subject
Physics, 26.01.2021 22:20 silly82

Suppose an empty grocery cart rolls downhill in a parking lot. The cart has a maximum speed of 1.3 m/s when it hits the side of the store and comes to rest 0.30 s later. If an unbalanced force of -65 N stops the cart, what is the mass of the grocery cart? A.15 kg
B.15.0 kg
C.50 kg
D.50.0 kg
E. none of the above

ansver
Answers: 2

Other questions on the subject: Physics

image
Physics, 21.06.2019 22:50, Scp049
As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is 100) a) static friction. b) kinetic friction. c) a combination of static and kinetic friction. d) neither static nor kinetic friction, but some other type of friction. e) it is impossible to tell what type of friction acts in this situation.
Answers: 1
image
Physics, 22.06.2019 04:30, tinytoonjr8052
Light from the sun reaches the earth in 8.3 minutes. the velocity is 3.00 x 10^8 m/s. how far is earth from the sun? i know how to get to d = (3 x 10^8 m/s)(498 sec). i just don't know how to get from there to the answer being 1.5 x 10^11 m.
Answers: 3
image
Physics, 22.06.2019 11:30, chelsilconway2262
This punnett square shows the cross between two pants. one parent has round seeds (rr). and the other parent has wrinkled seeds (rr) which best describes their offspring as shown in this cross?
Answers: 2
image
Physics, 22.06.2019 18:00, maren17
Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17°c. this system uses a regenerator as well as reheating and intercooling – the intercooler returns the air to the inlet temperature. the pressure ratio across each compressor is 4 ; 300 kj/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20°c. determine the system’s thermal efficiency. assume isentropic operations for all compressor and the turbine stages and use constant specific heats at room temperature. (0.378)
Answers: 3
You know the right answer?
Suppose an empty grocery cart rolls downhill in a parking lot. The cart has a maximum speed of 1.3 m...

Questions in other subjects: