According to newton's second law of motion, when an object is acted on by an unbalanced force, how will that object respond?

a. it will decrease speed.

b. it will stop moving.

c. itwill increase velocity.

d. it will accelerate.

A person sitting in a parked car hears an approaching ambulance siren at a frequency f1 and as it passes him and moves away he hears a frequency f2. The actual frequency f of the source is Group of answer choices

The pressure on a gas at - 62◦c is doubled, but its volume is held constant. what will the final temperature be in degrees celsius? answer in units of ◦c.

A boy on a bus traveling 120 km/h has a foot-long sandwich in his backpack. When the boy gets off at the bus stop, which describes the length of the uneaten sandwich? The length of the sandwich is 1 foot.

Two 4.2 kg masses are connected to each other by a spring with a force constant of 28 N/m and a rest length of 1.0 m. If the spring has been compressed to 0.80 m in length and the masses are traveling toward each other at 0.

Which identification number is the most important component of your personal identity

Is burning a nonrenewable natural gas a chemical change

The magnitudes of the vertical and horizontal components of a vector are 11 and 17 centimeters respectively. Find the magnitude of the vector and the angle from the horizontal axis.

A rectangular coil with sides 0.10 m by 0.25 m has 500 turns of wire. It is rotated about its long axis in a magnetic field of 0.58 T directed perpendicular to the rotation axis.

Stars set about how many minutes earlier each day? A. 8 B. 6 C. 4 D. 2

Whose atomic theory explains how atoms emit and absorb light