Physics, 08.11.2019 00:31 alexanderickh1

Aperson of mass m the bridge to the river is h. the bungee cord has an un-stretched l beyoud that length it behaves as a spring with spring constant k. (a) (15 pts.) find an expression for the minimum spring constant k that will stop the person just before hitting the river (ignore the height of the person), in terms of m, g, and h (b) (10 pts.) suppose that when the person is at the bottom, just at the surface of the river, they see a very large fish and decide to grab it. the fish has a mass of 10% the mass of the person. assuming no energy is lost in the stretch of the bungee cord or to air resistance, how high will the person and fish bounce back up to? express your answer in terms of the initial height h.

Answers: 1

Show answers

Another question on Physics

Physics, 21.06.2019 17:20

When an object moves in uniform circular motion, the direction of its acceleration is a) in the same direction as its velocity vector. b) in the opposite direction of its velocity vector c) is directed toward the center of its circular path. d) is directed away from the center of its circular path. e) depends on the speed of the object.

Answers: 1

Answer

Physics, 22.06.2019 22:20

One hazard of space travel is debris left by previous missions. there are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. calculate the force exerted by a 0.110 mg chip of paint that strikes a space shuttle window at a relative speed of 5.00 ✕ 103 m/s and sticks, given the collision lasts 6.00 ✕ 10-8 s. such a collision chipped the window of the ill-fated challenger in june 1983, causing $50,000 of damage.

Answers: 2

Answer

Physics, 23.06.2019 02:50

Orque can be calculated by multiplying the force (n) applied at 90∘ to the lever arm at a distance (m) from the pivot point (point of rotation), the compound si unit for the torque is n⋅m. if the force (at 90∘ to the lever arm) applied is 15 n and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever?

Answers: 2

Answer

Physics, 23.06.2019 06:40

Relate the real life phenomenon with each branch physics; 1; mechanics 2; heat 3; sound 4; light(optics) 5; electricity& magnetism 6; atomic physics 7; nuclear physics 8; plasma physics 9; geophysics

Answers: 2

Answer

You know the right answer?

Aperson of mass m the bridge to the river is h. the bungee cord has an un-stretched l beyoud that le...

Questions