What is the mechanical advantage of a pulley?

A car traveling at 7.3 m/s accelerates at the rate of 0.82 m/s2 for an interval of 7.4 s. Find vf.

A certain string breaks when a force of 200 N is exerted on it. If two people pull on opposite ends of the string, each with a force of 180 N, will the string break? Explain

Who first calculated the orbits of comets based on historical records dating back to antiquity?

Which statement describes the difference between speed and velocity?

A 60.0 - kg dancer leaps 0.32 m high. With what momentum does he reach the ground

You accidentally slide a glass of milk off a table that is 0.9 m tall. How long does it take the milk to hit the ground.

A container can be made from steel [β = 36 * 10-6 (C°) - 1] or lead [β = 87 * 10-6 (C°) - 1]. A liquid is poured into the container, filling it to the brim.

Which solution has the greatest number of hydroxide ions? baking soda, pH = 9 milk, pH = 6 tomato juice, pH = 3.5 vinegar, pH = 2A substance is boiled repeatedly and stirred, but the solute never mixes with the solvent.

Part of the suns energy that reaches the Earths surface is absorbed by land and water as heat. The earths surface then releases heat back into the atmosphere Which of the following is true about this solar energy that is absorbed and released by

When Emeka was first training his dog, Smooches, to heel he would give Smooches a treat when she stayed close during walks. Now Smooches stays right by Emeka's side, even when she is not on her leash. In this case, a.