Physics, 31.07.2021 01:00 Manuel2019
Our system is a block attached to a horizontal spring on a frictionless table. The spring has a spring constant of 4.0 N/m and a rest length of 1.0 m, and the block has a mass of 0.25 kg. Compute the PE when the spring is compressed by 0.50 m.
Answers: 3
Physics, 22.06.2019 22:00
Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.
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Physics, 23.06.2019 03:10
You have been hired to design a spring-launched roller coaster thatwill carry two passengers per car. the car goes up a 10-m highhill, then descends 15m to the track's lowest point. you'vedetermined that the spring can be compressed a maximum o 2.0m andthat a loaded car will have a maximum mass of 400kg. for safetyreasons, the spring constant should be 10% larger than the minimumneeded for the car to just make it over the top. a) what spring constant (k) should you specify ? b) what is the maximum speed of a 350 kg car if the spring iscompressed the full amount.
Answers: 2
Physics, 23.06.2019 13:30
Which law states that that the direction of the induced current is such that the magnetic field resulting from the induced current opposes the change in the field that caused the induced current? a. faraday's law b. lenz's law c. oersted's law d. ampere's law
Answers: 1
Physics, 23.06.2019 13:30
A6.5-g iron meteor hits the earth at a speed of 295 m/s. if its kinetic energy is entirely converted to heat in the meteor, by how much will its temperature rise? the specific heat of iron is 113 cal/kg ∙ c°, and 1 cal = 4.186 j. a) 57,100 c° b)384 c° c)0.147 c° d)92.0 c°
Answers: 1
Our system is a block attached to a horizontal spring on a frictionless table. The spring has a spri...
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