What is the total amount of heat in a substance

A slightly bruised apple will rot extensively in about 2.5 days at room temperature (25.0°C). If it is kept in the refrigerator at 0.5°C, the same extent of rotting takes about 17 days. What is the activation energy for the rotting reaction?

The equation for momentum is p=mv. Which letter represents the momentum? Question 2 options: p m v

Assume the width of an ice skate is reduced by sharpening to 0.025 cm and the length of the ice skate is 15 cm. Assuming the ice skater weighs 70.0 kg, calculate the pressure that the skater exerts on the ice if they are balanced on a single skate.

A completely reversible heat engine operates with a source at 1500 R and a sink at 500 R. If the entropy of the sink increases by 10 Btu/R, how much will the entropy of the source decrease? How much heat, in Btu, is transferred from the source?

The wavelengths of light given off by a star is called the stars Corona Absorption spectrum Emission spectrum Color wheel

TRUE OR FALSE The survival rate of those who receive immediate treatment for cardiogenic shock is about 90%. im bored and hate to think ya dig

A boy runs 100m due North and 100m due east. what is displacement?

A saturated solution of lead (II) nitrate was made at 50 °C using 100 g of water, and this was then allowed to cool to 30 °C. Predict what would happen as the solution cooled?

Two loudspeakers at an outdoor rock concert are located 3.8 meters apart. You are standing 17.1 meters from one of the speakers and 20.3 from the other.

If a caterpillar is moving in a straight line at a speed of 7 cm/s, how long will it take the caterpillar to reach a green, leafy plant that is 56 cm away?