Physics, 06.11.2019 07:31 derisepicowe0fa
Two scientists were working on an idea. they kept in touch by asking each other questions about which designs worked better. after months of experiments, one of the scientists discovered a breakthrough. he tested it several more times and got the same result. which statement describes what the scientist should do with his data? he should test two variables to see if he gets the same outcome. he should start a new project because his colleague was already working on the same idea. he should share all his work with his colleague so that his colleague can publish it. he should get the data peer reviewed and published so other scientists can try to reproduce his results.
Answers: 1
Physics, 22.06.2019 06:00
A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s
Answers: 1
Physics, 22.06.2019 13:40
Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.
Answers: 2
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
Physics, 22.06.2019 20:00
Awave that is traveling fast can be said to have a high a. frequency b. speed c. wavelength d. amplitude e. period f. none of these
Answers: 1
Two scientists were working on an idea. they kept in touch by asking each other questions about whic...
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