Physics, 05.05.2020 15:13 yesharabaskoro
A new record for running the stairs of the Empire State Building was set on February 3, 2003. The 86 flights, with a total of 1576 steps, was run in 9 minutes and 33 seconds. If the height gain of ech step
was 0.20 m, and the mass of the runner was 70.0 kg, what was his average power output during the climb? Give your answer in both watts and horsepower
Answers: 2
Physics, 22.06.2019 16:50
Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.
Answers: 1
Physics, 22.06.2019 18:30
Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.
Answers: 1
Physics, 22.06.2019 20:30
We will use a video to study faraday’s law of electromagnetic induction by analyzing the induction that occurs due a coil of copper wire sliding along an air track that passes through an external magnetic field. specifically, we will: examine some of the main principles behind faraday’s law. apply lenz’s law to determine the direction of the induced emf. take measurements of the induced emf from the voltmeter as the coil passes into and out of the external magnetic field. use the horizontal scale provided to determine the speed of the coil. calculate the magnetic field induced in the coil as it passes into and out of the external magnetic field.
Answers: 2
A new record for running the stairs of the Empire State Building was set on February 3, 2003. The 86...
Mathematics, 09.12.2020 17:10
Mathematics, 09.12.2020 17:10
Biology, 09.12.2020 17:10
Mathematics, 09.12.2020 17:10
Mathematics, 09.12.2020 17:10
Computers and Technology, 09.12.2020 17:10
Mathematics, 09.12.2020 17:10
Mathematics, 09.12.2020 17:10
Mathematics, 09.12.2020 17:10
Mathematics, 09.12.2020 17:10
Mathematics, 09.12.2020 17:10
Mathematics, 09.12.2020 17:10
English, 09.12.2020 17:10