An object under the influence of gravity, and gravity only, can be described by what type of motion?

Q: Calculate the force required to accelerate an electron from a speed of 100 m/s to 100 km/s in the…

A: Given: Mass of electron, m=9.1×10-31 kg Initial velocity of electron, vi=100 m/s Final velocity of…

Q: . A planet moves fastest during its orbit around the Sun when... a. it is closest to the Sun and…

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Q: What is the direction of the gravitational acceleration of an object that is freely moving upwar

A: The gravitational force between the Earth and the object is attractive force. So the gravitational…

Q: gravitational force

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Q: The force of gravity from the earth on the sun acts

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Q: The distance between two objects is increased by 3 times. The gravitational force between the…

A: The distance between 2 objects is made 3 times .  To find = gravitational force between the 2…

Q: A feather is dropped from rest on the surface of an unknown planet without an atmosphere from a…

A: Distance to be travelled is h = 1.60 m Initial speed is u = 0 m/s Acceleration is a = 1.34 m/s2…

Q: You are to solve this problem using only the tools of dimensional analysis. You are not expected to…

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Q: Which one of the following statements concerning this situation is true?

A: Given data: Current i=0A, Applied force F=21N

Q: What is difference between Uniform and Non-Uniform motion?

A: Uniform Non-Uniform     The motion is similar to the actual speed of the object. The motion is…

Q: The distance between two objects is 2 m. If the distance is changed to 1m, the gravitational force…

A: We know that gravitational force is given by  F= Gm1m2r2

Q: Walking on horizontal slippery ice can be much more tiring than walking on ordinary pavement. Why?

A: Introduction: A frictional force always acts opposite to the direction of motion if the surface has…

Q: When a plane flies with the wind, it can travel 2160 miles in 3 hours. When the plane flies in the…

A: Given data: Distance covered when flying with the wind is, d1=2160 miles. Time taken is, t1=3 hours.…

Q: How is the gravitational force between two point masses affected when they are dipped in the water…

A: The gravitational force is unaffected by the medium, and it remains the same between the point…

Q: According to the principle of relativity, observers in different reference frames will observe the…

A: The principle of relativity states that laws of physics are same for all the observers in the case…

Q: The force of gravity between two objects is 50 N. Mass 1 decreases by a factor of 1/5. The new force…

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Q: A massive object is placed on a certain distance from a second massive object. What will happen to…

A: SOlution: Given that two massive objects are placed at certain distance. determine the effect of the…

Q: The force of gravity from the sun on the earth acts left right up down

A: Given The image of the planetary motion of the earth around the sun.

Q: If there is no gravity on earth then what happens?

A: The gravity is the reason, the earth is holding up together. Without the force of gravity to hold it…

Q: When the distance between you and the center of the Earth triples, the force of gravity of the Earth…

A: The force of gravitation is given by the formula  F = GMem/r2 So force is inversely proportional to…

Q: A rocket has an empty weight of 500 lb and carries 300 lb of fuel. If the fuel is burned at the rate…

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Q: of gravity increases, escape speed. A. Increases B. Decreases C. Remains the same

A: Escape velocity is the minimum velocity with which object thrown upward so that it crosses…

Q: Choose the BEST answer to the following: In his special theory of relativity, Einstein stated that…

A: The Einstein’s special theory of relativity determined the law of physics is same for all inertial…

Q: A rocket lifts a payload upward from the surface of Earth. The radius of Earth is R, and the weight…

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Q: The International Space Station has a mass of 4.19 x 105 kgand orbits at a radius of 6.79 x 106 m…

A: Let the mass of the international space station be denoted by m and the mass of the Earth be denoted…

Q: If the distance between the Earth and the Moon suddenly doubled, how would the force of gravity…

A: Given Distance between moon and earth becomes double. We have to calculate the force due to gravity…

Q: Two satellites in space each with a mass of 1700 KG are 100 M apart from each other. what is the…

A: Given: The mass of the satellite is m=1700 kg. The distance between the satellites is r=100 m. The…

Q: A jet plane has a takeoff speed of v to = 75 m/s and can move along the runway at an average…

A:

Q: True of False: These masses are placed one above the other. They are not touching and they are…

A: Given data  Two masses are placed one above the other ,they are exerting gravitational forces on…

Q: Newton's laws of motion hold true... in all frames of reference. only in inertial frames of…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The force of gravity is 6 times greater on the earth than it is on the moon. What is the weight of a…

A: Given The force of gravity is 6 times greater on the earth than it is on the moon mass of a man = m…

Q: The force of gravity between two objects is 64 N. The separation between them increases by a factor…

A: Given data:  Force of gravity between two objects (F) = 64 N Original distance between objects = r…

Q: The weight of a 100-kg mass body at a given elevation is 0.9804 kN. If the variation from the…

A: Given ,  The weight of a 100kg mass is 0.9804 kN at a particular elevation (say h), Given , weight =…

Q: What happens to Gravitational force if I double both of the masses but don't change their distance?…

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Q: I. Gravity decreases with increasing distance. II. Gravity causes the occurrence of ocean tides.…

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Q: One object has a mass of 3 kg, another has a mass of 6 kg, and they are 6 m apart. What is the force…

A: Given data The mass of the first object is m1=3 kg The mass of the second object is m2=6 kg The…

Q: Why would an observer out in space see the earth orbiting the sun rather than the sun orbiting the…

A: Solution: Earth revolves around the sun

Q: With how much velocity should a body be projected vertically upwards from the surface of the earth…

A: Let, the initial velocity of the body be denoted by 'u' and the velocity after reaching a height(h)…

Q: A satellite is 200 miles above the earth. It has a mass of 150 kg. If the mass of the satellite or…

A: Convert 200 miles to kilometer.

Q: The distance between two objects is 2 m. If the distance is changed to 1m, the gravitational ford…

A: Gravitational force is given by  F=Gm1m2/r2

Q: The force of gravity on a 6-kg mass is O twice as strong as the force of gravity on a 3-kg mass half…

A: Force due to gravity on a body is given by F = mg, where m = the mass of the body and g =…

Q: Choose the BEST answer to the following: A satellite in Earth orbit is above Earth’s (a) atmosphere.…

A: If a satellite escapes the gravitational field, it cannot orbit.

Q: Rank the average gravitational forces from greatest to least between (a) the Sun and Mars, (b) the…

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Q: A plane taking off and climbing to 2,000 feet while accelerating to 120 miles per hour. A…

A: Newton's first law of motion  An object at rest stays at rest and an object in motion stays in…

Q: An object is dropped from rest a distance d near the surface of Earth and takes time t. If the same…

A: The initial velocity of the object u=0 m/s When it falls from a height d its acceleration is a=9.8…

Q: An object is launched at a velocity of 20 m/s in a direction making an angle of 30° upward with the…

A: Given data The velocity of the object launch is v=20 m/s The angle of the projectile is θ=30o The…

Q: The distance between two objects is 2 m. If the distance is changed to 4m, the gravitational force…

A: The distance between two object is 2 metre if the distance is changed to 4 m the gravitational force…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.