How much heat must be added to 50.0g of aluminum to raise its temperature from 25°C to 125°C

Why is it important that the mouth and stomach are near the start of the digestive system? thx

A rigid layer that lies outside the cell's membrane is

Why do we care about elements heavier than Iron? Where do they fit into our everyday life?

What is the magnitude of δv12 if the bulb is removed from the socket (i. e. the circuit is not closed) ?

3.00 kg block moving 2.09 m/s right hits a 2.22 kg block moving 3.92 m/s left. afterwards, the 3.00 kg block moves 1.71 m/s left. find the velocity of the 2.22 kg block afterwards

What is the acceleration of a 30.0-kg go kart if the thrust of its engine is 300.0 N?

Which of the following correctly compares a scientific investigation to a demonstration

You push a 45 kg wooden box across a wooden floor at a constant speed of 1.0 m/s. The coefficient of kinetic friction is 0.25. Now you double the force on the box. How long would it take for the velocity of the crate to double to 2.0 m/s

What is the middle layer of earth called

If 10 calories of energy are added to 2 grams of ice at - 30° C, calculate the final temperature of the ice. (Notice that the specific heat of ice is different from that of water.) T. F = -20° C -30° C 30° C 40° C