What is meant by an objects acceleration?

a. distance covered in an amount of time

b. how fast an object is changing speed

c. force needed to change an objects motion

d. magnitude of a push or pull

What do geologists use to find absolute rock and fossil ages

A sound wave has a frequency of 628 Hz in air and a wavelength of 0.49 m. What is the temperature of the air? Assume the velocity of sound at 0^◦C is 325 m/s. Answer in units of ◦C.

Which of the following is true about high-energy mechanical devices?

A tornado has been spotted in your area the tornado warning says that the funnel cloud is traveling east at 40 miles per hour the warning has given us the tornados what A. Velocity B. Instantaneous speed C. Acceleration D. Average speed

Where would you find the least dense water? at 1,000 m in the Antarctic Ocean, at 200 m in the Arctic Ocean, at the surface of the Atlantic Ocean, below 1,000 m in the Pacific Ocean

2 A scientific theory is

Explain the roles of Earth's own energy sources and solar energy in the rock cycle

In order to merge into highway traffic, a car accelerates along a 100.0 m on ramp from rest to 25.0 m/s. How much time does this take?

Muscle control is the ability to quickly change directions and make complex movements

According to the first law of thermodynamics, what could happen when heat is added to a system? The internal energy of the system decreases. The heat is turned into work done by the system. New energy is created within the system.