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Question: A person is pushing a heavy box across a floor. If the box does not move, what can be said..
Question: What is the work done against friction when a 5 kg box is pushed 10 m across a surface wit..
Question: A block is sliding down a frictionless incline. If the incline is now covered with a mater..
Question: A block of mass 10 kg is resting on a horizontal surface. If the coefficient of static fri..
Question: Which of the following factors does NOT affect the coefficient of kinetic friction?Options..
Question: A particle moves in a circular path of radius r with a constant angular acceleration α. Wh..
Question: A conical pendulum consists of a mass attached to a string that swings in a horizontal cir..
Question: A mass m is attached to a string and is whirled in a vertical circle. At the highest point..
Question: A cyclist is moving in a circular track of radius 30 m. If the cyclist completes one round..
Question: At what temperature will the RMS speed of a gas be 300 m/s if its molar mass is 28 g/mol?O..
Question: In a mixture of gases, how is the RMS speed of the mixture calculated?Options: Using the a..
Question: What is the effect of increasing the number of gas molecules on the RMS speed?Options: Inc..
Question: In a closed container, if the temperature of a gas is increased, what happens to the press..
Question: What happens to the volume of a gas if its temperature is increased at constant pressure?O..
Question: In a gas, the distribution of molecular speeds is described by which law?Options: Maxwell-..
Question: What happens to the average speed of gas molecules if the temperature is increased?Options..
Question: For an ideal gas, the equation of state is given by:Options: PV = nRTPV = NkTPV = mRTPV = ..
Question: A boat can travel at 12 km/h in still water. If it travels downstream in a river flowing a..
Question: Two cars are moving towards each other at speeds of 50 km/h and 70 km/h. If they are 200 m..
Question: A person walks at 4 km/h in still water. If the current of the river is 2 km/h, what is th..
Question: A train moving at 72 km/h passes a platform 300 m long. How long does it take to cross the..
Question: A car is moving at 80 km/h and a motorcycle at 60 km/h in the same direction. What is the ..
Question: A stone is thrown vertically upward with a speed of 20 m/s. How high will it rise before c..
Question: An object moves in a straight line with an acceleration of 2 m/s². If its initial velocity..
Question: A projectile is launched with an initial velocity of 30 m/s at an angle of 60 degrees. Wha..
Question: If a satellite is moved to a higher orbit, what happens to its orbital period?Options: It ..
Question: What is the gravitational potential energy of a satellite of mass m at a height h above th..
Question: Which of the following orbits allows a satellite to cover the entire surface of the Earth ..
Question: A satellite is in a circular orbit around the Earth. If its speed is doubled, what will ha..
Question: If the radius of the Earth is R and a satellite is in a circular orbit at a height h above..