How much positive and negative charge is there in a cup of water?

Energy transfers occur during collisions in chemical and nuclear reactions true or false

Two 125 kg bumper cars are moving toward each other in opposite directions. Car X is moving at 10 m/s and Car Z at - 12 m/s when they collide head-on.

A ball has a mass of 140 g. what is the force needed to accelerate the ball at 25 m/s2?

A box has a mass of 35kg. he pulls the rope horizontally with a force of 175 N. Find the horizontal acceleration of the box as it moves along the floor if it experiences a friction force of 55 N.

What are examples of devices that use electromagnetic waves? Check all that apply. FM radios microwaves TV remote controls alarm clocks X-rays

A measure of the energy of motion of the particles in a substance is its

What is the final velocity of the combined bumper cars A 225 kg red bumper car is moving at 3.0 m/s. It hits a stationary 180 kg blue bumper car. The red and blue bumper cars combine and hit a stationary green bumper car of mass 150 kg.

0.4-L glass of water at 20°C is to be cooled with ice to 5°C. The density of water is 1 kg/L, and the specific heat of water at room temperature is c = 4.18 kJ/kg·°C. The specific heat of ice at about 0°C is c = 2.11 kJ/kg·°C.

Regions in a sound wave where particles are farthest apart are called

What will happen to thermal condictivity of a substance if its thickness is doubled? Also give reason.