Physics, 18.11.2019 06:31 lay879

Plz

the current theory of the structure of the

earth, called plate tectonics, tells us that the

continents are in constant motion.

assume that the north american continent

can be represented by a slab of rock 5850 km

on a side and 35 km deep and that the rock

has an average mass density of 2750 kg/m3

.

the continent is moving at the rate of about

3.2 cm/year.

what is the mass of the continent?

answer in units of kg.

005 (part 2 of 3) 10.0 points

what is the kinetic energy of the continent?

answer in units of j.

006 (part 3 of 3) 10.0 points

a jogger (of mass 78 kg) has the same kinetic

energy as that of the continent.

what would his speed be?

answer in units of m/s.

Answers: 1

Show answers

Another question on Physics

Physics, 22.06.2019 01:30

Answer as quick as ! kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energyb. motion energyc. sound energyd. thermal energy

Answers: 3

Answer

Physics, 22.06.2019 17:00

Amajor difference radio waves, visible light, and gamma rays is the of the photons, which results in different photon frequencies and wavelengths

Answers: 1

Answer

Physics, 22.06.2019 21:00

Acentrifuge in a medical laboratory rotates at an angular speed of 3,700 rev/min. when switched off, it rotates through 54.0 revolutions before coming to rest. find the constant angular acceleration (in rad/s2) of the centrifuge. your response is within 10% of the correct value. this may be due to roundoff error, or you could have a mistake in your calculation. carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. rad/s2

Answers: 1

Answer

Physics, 23.06.2019 08:00

Hunter is in lab. he clears a spot on his lab bench to start working. he also puts his lab coat and goggles on. he then identifies where all of the safety equipment is. he notices his station is next to the fume hood, which ventilates the chemicals stored there. the noise of the fume hood was bothersome, so hunter turned it off. which could be an error in his set-up? he should not turn off the fume hood. he should wait to put on his coat until after the directions are given. he should wait to put on his goggles until after the directions are given. he should not sit next to the fume hood.

Answers: 3

Answer

You know the right answer?

Plz

the current theory of the structure of the

earth, called plate tectonics...

Questions