Physics, 09.12.2019 22:31, iwannabewinston

Part a- a block starts at rest and slides down a frictionless track. it leaves the track horizontally, flies through the air, and subsequently strikes the ground. the acceleration of gravity is 9.81 m/s 2. the mass of the block is 447g. the initial height of the track is 4m, while the final height of the track is 2.4m above the ground. what is the speed v of the ball when it leaves the track? answer in units of m/s. part b- what is the horizontal distance x the block travels in the air? answer in units of m. part c- what is the speed of the block when it hits the ground? answer in units of m/s.

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 03:00, tylersabin72

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

Answers: 1

continue

Physics, 22.06.2019 11:00, kylieweeks052704

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

Answers: 1

continue

Physics, 22.06.2019 14:50, MoogleCaliS

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.

Answers: 2

continue

Physics, 22.06.2019 15:50, shaylawymannnnn

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air

Answers: 3

continue

Do you know the correct answer?

Part a- a block starts at rest and slides down a frictionless track. it leaves the track horizontall...