Which factors affect the gravitational force between two objects?
distance and velocity
O mass and distance
mass and weight
O acceleration and weight

The angular velocity in rad/s are 4.7124 rad/s and the period of the motion is 1.333s.

a) Find angular velocity

Given

45 rpm that is rotations per min  converting it in to rad/s

we know that the angular displacement for one rotation is  2pi rad

45 rpm = 45*2pi/60

            = 4.7124 rad/s

So,the angular velocity is W = 4.7124 rad/s

b) We have relation between the angular velocity and time period is  

W = 2pi /T

T = 2pi/W

T = 2pi/4.7124 s

T = 1.333 s

Angular velocity is a physical quantity that describes the rate of change of the angular displacement of an object with respect to time. It is a vector quantity, and its direction is perpendicular to the plane in which the object is rotating. The magnitude of the angular velocity is given by the ratio of the angular displacement of the object to the time taken to complete the displacement. It is measured in radians per second (rad/s).

Angular velocity is an important concept in physics and is used in the study of rotational motion. It is used to calculate the centripetal force required to maintain circular motion and is also used to describe the motion of planets and other celestial bodies. In addition, angular velocity is used in engineering and mechanics to design and analyze rotating machines and devices.

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Answer:

Explanation:To find the change in kinetic energy, we subtract the initial energy from the final energy. This answer in positive because the car gains energy when it increases its velocity.

The energy of the flower pot is potential energy. The potential energy of the flower pot when it weighs 3 N in a height of 300 m is 900 J.

Potential energy of an object is the energy generated by virtue of its position whereas, kinetic energy is the energy generated by virtue of its motion.

Potential energy = mass x gravity x height

Given the weight of the flower pot is 3N. That is the force by gravity. Then displacement = 300 m.

Thus, P = 3 m × 300 m = 900 J.

If the flower pot is placed at a height of 10 m, the potential energy reduces as follows:

Potential energy = 3 x 10 m = 30 J.

Remaining energy is converted to the kinetic energy

ie. 900 J - 30 J = 870 J

Therefore, 870 J is transformed to kinetic energy.

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Your question is incomplete. But your complete question probably was:

A flower pot weighing 3 newtons is sitting on a windowsill 300 meters from the ground is the energy of the flower pot potential of kinetic? How many joules is this?

When the flower pot in problem 3 is only 10 meters from the ground, what is its potential energy?

How much of the total energy in problems 3 and 4 has been transformed to kinetic energy?

Answer: Warm

Explanation:

Microevolution refers to the evolution occurring at species-level involves three mechanisms that cause allelic frequencies to change in a population: gene flow, genetic drift, and natural selection.

Changes in the environment can affect population gene pools on both a small- and large-scale. Microevolution is the process of population-level changes in allele frequency. Some alterations take place at the species level or lower. There are hence variations in allele frequencies between or within groups.

Natural selection is one of the mechanisms of microevolution. It serves as an editor for allele frequency in populations to determine whether individuals with particular features have a higher or lower chance of surviving and procreating. Populations' gene pools can occasionally shift as a result of individuals leaving or entering the community. This transfer of alleles between populations is referred to as gene flow. Genes can "flow" from one area to another just like water does in a river.

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If a 1.5 kg ball has a momentum of 4.5 kg*m/s, the velocity of the ball is  3 m/s.

According to the question, the given quantity is,

Mass of the ball = 1.5 kg

The momentum of the ball =  4.5 kg. m/s

The momentum is defined as the product of the mass of the object and the velocity of the object, so p = mv.

p = momentum of an object

m = mass of an object

v = velocity of an object

According to question the given value outs in the formulae,

p= mv

4.50 = 1.50 × v

v = 4.50/ 1.50

v = 3 m/s.

Therefore, the velocity of the ball is  3 m/s.

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60 kg m/s is the answer because you gave it and I thought you are telling ruth also you are a big questioner and also you should check with your doctor and go out and go touch the grass.

The horizontal speed at which the water leaves the hole is[tex]4.09 ms^-1.[/tex]

Speed is the rate of change of the position of an object in a given direction. It is expressed as the distance traveled per unit of time, typically measured in meters per second (m/s). It is also commonly represented by the symbol ‘v’. Speed is a scalar quantity, meaning it has only magnitude, not direction.

