subject
Physics, 20.01.2020 13:31 twalters88

An 0.80-kg block is held in place against the spring by a 67-n horizontal external force (see the figure. the external force is removed, and the block is projected with a velocityv1 = 1.2 m/s upon separation from the spring. the block descends a ramp and has a velocity v2 = 1.9 m/s at the bottom. the track is frictionless between points a andb. the block enters a rough section atb, extending toe. the coefficient of kinetic friction over this section is 0.39. the velocity of the block isv3 = 1.4 m/s atc. the block moves on tod, where it stops. the spring constant of the spring is closest to

ansver
Answers: 1

Another question on Physics

question
Physics, 22.06.2019 14:00
If element x has 99 protons how many electrons does it have
Answers: 1
question
Physics, 22.06.2019 14:30
Which one of the following terms is used to indicate the natural tendency of an object to remain at rest or in motion at a constant speed along a straight line? velocity acceleration equilibrium force inertia
Answers: 2
question
Physics, 22.06.2019 16:30
An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?
Answers: 1
question
Physics, 22.06.2019 18:30
Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s.when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?
Answers: 3
You know the right answer?
An 0.80-kg block is held in place against the spring by a 67-n horizontal external force (see the fi...
Questions
question
Mathematics, 30.04.2021 03:10
question
Mathematics, 30.04.2021 03:10
question
Mathematics, 30.04.2021 03:10
question
Mathematics, 30.04.2021 03:10
question
English, 30.04.2021 03:10
question
Biology, 30.04.2021 03:10
question
Mathematics, 30.04.2021 03:10
Questions on the website: 13722361