Acceleration due to gravity is (always / sometimes / never) the same on the earth.

A penny is placed on a rotating turntable. Where on the turntable does the penny require the largest centripetal force to remain in place? Give your reasoning.

You set out to reproduce Thomson's e/m experiment with an accelerating potential of 150 V and adeflecting electric field of magnitude 6.

A 12 V battery is connected to a 1200 Ω resistor. How much current is flowing through the resistor? Question 12 options: 0.01 A 0.12 A 1 A 100 A 14400 A

A worker is holding a filled gas cylinder still. Which two sentences are true about the energy of the filled gas cylinder? It has no energy because it's being held still. It has gravitational potential energy because of its height.

If a car used 260.000 W of power to complete a race in 15 s. how much work did the car do? 3,900 39.000 390.000 J 3.900.000

You push a 45 kg wooden box across a wooden floor at a constant speed of 1.0 m/s. The coefficient of kinetic friction is 0.25. Now you double the force on the box. How long would it take for the velocity of the crate to double to 2.0 m/s

What is the middle layer of earth called

If 10 calories of energy are added to 2 grams of ice at - 30° C, calculate the final temperature of the ice. (Notice that the specific heat of ice is different from that of water.) T. F = -20° C -30° C 30° C 40° C

Are microwaves and radio waves faster or slower than other types of electromagnetic energy?

Write 5 sentences on the importance of including vegetables in your diet.