The kinetic energy per unit volume at the point of the hole is equal to the density of the water multiplied by one-half the square of the velocity of the water leaving the hole.

Since these two values are constant across a horizontal streamline, we can set up the following equation:

[tex]ρgh = ρ(v^2/2)[/tex]

Solving for v, we get:

[tex]v = √(2gh)[/tex]

Plugging in the values for the height of the water above the hole (h = 0.4 m) and the acceleration due to gravity[tex](g = 9.81 ms^-2)[/tex], we get:

[tex]v = √(2*9.81*0.4) = 4.09 ms^-1[/tex]

Therefore, the horizontal speed at which the water leaves the hole is [tex]4.09 ms^-1.[/tex]

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Answer:

Explanation:   In a series circuit, the output current of the first resistor flows into the input of the second resistor; therefore, the current is the same in each resistor. In a parallel circuit, all of the resistor leads on one side of the resistors are connected together and all the leads on the other side are connected together.

The value of the resistance is approximately 0.047 kΩ.

What is Resistance?

Resistance is a measure of how much a material or device opposes the flow of electric current through it. Resistance is typically denoted by the letter R and is measured in Ohms (Ω) in the International System of Units (SI).

We can use the formula for the charging of a capacitor through a resistor:

V = V_0 * (1 - e^(-t/RC))

where V_0 is the initial voltage, V is the final voltage, t is the time, R is the resistance, and C is the capacitance.

In this case, the capacitor is charged 71 times per minute, so the time between charges is:

t = 60 s / 71

= 0.845 s

The capacitor is charged to 0.732 of its full voltage, so the fraction remaining is:

1 - 0.732 = 0.268

0.268 = e^(-0.845/RC)

Solving for RC, we get:

RC = -0.845 / ln(0.268) ≈ 1.42 s

Since we know the capacitance C is 33.0 nF, we can solve for the resistance R:

RC = R * C

= 1.42 s * 33.0 nF

= 0.0468 ≈ 0.047 kΩ

Therefore, the value of the resistance is approximately 0.047 kΩ.

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The final velocity of the truck after the collision is -11.25 m/s.

In this collision, the total momentum of the system before the collision is equal to the total momentum of the system after the collision, since momentum is conserved. The total momentum of the system before the collision can be found by adding up the momenta of the car and truck.

The momentum of the car is given by:

= mass of car * velocity of car

= 1500 kg * 20 m/s = 30000 kg m/s (east)

The momentum of the truck is given by:

= mass of truck * velocity of truck

= 2500 kg * -30 m/s

= -75000 kg m/s (west)

The total momentum of the system before the collision is given by:

30000 kg m/s + (-75000 kg m/s) = -45000 kg m/s

The total mass of the system is given by:

total mass = mass of car + mass of truck = 1500 kg + 2500 kg = 4000 kg

The final velocity of the system is given by:

final velocity = -45000 kg m/s / 4000 kg = -11.25 m/s

Since the final velocity is negative, it means that the system is moving west, which is the direction of the truck's initial velocity.

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In the physical activity pyramid, sedentary activities belong to Level D.

The Physical Activity Pyramid is a graphic representation of the different types of physical activities that are recommended for a healthy lifestyle.

The pyramid is divided into four levels, with the most important activities at the bottom and the least important at the top. The greatest and most significant activities for healthy everyday life are at the bottom and the least healthy activities at the top, which you should only perform occasionally.

Sedentary activities, which are activities that involve little or no physical movement, belong at the top of the pyramid, in Level D.

Level D is the smallest section of the pyramid, and it represents activities that should be limited in order to maintain good health.

Hence, option D is the correct choice.

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The formula for centripetal acceleration within the spacecraft is: ac =The outside radius of a spacecraft's doughnut-shaped body is 440 metres. The people are standing with thier feet on an outer rim and their heads .

Earth's crust is made of igneous, metamorphic, or sedimentary rocks, which range in composition from mud or clay to diamonds or coal. Igneous rocks, which are created as magma cools, are the most prevalent types of rocks in the crust. Igneous rocks like granite and basalt are abundant in the crust of the Earth.

The distance between any two places on a circle's circumference is in fact its radius. R or r are frequently used to denote it. Almost all calculations involving circles take this quantity into account. The radius of a circle can be used to determine a circle's circumference and surface area.

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The force exerted on the planet by the star is 3.52 x 10²² N.

