If one firecracker produces a sound intensity of 90db, what would be the intensity of a sound produced by 1000 firecrackers, all going off at once?

After three half-lives, what fraction of a radioactive sample has decayed 5/6 1/2 7/8 2/3

Which statements are correct? Check all that apply. A. An insulator slows the flow of heat. B. A conductor increases the flow of heat. C. A conductor decreases the flow of heat. D. An insulator speeds up the flow of heat.

Analyze the formula W = mg to explain how an objects weight can change even when its mass remains constant.

A Each time he does one pushup, Jose, who has a mass of 89kg, raises his center of mass by 25 cm. He completes an impressive set of 150 pushups in 5 minutes, exercising at a steady rate If we assume that lowering his body has no energetic cost, what

How is an electric current carried? by moving current in one direction by changing directions of the current by moving electrons in a wire by changing electrons into current

Using diagram differentiate between solenoid and a toroid

If a gas has a gage pressure of 156 kPa, its absolute pressure is approximately

Which factor affects elastic potential energy but not gravitational potential energy?

Projectile motion is a combination of which two types of motion?

A stone is thrown vertically upward with an initial speed of 19.3 m/s. Neglect air resistance. The speed of the stone when it is 5.81 m higher is: