Hakeem throws a 11.5 g ball straight down from a height of 2.0 m. the ball strikes the floor at a speed of 7.8 m/s. what was the initial speed of the ball? assume that air resistance is negligible.

What is not an example of absorption?

A wire carrying a 32.0 A current passes between the poles of a strong magnet such that the wire is perpendicular to the magnet's field, and there is a 2.15 N force on the 3.00 cm of wire in the field.

After the discovery of Uranus, astronomers calculated its orbit and predicted its position in the sky using Kepler's laws of planetary motion, which had been known since the early 17th century.

Give an example when forces are balanced in Jenga

a car starts from rest and travels for 8 seconds with a uniform acceleration of 2.9 m/s^2. the driver then applies the brakes causing a uniform acceleration of - 1.7m/s^2. if the brakes are applied for 2.

They are generally thought to be blank naturally occurring emotions that are present from birth

If an aircraft is loaded 90 pounds over maximum certificated gross weight and fuel (gasoline) is drained to bring the aircraft weight within limits, how much fuel should be drained?

3. Shortwave radio is broadcast between 3.50 and 29.7 MHz, To what range of wavelengths does this correspond? Why do you suppose this part of the spectrum is called shortwave radio?

How does a star's temperature change as the star ages from a main sequence star to a red giant and from a red giant to a white dwarf?

What factors in the atmosphere seem to have the greatest effect in the amount of radiation received from the sun?