M_E × m / (d₂), where m is the mass of the object and G is the gravitational constant. The following factors determine the Moon's gravitational pull on the object:

F_M = G × M_M × m / ((R-d)²)

where R is the distance between the centers of the Earth and Moon

Setting F_E equal to F_M, we get:

G × M_E × m / (d²) = G × M_M × m / ((R-d)²)

Simplifying and solving for d, we get:

d = R × (M_E / (3 × M_M))¹/³

Values for the masses and the radius of the Earth-Moon system (R = 3.844 x 10⁸ meters), we get:

d = 3.989 x 10⁸ meters

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Answer:

Answer:

Hugo de Vries

Explanation:

In the history of evolutionary biology, Hugo dr Vries is known as a proponent of the mutation theory of evolution, in which new species are believed to arise by single mutational events.

Answer:

There are four main forces involved in the flight of an airplane: lift, weight, thrust, and drag.

Explanation:

1. Lift: Lift is the force that opposes the weight of an aircraft and keeps it in the air. It is generated by the wings as they move through the air and is affected by factors such as the shape of the wings, the angle of attack, and the speed of the aircraft.

2. Weight: Weight is the force of gravity acting on an aircraft and pulling it downward. It is proportional to the mass of the aircraft and the acceleration due to gravity.

3. Thrust: Thrust is the forward force generated by the engines of an aircraft. It must be greater than the drag force in order to maintain forward flight.

4. Drag: Drag is the aerodynamic force that opposes the forward motion of an aircraft. It is caused by the friction of the air moving past the surface of the aircraft and is affected by factors such as the speed of the aircraft, its shape, and the altitude.

These four forces are in a constant state of balance during flight, with the pilot adjusting the thrust and angle of attack to maintain a stable flight.

3.27 g's of force will be applied to the driver during the turn.

In science, the term "force" has a particular definition. At this time, it is appropriate to refer to a force as a push or a pull. There is no such thing as a power that something "contains" or "has in it." A force is exerted on one item by another.

We must employ the centripetal acceleration formula to resolve this issue:

a = v² / r

In this case, the velocity is 80 m/s and the radius is 200 meters, so:

a = (80 m/s)² / 200 m = 32 m/s²

To convert this to g's, we divide by the acceleration due to gravity:

32 m/s² / 9.8 m/s²/g = 3.27 g's (rounded to two decimal places)

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5.8N. is the correct answer .

What is Torque ?

In physics and engineering, "torque" is a measure of the twisting force that can cause an object to rotate around an axis or pivot point The magnitude of torque depends on both the force being applied and the distance between the axis of rotation and the point of application of the force. The direction of the torque is determined by the right-hand rule, with the thumb pointing in the direction of the applied force and the fingers curling in the direction of rotation. Torque is a key concept in the study of mechanics and is used in a wide range of applications, such as engines, motors, and machines.

τ1=+r1w1sin90=+r1m1g(counterclockwise rotation, positive sense)

τ2=+r2w2sin90°=r2m2g(counterclockwise rotation, positive sense)

τ=+rwsin90°=+rmg(gravitational torque)

τS=rSFSsinθS=0(because S=0cm)τ3=−r3w3sin90°=−r3m3g(clockwise rotation, negative sense)

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a) It takes the bicyclist 9.09 seconds to catch up to his friend.

b) The bicyclist has traveled 40.0 meters in 9.09 seconds to catch up to his friend.

c) The bicyclist is moving at a speed of 20.0 m/s when he catches up to his friend.

a) To find out how much time it takes for the bicyclist to catch up to his friend, we need to use the equation for motion with constant acceleration:

d = v_0 t + 0.5 a t^2

where d is the total distance traveled,

v_0 is the initial velocity (0 m/s in this case),

t is the time, and a is the acceleration (2.2 m/s^2).

Since the friend was already moving at a constant speed of 4.0 m/s when the bicyclist started pedaling, we know that the total distance d that the bicyclist has to travel to catch up is equal to 4.0 m/s * t + 0.5 * 2.2 m/s^2 * t^2.

Setting d equal to 4.0 m/s * t, we can solve for t:

4.0 m/s * t = 4.0 m/s * t + 0.5 * 2.2 m/s^2 * t^2

0.5 * 2.2 m/s^2 * t^2 = 0

t = sqrt(0 / (0.5 * 2.2 m/s^2)) = 0 s

Since the square root of zero is zero, the time t is also zero. This means that the bicyclist starts moving at the same time as the friend, so he needs to accelerate for the entire time to catch up.

Using the equation for motion with constant acceleration, we can find the time t it takes for the bicyclist to catch up:

d = v_0 t + 0.5 a t^2

d = 4.0 m/s * t

4.0 m/s * t = 0 m/s * t + 0.5 * 2.2 m/s^2 * t^2

4.0 m/s = 0.5 * 2.2 m/s^2 * t

t = 4.0 m/s / (0.5 * 2.2 m/s^2) = 9.09 s

So it takes the bicyclist 9.09 seconds to catch up to his friend.

b) To find out how far the bicyclist has traveled in this time, we can use the equation for motion with constant acceleration again:

d = v_0 t + 0.5 a t^2

d = 0 m/s * 9.09 s + 0.5 * 2.2 m/s^2 * 9.09 s^2

d = 40.0 m

So the bicyclist has traveled 40.0 meters in 9.09 seconds to catch up to his friend.

c) To find out the bicyclist's speed when he catches up, we can use the equation for velocity:

v = v_0 + a * t

v = 0 m/s + 2.2 m/s^2 * 9.09 s

v = 20.0 m/s

So the bicyclist is moving at a speed of 20.0 m/s when he catches up to his friend.

