Would the springs inside a bathroom scale be more compressed or less compressed if you weighed yourself in an elevator that moved upward at constant velocity? Downward at constant velocity

Q: Which of the following statements ARE correct, regarding the situation if you are in a elevator,…

A: If I am in an elevator, and it is accelerating upwards, their will be a reaction force on the floor…

Q: What two forces act on you while you are in a moving elevator? When are these forces of equal…

A: When an object is moving in the elevator, it experiences both gravitational force and normal force.…

Q: Why does a satellite burn up when it descends into the atmosphere when it doesn't burn up when it…

A: A satellite is moving at a high speed in the space through vacuum due to the absence of air…

Q: A man with a mass of 100 kg stands on a scale (measuring Newtons) inside a lift that is accalerating…

A: Given data: Mass of man is, m=100 kg. Magnitude of acceleration is, a=4 m/s2.

Q: Which allows you to jump the farthest? Why? Only using your ankles? Knees and ankles?…

A: The ability to jump the farthest largely depends on the joint and muscle coordination in your lower…

Q: 10. If you release a ball white inside a freely falling elevator, the hall remains in front of you…

A:

Q: What two forces act on you while you are in a moving elevator? When are these forces of equal…

A: The two forces acting on an object moving in an elevator are the gravitational force and the normal…

Q: The miles of air above me are crushing me, so why am I not feeling it?

A:

Q: Your friend says that one way to improve air quality in a city is to have traffic lights…

A: Yes,  by synchronizing the traffic lights will improve the air quality in a city.

Q: An astronaut in an orbiting spacecraft is said to be weightless because O no force of gravity is…

A: As long as the astronaut is falling towards Earth, the gravitational force will act on it. Hence…

Q: Gravitational force acts on all objects in proportion to their masses. Why then does a heavy object…

A: All objects fall on the bottom with constant acceleration called acceleration due to gravity (g).

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

A: Mass of first object is 6 kg and that of second object is 3 kg

Q: By how much would the gravitational force between two objects change if the mass of one of the…

A:

Q: Is gravitational force acting on a person who falls off a cliff? On an astronaut inside an orbiting…

A: Earth attracts every object to its centre. Thus, an object falling off a cliff is under Earth’s…

Q: If two objects 10 meters apart exert a gravitational force on each other, how far apart do you move…

A:

Q: An elevator is moving downward and slowing down with an acceleration equal to one-quarter that of…

A:

Q: A 2 -kg mass is 1m away from a 5 -kg mass. What is the gravitational force (a) that the 5-kg mass…

A:

Q: A person steps on to a scale in a stationary elevator and notes their weight. The elevator begins to…

A: A person steps on a scale in a stationary elevator. The elevator begins to accelerate downward.

Q: When placed at equal distances apart, the greatest gravitational attraction will be between two…

A: Gravitational force is directly proportional to the product of masses of two interacting bodies or…

Q: A student has a mass of 25 kg. If he stands on a scale in an elevator that is accelerating downward…

A: mass of student (m) = 25 kg Acceleration (a) = 2 ms2

Q: If a woman A approaches a man B at a distance C, the gravitational force between them quadruples…

A:

Q: Which is heavier, 100 kg of feathers or 100 kg of lead? Which one takes us more volume? Why

A: Introduction: Weight: The weight of the object is defined as the force exerted by gravity on the…

Q: Two objects are placed near one another the mass of one object is doubled while the other distance…

A: Suppose mass of two objects are m1 and m2 Distance between them is R Gravitational; force between…

Q: By how much does the gravitational force that the Earth exerts on you change if you climb a palm…

A: Given data: A person climbs a palm tree.   Providing the man is pulling himself up at constant speed…

Q: Find the gravitational force between a cruise ship full of ducks with a mass of 11 x 10^8 kg and a…

A: Given data: Mass of cruise ship (m1) = 11 × 108 kg Mass of giant octopus (m2) = 2 × 106 kg Distance…

Q: Does your desk exert any gravitational force on you? why?

A:

Q: A stone is dropped from the edge of a cliff and hits the ground below in 3 s. The hight of the cliff…

A: Given data:  Initial velocity (V0) = 0 m/s Time (t) = 3 s Required: Height of the cliff

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.