Which layer of earth is soild iron and nickel

A. crust

B. inner core

C. outer core

D. mantle

Why is the heating element placed near the bottom of the kettle

Which layer of earth are temperature and pressure greatest

Two identical billiards balls strike a rigid wall with the same speed but at diffrent angle and gets reflected with out change in speed what is (i) the ratio of the magnitudes implulse generated?

What is the refraction index of a medium? -the ratio of the velocity of light in the medium over the velocity of light in a vaccum -the ratio of the velocity of light ina vacuum over a velocity of light in the medium -the ratio of the angle of

Two equal resistors are connected in series with a 1.50V battery. In order to keep the current at 0.030 A, the resistors much each have a value of of what (two digits)

In an experiment, 108 J of work was done on a closed system. During this phase of the experiment, 79 J of heat energy was added to the system. What was the total change in the internal energy of the system?

J. J. Thomsons experiments provided evidence that an atom

How does our sun differ from most other main sequence stars?

A large body of air hats has similar properties of a temperature and moisture is a

An ice rink is 200 feet long and 85 feet wide. The four corners of the rink are rounded to a radius of 24 feet. What is the surface area of the rink? Round the answer to the nearest square foot.