Physics, 12.10.2019 02:30, cchavcchav2944

Aball at rest falls from a platform above the ground. the ball falls freely and hits the ground 1.1 s later. what is the height of the platform? 5.4 m 5.9 m 10.8 m 11.9 m

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 00:00, morgaaaan3835

Suppose that recording station n is located 200 km north of the epicenter of an earthquake, and recording station s is located 100 km south of the epicenter of the same earthquake. which of the following statements would be true?

Answers: 2

continue

Physics, 22.06.2019 10:50, afonseca73

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.

Answers: 3

continue

Physics, 22.06.2019 12:30, tigistamare03

When a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam "10" feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)

Answers: 2

continue

Physics, 22.06.2019 12:40, live4dramaoy0yf9

Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)

Answers: 2

continue

Do you know the correct answer?

Aball at rest falls from a platform above the ground. the ball falls freely and hits the ground 1.1...