Answers: 1
Physics, 22.06.2019 04:00
If steel is more dense that lake water, why can a boat float
Answers: 1
Physics, 22.06.2019 10:40
As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.
Answers: 1
Physics, 22.06.2019 17:10
It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .
Answers: 1
Physics, 22.06.2019 17:30
Heterogeneous mixture with larger particles that never settle is
Answers: 2
3. Now use the Frequency slider to increase the frequency to a high value. Compare the motion of the...
Mathematics, 09.11.2019 09:31
Mathematics, 09.11.2019 09:31
Mathematics, 09.11.2019 09:31
Mathematics, 09.11.2019 09:31
Biology, 09.11.2019 09:31
Mathematics, 09.11.2019 09:31
Mathematics, 09.11.2019 09:31
Mathematics, 09.11.2019 09:31
Biology, 09.11.2019 09:31
Biology, 09.11.2019 09:31