A glass of ice at 0°C changes to a glass of water at 0°C. What caused the ice to change to water

What will happen if an object or liquid with a density less than 1.0 g/cm3 is placed into water; do the same for an object or liquid with a density more than 1.0 g/cm3?

A series circuit has a current of 2 Amperes and an equivalent resistance of 4 Ohms. What is the power of this circuit?

How many joules of energy are required to accelerate a 1.0-kg mass from rest to a speed of 86.6% the speed of light?

When you measure the current and voltage in a ac circuit with a multimeter, is your result the peak value or the rms value?

When the dog shakes his body, his fur and the droplets of water clinging to it move in circular arcs. If the droplets leave the fur, what will be the subsequent motion?

Two copper wires with different diameters are joined end to end. If a current flows in the wire combination, what happens to electrons when they move from the larger-diameter wire into the smaller-diameter wire?

A baseball player is warming up and tosses a ball straight up into the air. The ball travels up until it reaches some maximum height, and then falls back down to the player/'s hand.

Volume can be measured in liters or cubic meters. a. T b. F

A spring with a spring constant of 1200 N/m has a 55-g ball at its end. The energy of the system is 5.5J. What is the amplitude of vibration?

Force F1 acts on a particle and does work W1. Force F2 acts simultaneously on the particle and does work W2. The speed of the particle does not change. Which one of the following must be true? a. W1 is zero, and W2 is positiveb. W1 = - W2c.