Newton's law of gravitation is a fundamental law of physics that describes the force of gravitational attraction between two objects with mass. The law was first described by Sir Isaac Newton in 1687 and is one of the three laws that form the basis of classical mechanics.

To find the force exerted on the planet by the star, we can use Newton's law of gravitation, which states that the force between two objects with masses M1 and M2 and a distance r between their centers is given by:

F = G × M1 × M2 / r²

where G is the gravitational constant, which has a value of 6.67 x 10⁻¹¹ N*m²/kg².

We can first calculate the distance between the planet and the star by taking the difference between their positions:

r = √[(7 x 10¹¹ - (-3 x 10¹¹))² + (-5 x 10¹¹ - 8 x 10¹¹)² + 0²] = 1.38 x 10¹² m

Next, we can calculate the force exerted on the planet by the star:

F = G × M1 × M2 / r²

F = (6.67 x 10⁻¹¹ N*m²/kg²) × (6 x 10²⁴ kg) × (7 x 10³⁰kg) / (1.38 x 10¹² m²)

F = 3.52 x 10²²N.

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Answer:

The correct option is D. 4.3×10¹⁴ Hz

Explanation:

It is because the frequency and the wavelength are inversely proportional to each other.

So, c=f × lambda

And, frequency = velocity/wavelength

The frequency of the laser beam is D. 4.3×10¹⁴ Hz

One hertz (Hz) equals one cycle per second. A complete AC or voltage wave is called a cycle. The first half of the cycle is alternating. Period is the time it takes a waveform to complete a complete cycle. Frequency is essentially how often something repeats.

The rate at which the current changes direction in one second is called the frequency. Expressed in hertz (Hz), the international unit of measurement. One hertz equals one cycle per second. 

It is because the frequency and the wavelength are inversely proportional to each other.

So, c=f × lambda

And, frequency = velocity/wavelength

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Complete Question is:

A laser beam of wavelength 700 nanometers, traveling at a speed of 3.0 x 108 m/s,

is shot from outer space toward earth. What is the frequency of the laser beam?

[tex]A. 3.0 x 10^8 HzB. 700 x 10^-9 HzC. 210 HzD. 4.3 x 10^14 HzE. 233 x 10^-17 Hz[/tex]

Drag the phase slider left and right to move the planet into and out of transit mode. The normalized flux (the relative amount of starlight reaching an observer on Earth) when the planet is off the side (not transiting) is 0.990 while the normalized flux when the planet is transiting is 1.000. Thus, the correct option for this question is B.

Normalized flux may be characterized as a type of key methodology in spectral data mining. It is important for the efficiency and accuracy of the automatic processing of massive astronomical spectral data, information extraction, and sharing.

A transit occurs when a planet passes between a star and its observer. Transits within our solar system can be observed from Earth when Venus or Mercury travel. The frequency of the normalized flux when the planet is transiting is completely different from when the planet is off the side.

Therefore, the correct option for this question is B.

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Answer: 1.000,0.990 (correct)

Explanation:

Answer:

The smallest possible value of the principal quantum number (n) for an electron in an atom is n = 1. This is referred to as the first energy level or the "1s" orbital, and it corresponds to the lowest energy state of an electron in an atom.

Explanation:

In general, the value of n determines the size and energy of the electron orbital. The larger the value of n, the larger the size of the orbital and the higher the energy of the electron. The smallest possible value of n is therefore always 1, and it corresponds to the electron being in its lowest energy state.

a. The time it takes the ice to reach melting point is: t = 4180 J / 2000 J/s = 2.09 s

b. The time it takes to fully melt is: t = 33300 J / 2000 J/s = 16.65 s

c. The time it takes to reach boiling point after melting is: t = 418000 J / 2000 J/s = 209 s.

a. To find the time it takes for the ice to reach its melting point (0°C), we need to calculate the amount of heat required to raise the temperature of the ice block from -10°C to 0°C. The heat required can be calculated using the equation:

Q = m * C * ΔT

where m is the mass of the ice block (100 g)

C is the specific heat capacity of water (4.18 J/g°C)

and ΔT is the change in temperature (0°C - (-10°C) = 10°C).

So, Q = 100 g * 4.18 J/g°C * 10°C = 4180 J

Now, we can use the heat supplied by the stove to calculate the time it takes to raise the temperature of the ice block to 0°C:

t = Q / P

where P is the power supplied by the stove (2000 J/s).

