What is the significance of Einstein's famous equation E = mc2?

Energy is not related to mass.

Mass can be destroyed.

Energy can be destroyed.

Mass and energy can convert to one another.

The number of electorn is morn than proton in nuclie. why?

In a two-coil system, the induced potential difference in the secondary coil depends on

Your electricity bill says 834-kWh of consumption. With this amount of energy, how many 59-W light bulbs can be powered for an average of 7 hours?

The energy obtained by an object when it gains or loses electrons is what?

A cat jumps horizontally from a couch with a speed of 2.2 m/s. if the cat takes 0.3 seconds to land, how far from the couch does the cat land?

Describe how the competition between invasive and native species might affect a food web

Which vector should be negative? any vector whose magnitude is less than 1 a displacement in the direction North any vector whose magnitude is greater than 1 the velocity of a falling object

Acceleration is a scalar quantity true or false

Find a numerical value for rhoearth, the average density of the earth in kilograms per cubic meter. Use 6378km for the radius of the earth, G=6.67*10-11m3 / (kg⋅s2), and a value of g at the surface of 9.80m/s2.

The driver of a car traveling at 32 m/s applies the brakes and undergoes a constant deceleration of 2.25 m/s^2.