Physics, 18.11.2019 21:31 athenajames1221

What would happen if the earth’s mantle was completely solid? why do you think so?

Answers: 2

Show answers

Answers

The earth's mantle is comprised of silicate rocks that are usually in the form of liquid. Its thickness is nearly 2,900 kilometres, forming about 85% of the total volume of the Earth. One of the main significance of this layer is the formation of the convection current, that initiates due to the heat energy provided from the interior of the earth, as a result of which the lithospheric plates above the layer of asthenosphere move from one place to another with respect to a fixed pole.

But, if the earth's mantle was entirely solid in nature then these heat energy from the core of the earth would not be sufficient to form these convection currents, due to which the plates would have not moved and there would have existed only a large super-continent and a huge water body.

Answer from: Quest

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

Answer from: Quest

Is a vector quantity that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

Another question on Physics

Physics, 21.06.2019 23:00

Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)

Answers: 3

Answer

Physics, 22.06.2019 09:00

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

Answers: 1

Answer

Physics, 22.06.2019 14:30

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o

Answers: 1

Answer

Physics, 22.06.2019 16:30

The total amount of energy contained in an object