subject
Physics, 21.06.2019 16:30 gomek

A7.0-kg ball rolling at 2.0 m/s bumps into a pillow and stops in 0.58 s . part a) find the force exerted by the pillow. part b) how much force does the ball exert on the pillow?

ansver
Answers: 3

Another question on Physics

question
Physics, 22.06.2019 00:00
Name three different units of energy used to measure heat and describe what type of situations each is usually used.
Answers: 1
question
Physics, 22.06.2019 17:40
Aresistor rated at 250~\text{k}\omega250 kฯ‰ is connected across two d cell batteries (each 1.50 v) in series, with a total voltage of 3.00 v. the manufacturer advertises that their resistors are within 5% of the rated value. what are the possible minimum current and maximum current through the resistor?
Answers: 1
question
Physics, 22.06.2019 19:30
A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kgยทk and 128 j/kgยทk, respectively.
Answers: 1
question
Physics, 22.06.2019 21:30
Atoaster oven has a resistive heating element. the average rate at which it dissipates energy as thermal energy is 1.00 \(\rm kw\). in the united states, emf amplitude in household circuits is \(\mathcal e_{\max}\) = 170 \({\rm \; v}\) and the \(\rm ac\) oscillation rate is 60 \(\rm hz\). part a what is the root-mean-square current through the heating element?
Answers: 2
You know the right answer?
A7.0-kg ball rolling at 2.0 m/s bumps into a pillow and stops in 0.58 s . part a) find the force exe...
Questions
question
Chemistry, 13.04.2021 01:50
Questions on the website: 13579923