Physics, 30.03.2020 23:25 haybales6019
A block of mass m = 5.0 kg is pulled by a constant force across a flat floor so that it moves with a constant acceleration. The force has a magnitude F = 60 N and is directed up at an angle of θ = 30° with respect to horizontal. The block’s bottom surface always remains in contact with the floor. The kinetic friction between the block and floor has a coefficient µk = 0.30.
Calculate the magnitude of the block’s acceleration.
Answers: 2
Physics, 21.06.2019 21:40
Since the investigative question has two variables, you need to focus on each one separately. thinking only about the first part of the question, mass, what might be a hypothesis that would illustrate the relationship between mass and kinetic energy? use the format of "if…then…because…” when writing your hypothesis.
Answers: 1
Physics, 21.06.2019 22:50
Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.
Answers: 2
Physics, 22.06.2019 15:20
Aphoton is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized. very far away from the nucleus, the released electron has a velocity of 750,000 m/s. what was the wavelength of the absorbed photon?
Answers: 2
Physics, 22.06.2019 16:30
If anyone who can me with this hw? i would really appreciate it
Answers: 2
A block of mass m = 5.0 kg is pulled by a constant force across a flat floor so that it moves with a...
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