Physics, 17.04.2020 01:33 wirchakethan23
A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.803 rad / s . 0.803 rad/s. You, with a mass of 68.9 kg , 68.9 kg, walk clockwise around the platform along its edge at the speed of 1.15 m / s 1.15 m/s with respect to the platform. Your 20.5 kg 20.5 kg poodle also walks clockwise around the platform, but along a circle at half the platform's radius and at half your linear speed with respect to the platform. Your 18.9 kg 18.9 kg mutt, on the other hand, sits still on the platform at a position that is 3/4 of the platform's radius from the center. Model the platform as a uniform disk with mass 93.1 kg 93.1 kg and radius 1.93 m . 1.93 m. Calculate the total angular momentum of the system.
Answers: 2
Physics, 22.06.2019 01:30, hardwick744
The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?
Answers: 1
Physics, 22.06.2019 05:30, ninaaforever
Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.
Answers: 2
Physics, 22.06.2019 17:10, katelynzaro
It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .
Answers: 1
A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.803 rad / s...
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