Suppose that superman wants to stop earth so it does not rotate. he exerts a force on earth at earth's equator tangent to its surface for a time interval of 1 year. the mass of earth is 5.98�1024 kg, the radius is 6.37�106 m. assume that earth is a solid sphere with its mass distributed uniformly. part awhat magnitude force must he exert to stop earth's rotation?

If you mix chlorine lithium and nickel together which two elements would be the most reactive

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?

This chart shows characteristics of three different types of waves. which statement is best supported by the information in the chart? wave x and wave y are mechanical waves, and wave z is an electromagnetic wave. wave x and wave y are electromagnetic waves, and wave z is a mechanical wave. wave x and wave z are electromagnetic waves, and wave y is a mechanical wave. wave x and wave z are mechanical waves, and wave y is an electromagnetic wave.