So, t = 4180 J / 2000 J/s = 2.09 s

b. To find the time it takes for the ice to completely melt, we need to calculate the amount of heat required to turn the ice block into liquid water. The heat required can be calculated using the equation:

Q = m * Lf

where m is the mass of the ice block (100 g) and Lf is the latent heat of fusion of water (333 J/g).

So, Q = 100 g * 333 J/g = 33300 J

Now, we can use the heat supplied by the stove to calculate the time it takes to melt the ice block:

t = Q / P

where P is the power supplied by the stove (2000 J/s).

So, t = 33300 J / 2000 J/s = 16.65 s

c. To find the time it takes for the water to reach the boiling point (100°C), we need to calculate the amount of heat required to raise the temperature of the water from 0°C to 100°C. The heat required can be calculated using the equation:

Q = m * C * ΔT

where m is the mass of the water (100 g), C is the specific heat capacity of water (4.18 J/g°C), and ΔT is the change in temperature (100°C - 0°C = 100°C).

So, Q = 100 g * 4.18 J/g°C * 100°C = 418000 J

Now, we can use the heat supplied by the stove to calculate the time it takes to raise the temperature of the water to 100°C:

t = Q / P

where P is the power supplied by the stove (2000 J/s).

So, t = 418000 J / 2000 J/s = 209 s.

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The effort required to transport a unit charge from a reference point to a specified place in opposition to an electric field is known as the electric potential.

That implies that it is dependent on the charge. As a result, altering q's value will also alter the electric potential's value. In other words, W/value q's will change.

Electric potential is a scalar quantity that represents the amount of electric potential energy per unit charge at a given point in space. It is also known as voltage and is measured in volts (V). Electric potential is created by the presence of electric charges, which can be either positive or negative. A positive charge creates a region of higher electric potential, while a negative charge creates a region of lower electric potential. The movement of electric charges from high potential to low potential is what generates an electric current. Electric potential is a fundamental concept in electricity and plays a crucial role in the design and operation of electrical circuits, devices, and systems.

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Answer: B is right

Explanation:  Change in Momentum / Time Therefore, the force experienced by the ball is: Force = 1.52 kg·m/s / 0.0105 s Force = 144.76 N Answer: B. 144.76 N

The time is 5s.

In this problem, the observer is driving through town at

vi​ =16 m/s applies the brakes and begin decelerating with }a=−3.2 m/s²

We calculate the time for the vehicle to stop, and the speed after half the stopping time.

We use the velocity-time equation of the vehicle. When the vehicle stops, the velocity is

vf  ⟹ =vi +at

T = Vf−vi

= 0−16 m/s / −3.2 m/s²

= 5.0 s

What is time?

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However, typically, electrical codes require that buried secondary service conduits be installed at a minimum depth of 18 inches (45.7 cm) below the surface. In some cases, local codes may require a deeper depth, such as 24 inches (60.9 cm) or more, depending on factors such as soil type, climate, and intended use of the conduit.

It is also important to note that other factors, such as the type and size of conduit, the type of wiring used, and the intended electrical load, may also affect the required burial depth. Therefore, it is essential to consult with local building codes and a licensed electrician or electrical engineer to determine the appropriate depth for installing external underground secondary service conduits.

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In first case speed of fish will be ⅚ m/s.

In the second case the speed of fish ⅙ m/s

Given data :-

Mass of bigger fish ( m₁ ) = 5 kg

Mass of small fish ( m₂ ) = 1 kg.

Speed of large fish ( v₁ ) = 1 m/s

Mass of bigger fish after eating smaller ones = 5 + 1 = 6 kg.

Case - 1

Momentum of bigger fish before eating the smaller fish = m₁* v₁ = 5 * 1 = 5 kg.m/s

Momentum of bigger fish after eating the larger fish = ( m₁ + m₂)*v

v = speed of bigger fish immediately after lunch.

Using the conservation of momentum.

m₁* v₁ = ( m₁ + m₂)*v

5 = 6 * v

v =   m/s.

Case -2

Speed of small fish = 4 m/s

Momentum of bigger fish before lunch = 5 kg.m/s

Momentum of smaller fish before lunch = 4*1 = 4 kg.m/s

Net momentum before lunch = 5 - 4 = 1 kg.m/s

Momentum of bigger fish after eating the larger fish = 6 * V

Using the conservation of momentum.

