Physics, 13.03.2020 18:32 senceepoai22
A professor holds an eraser against a vertical chalkboard by pushing horizontally on it. He pushes with a force that is much greater than is required to hold the eraser. The force of friction exerted by the board on the eraser increases if he:
1.pushes so his force is slightly downward but has the same magnitude
2.pushes with slightly less force
3.stops pushing
4.pushes with slightly greater force
5.pushes so his force is slightly upward but has the same magnitude
Answers: 1
Physics, 21.06.2019 19:30
11. you want to calculate the displacement of an object thrown over a bridge. using -10 m/s2 for acceleration due to gravity, what would be the total displacement of the object if it took 8 seconds before hitting the water?
Answers: 1
Physics, 22.06.2019 13:20
Which of the following is the main energy source for the sun? a. fission of hydrogen b. fusion of hydrogen c. fusion of helium d. fission of iron
Answers: 2
Physics, 22.06.2019 17:30
Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. in a typical strike, the chameleon's tongue accelerates at a remarkable 220 m/s2 for 20 ms, then travels at constant speed for another 30 ms.
Answers: 1
Physics, 22.06.2019 21:50
Ajoint produces movement when its angle decreases. which type of movement is it?
Answers: 1
A professor holds an eraser against a vertical chalkboard by pushing horizontally on it. He pushes w...
Mathematics, 09.03.2021 01:30
Mathematics, 09.03.2021 01:30
Mathematics, 09.03.2021 01:30
Advanced Placement (AP), 09.03.2021 01:30
English, 09.03.2021 01:30
Arts, 09.03.2021 01:30
History, 09.03.2021 01:30
Chemistry, 09.03.2021 01:30