Summarize how the force of gravity factors into at least three processes in the formation of stars.

The heat capacity of 0.125Kg of water is measured to be 523j/k at a room temperature. Hence, calculate the heat capacity of water (a) per unit mass (b) per unit volume

In a downtown office building you notice each of the four sections of a rotating door has a mass of 85 kg. What is the width of each section of the door if a force of 58 N applied to the outer edge of a section produces an angular acceleration of 0.

A series circuit has a current of 5 A. The circuit contains 10ohms resistor. What is the voltage of the circuit

What is the density of the crusts?

Describe how the ringing sound of a telephone travels from the phone to your ear?

How does work get affected when a object is lifted up instead of using a ramp

Choose the correct statement. a. Usually, when one form of energy is converted to another, no energy is wasted. b. The total amount of energy in the universe is gradually decreasing. c. This statement illustrates the first law of thermodynamics. d.

A 10 cm3 block of paraffin (a type of wax) weighs 0. 085 N. It is carefully submerged in a container of gasoline. One cm3 of gasoline weighs 0.0069 N. a. What is the weight of the gasoline displaced by the paraffin? b.

What is a device made by joining two different materials to form a circuit that produces an electric current? a. convertor b. resistor c. semiconductor d. thermocouple

An elevator weighing 15000 newtons s raised in 50 seconds. If the distance between stories is 3.0 meters how much power is required of the motor?