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Answer:

d. a is correct but b is wrong.

Explanation:

A car that is moving at a constant speed of 10m/s is experiencing a net force of zero, meaning that the sum of all forces acting on the car is equal to zero. This means that the forward force applied by the engine is equal in magnitude but opposite in direction to the force of friction acting on the car.

The force of friction acts to slow down the car, but it does not equal the forward force applied by the engine. Instead, it is determined by factors such as the weight of the car, the road surface, and the tire traction. If the forward force applied by the engine is greater than the force of friction, the car will accelerate. Conversely, if the force of friction is greater than the forward force applied by the engine, the car will decelerate.

Uniform distribution of charge a) [tex]-1.752 * 10^(-17) C/m[/tex] b) [tex]-4.038 * 10^(-16) C/m^2[/tex] c)  [tex]-6.346 * 10^(-16) C/m^2[/tex] d) [tex]-4.580 * 10^(-13) C/m^3[/tex]

(a) To find the linear charge density along the arc, we divide total charge (-275e) by arc length. Arc length is product of radius (3.85 cm) by the angle (in radians) arc subtends. Convert angle to radians:

[tex]37 degree = (37/360) * 2\pi radians = 0.6435 radians[/tex]

The length of the arc is then:

length = radius x angle = (3.85 cm) x (0.6435) ≈ 2.477 cm

The linear charge density is then:

linear charge density = charge in total / length magnitude = (-275e) / (2.477 cm)

e: elementary charge.

Using charge value:

linear charge density = [tex]-1.752 * 10^(-17) C/m[/tex]

Therefore, linear charge density along the arc is [tex]-1.752 * 10^(-17) C/m.[/tex]

(b) To find the surface charge density over the face of the circular disk, we need to divide the total charge (-275e) by area of disk. Area of face of disk is [tex]\pi[/tex] times radius squared

area =[tex]\pi * (1.85 cm)^2 = 10.78 cm^2[/tex]

The surface charge density is then:

surface charge density = total value of charge / area magnitude = [tex](-275e) / (10.78 cm^2)[/tex]

e: elementary charge.

Using charge value:

surface charge density = [tex]-4.038 * 10^(-16) C/m^2[/tex]

Surface charge density over the face of the circular disk is  [tex]-4.038 * 10^(-16) C/m^2[/tex].

(c) To get surface charge density over sphere surface, we divide total charge (-275e) by sphere surface area:

surface area = [tex]4\pi * (radius)^2[/tex]

The surface charge density:

surface charge density = total charge / surface area =[tex](-275e) / [4\pi * (1.85 cm)^2][/tex]

where e is the elementary charge.

Use charge value:

surface charge density ≈ [tex]-6.346 * 10^(-16) C/m^2[/tex]

Surface charge density over sphere is[tex]-6.346 * 10^(-16) C/m^2.[/tex]

(d) To get volume charge density in the sphere, we divide the total charge (-275e) by the volume of the sphere.

volume = [tex](4/3)\pi * (radius)^3[/tex]

The volume charge density is then:

volume charge density = total charge / volume = [tex](-275e) / [(4/3)\pi * (1.85 cm)^3][/tex]

e: elementary charge

Using value of the elementary charge:

volume charge density = [tex]-4.580 * 10^(-13) C/m^3[/tex]

Therefore, the volume charge density in the sphere is [tex]-4.580 * 10^(-13) C/m^3[/tex]

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A force can make a body at rest to move. The magnitude of force parallel to surface 1 is 5.04 N and the magnitude of the force parallel to surface 2 is 4.02 N.

The force can be defined as the quantity which is expressed as the product of mass (m) and acceleration (a). It is known as the push or pull on an object which produces acceleration in the body on which it acts.

The equation which is used to calculate the force is given as:

F = ma

a) F₁ = m₁ g sin40

= 0.800 kg × 9.81 m/s² × 0.64

= 5.04 N

b) F₂ = m₂ g sin55

= 0.500 kg × 9.81 m/s² × 0.82

= 4.02 N

Thus the magnitude of the force parallel to surface 1 is 5.04 N and the magnitude of the force parallel to surface 2 is 4.02 N.

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Answer:

the cube that will slowly cool is 2

The cube 2 will cool the most slowly.

The removal of heat from a system is known as cooling, and it usually leads to a decrease in temperature or a change in phase.

Here,

Three cubes of same material and density are given in the diagram. They all are said to be cooling starting from 80°C.

The three cubes have different volumes.

We know that, as the volume of the cube increases, the surface area of the cube decreases accordingly. That means, the volume of a cube is inversely proportional to its surface area.

V ∝ 1/A

According to the principle of cooling, the rate of cooling is directly proportional to the surface area. That means, the rate of cooling is higher for objects with higher surface area and slower for those with lower surface area.

So, the cube 2 is having the lowest volume among the three cubes and thus the highest surface area.

Therefore, it will take more time to cool down.

Hence,

The cube 2 will cool the most slowly.

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