How much work is performed when a 42kg crate is lifted to a height of 2m?

Each of two identical objects carries a net charge. The objects are made from conducting material. One object is attracted to a positively charged ebonite rod, and the other is repelled by the rod.

A missile is fired from a jet flying horizontally at Mach 1 (1100 ft/s). The missile has a horizontal acceleration of 1000 ft/s2. Calculate its horizontal velocity at 10.0 seconds after it is fired.

How old is an adult male frog

Power stations do not work at maximum output all of the time. The capacity factor for non-renewables is always higher than for renewables. This is because ...

Aristotle believed that everything on Earth is made of one of only 4 types of material: earth, air, water, or fire. True False

Why did the chicken cross the road.

A 98.1 kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.69 rad/s. A monkey drops a 9.29 kg bunch of bananas vertically onto the platform.

7. A type of non-renewable energy would be: O wind O petroleum O water solar

A refrigerator is a system. The energy input into the refrigerator system (in the form of electricity) is the same as the amount of energy output from the system. Which of the following best describes the energy output of the system?

A 1,120 kg car is travelling with a speed of 40 m/s. Find its energy.