1 = 6 * V

V =  m/s.

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The average speed of the blood is less than 0.95 m/s and the average speed is 0.884 m/s.

What is average speed?

Average speed is a measure of the rate of change in position of an object over a certain period of time. It is calculated by dividing the total distance traveled by the total time taken. In other words, it is the rate at which an object covers a given distance. Average speed is useful in determining the efficiency of a vehicle, or of a person, in covering a particular distance. For example, if a person drives for 2 hours and travels a total distance of 200 kilometers, the average speed of the body is 100 km/hr (200km / 2 hrs).

The average speed is,

[tex]V_{avg} = \frac{d_{1}+ d_{2} }{\frac{d_{1} }{V_{1} }+ \frac{d_{2} }{V_{2} } }[/tex]

        [tex]= \frac{0.50m + 0.50m}{\frac{0.50m}{1.2m/s}+\frac{0.50m}{0.70m/s} }[/tex]

       = 0.884 m/s

Due to the average speed is 0.884 m/s the average speed of the blood becomes less than 0.95 m/s.

Therefore, the average speed of the blood is less than 0.95 m/s and the average speed is 0.884 m/s.

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Answer:

A) Electric flux depends on the charge Q within and enclosed surface regardless of the shape of the surface - this concept is particularly useful for symmetric surfaces (centralized charge within a sphere) - field outside a uniform cylinder - whenever charges are symmetric with respect to the external environment.

B) Since the gravitational field has the same form as the electric field -           F = G M1 M2 / R^2 the same arguments apply to the gravitational field - Field lines passing out thru an enclosed surface are sources of field whereas field lines passing inward thru an enclosed surface are sinks for the field

If one's primary goal is to build strength and increase muscle mass, completing workout sets of high repetitions and low weight is correct that is the last option, as the aerobic activity would not increase the muscle.

Anaerobic activities should be prioritized because they force the muscles to work at high intensity for short periods of time; this type of training is typically done with heavy weights for fewer repetitions and sets and builds the muscles.

Hence, if one's primary goal is to build strength and increase muscle mass, completing workout sets of high repetitions and low weight is correct that is the last option, as the aerobic activity would not increase the muscle.

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The probability that the selection is made of 2 oatmeal cookies are 1/6.

As per given data in the question:

Oatmeal cookies - 6

Pecan Cookies - 5

Peanut butter cookies - 1

Total cookies in the jar - 12

The probability that the selection is of 2 oatmeal cookies, it is as follows:

P (oatmeal cookies) = 2/12 = 1/6

Probability deals with the likelihood of an event or phenomena occurring and is quantified as a number between 0 and 1 inclusive, where 0 indicates an impossible chance of occurrence and 1 denotes the certain probable outcome of an event.

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The uncertainty in height is, 0.5 mm.

The "half least count rule" states that the uncertainty in a measurement is equal to half of the smallest division on the measuring instrument. In this case, the ruler is marked in 1 mm increments, so the smallest division is 1 mm.

Using the half least count rule, the uncertainty in the measurement of the height is,

uncertainty = 1/2 * 1 mm = 0.5 mm

Therefore, the uncertainty in the measurement of the height is 0.5 mm. We can express the result as,

h = 121 ± 0.5 mm

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Refraction would cause the red light to bend at the air/glass boundary.

While the question is unclear, I assume that you are trying to know something about the refraction of the red light across the air/glass boundary. I will tell you something about refraction!

Refraction is a phenomenon of light where it changes direction when it enters a medium with a different refractive index. Refractive index is a measure of how much a medium bends light that passes through it. When light passes from a medium with a lower refractive index to a medium with a higher refractive index, it bends towards the normal (an imaginary line perpendicular to the surface at the point of incidence). On the other hand, when light passes from a medium with a higher refractive index to a medium with a lower refractive index, it bends away from the normal.

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Answer:

The forces acting on an asteroid include gravity from the Sun and other celestial bodies, radiation pressure from the Sun, and the pressure from interplanetary gas and dust. The gravitational forces will act to pull the asteroid towards the Sun, while the radiation pressure and interplanetary gas and dust will act to push it away. The net force acting on the asteroid will determine its path and velocity through the solar system.

Explanation: