Acceleration of an 82 kg couch that is pushed across the floor with an unbalanced force of 21N

An observer notes that the pitch of a sound is becoming progressively higher. the observer can conclude that the sound is moving

Teacher asking me this i have to call her back soon : (what are characteristics of the electromagnetic spectrum?

What is the most important feed grain for livestock

What is power? A. The efficiency of a machine B. The number of machines used C. The amount of work done D. The rate of doing work

A car has a mass of 800 kg. It's weight is approximately?

Before designing the filter, one must understand the relationship between the output voltage of the circuit and the frequency. For a series RLC circuit, how do the impedances of the circuit elements depend on the frequency? a.

A ball rolls down an incline and off a horizontal ramp. Ignoring air resistance, what force or forces act on the ball as it moves through the air just after leaving the horizontal ramp? a). The weight of the ball acting vertically down.

How many atoms are in a sample of 1.83 moles of potassium (K) atoms? A) 3.04 * 10-24 atoms K B) 3.29 * 1023 atoms K C) 1.10 * 1024 atoms K D) 6.02 * 1023 atoms K

If a single mutation turns off the growth of some pairs of legs within an organism, what's most likely affected? a. A substituted gene b. A deleted gene c. A duplicated gene d. A Hox gene

car slows down from 20 m/s to rest in a distance of 85 m. What was its acceleration, assumed constant?