The source of energy for all plants

How does earth's magnetic field behave through long periods of geologic time?

What is the frequency of blue light that has a wavelength of 473nm?

Who wins a tug-of-war one who pushes harder at the ground or pulls harder at the rope

When an ionic bond forms, the atom with the higher electronegativity is most likely to gain an electron. True False

A racing car's velocity is increased from 44 m/s to 66 m/s in 11 seconds. What is the acceleration? and what is the displacement?

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.

The ability of an object to vibrate by absorbing energy at its natural frequency is called?

A hurricane in the Gulf of Mexico to 15 hours to travel 360 kilometers. What is the average speed of this hurricane in kilometers per hour?