Which substance are acidic?

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.