Physics, 12.08.2020 09:01, jdkrisdaimcc11
A worker wants to load a 12 kg crate into a truck by sliding the crate up a straight ramp which is 2.5 m long and which makes an angle of 30 degrees with the horizontal. The worker believes that he can get the crate to the very top of the ramp by launching it at 5 m/s at the bottom and letting go. But friction is not neglible; the crate slides 1.6 m upthe ramp, stops, and slides back down.
Required:
a. Assuming that the friction force actingon the crate is constant, find its magnitude.
b. How fast is teh crate moving when it reachesthe bottom of the ramp?
Answers: 1
Physics, 22.06.2019 18:30, dakotakeating4513
Apiece of metal 75g at 110°c is dropped in a container with 500g at 20°c. the h2o if temperature is 24°c find specific heat capacity of metal
Answers: 3
Physics, 22.06.2019 20:10, kerarucker12pe384k
Atruck with 34-in.-diameter wheels is traveling at 55 mi/h. find the angular speed of the wheels in rad/min, *hint convert miles to inches & hours to minutes:
Answers: 2
Physics, 22.06.2019 21:30, katwright1124
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
A worker wants to load a 12 kg crate into a truck by sliding the crate up a straight ramp which is 2...
Physics, 14.04.2021 03:40
Mathematics, 14.04.2021 03:40
Mathematics, 14.04.2021 03:40
Mathematics, 14.04.2021 03:40
Mathematics, 14.04.2021 03:40
Mathematics, 14.04.2021 03:40
History, 14.04.2021 03:40