A claw hammer is used to pull a nail from a piece of wood. Where should you place your hand on the handle and where should the nail be located in the claw to make the effort force as small as possible?

Explain whether an object can have kinetic energy and potential energy at the same time

A bumblebee is flying to the right when a breeze causes the bee to slow down with a constant acceleration of 0.50MS2? leftward. After 2.0s, the bee's speed is 2.75 s m? to the right. How fast was the bumblebee flying before the breeze?

A soccer ball is kicked with a speed of 22m/s at an angle of 35.0º above the horizontal. If the ball lands at the same level from which it was kicked, how long was it in the air?

Which category of elements have the property of being malleable an ductile?

Two rather unequal cars are competing in a drag race. For simplicity, let's assume that the accelerations of the cars are constant. Car 1 has an acceleration of 3.3 m/s2, while Car 2 has an acceleration of 5.9 m/s2. Car 2 gets off to a late start, 0.

Based on the number of valence electrons, what is the correct formula when nitrogen bonds to hydrogen? A) NH2 B) NH3 C) NH4 D) N2H

Choose the correct statement about the currents through the elements. Choose the correct statement about the currents through the elements. The currents in series-connected elements are not the same and depend on a current or a voltage source.

5 potential causes of infertility

Suppose you place a ball in the middle of a wagon, and then accelerate the wagon forward. Describe the motion of the ball relative to the ground. - Describe its motion relative to the wagon.

Water is poured into a container that has a leak. The mass 'm' of the water is given as a function of time 't' by, m=5t^0.8 - 3t + 20, with t>=0, mass in grams and t in seconds a. at what time is the water mass greatest, and b.