At what height is an object that has a mass of 50kg, if its gravitational

potential energy is 9800J?

1. Impulse is the product of force and distance. True or false? 2. The force necessary to lift an object is g. True or false? 3. A joule is a newton times a second. True or false? 4. Work is done to lift an object in the classroom. True or false? 5.

A particle's trajectory is described by x = (12t3-2t2) m and y = (12t2-2t) m, where t is in s. What is the particle's speed at t=0s? What is the particle's speed at t=5.0s? Express your answer using two significant figures.

An object initially at rest experiences an acceleration of 9.8 m/s2. How much time will it take to achieve a velocity of 58 m/s?

the other end of the pipe. With the aide of the pipe, does the applied force produce a smaller torque, a greater torque, or the same torque on the nut?

A cat falls from a tree (with zero initial velocity) at time t = 0. How far does the cat fall between t = 1 2 and t = 1 s? Use Galileo's formula v (t) = - 9.8t m/s.

How are the functions of the cytoskeleton and the cell wall similar

A 15.0 volt storage battery is connected to three resistors, 7.75?, 15.5?, and 21.7?, respectively. the resistors are joined in series. what is the current in the circuit?

3. When driving a car, the chemical energy in gasoline is converted to heat (thermal energy) in the engine. Most of this thermal energy is then converted to mechanical energy, which makes the car move. What happens to the rest of the thermal energy?

Does aliens exist in this world

An olympic sprinter can go from a state of rest to 11 meters per second in 10 seconds. What is the sprinter's average acceleration?