You throw a ball straight up into the air at a speed of 15 m/s. You want to know how high above your hand the ball will be at exactly 2.5 sec after you released it.

Based on the field lines, what are the charges of the objects? X: positive Y: negative X: negative Y: positive X: negative Y: negative X: positive Y: positive

An electric motor rotating a workshop grinding wheel at 1.00 3 102 rev/min is switched off. Assume the wheel has a constant negative angular acceleration of magnitude 2.00 rad/s2.

What two plates form the boundary on the western coast of Canada

A torch bulb is rated 2.5V and 750mA. Calculate its power, its resistance and the energy consumed if this bulb lighted for 4 hours

Heat engines converts what type of energy into mechanical energy? 1. chemical 2. thermal 3. nuclear 4. elastic

How was bohr atomic model similar to Rutherford's model

A rigid container filled with a gas is placed in ice. What will happen to the pressure of the gas? And what will happen to the volume?

A man is sitting on a 20 m height building and his mass is 50 kg. Calculate the mechanical energy.

Which of the following correctly describes which types of waves travel through which types of mediums? A) Transverse waves travel through solids, liquids, and gases.

Niko was hiking in the mountains when he found a spring, or a place where water naturally flows out of the ground. Where did the water in the spring come from? A. It is water that was squeezed out of an igneous rock when the rock changed. B.