A ball is thrown straight up from the ground with an unknown velocity. It returns to the ground after 4.0seconds. With what velocity did it leave the ground?

Marco is conducting an experiment. He knows the wave that he is working with has a wavelength of 32.4 cm. If he measures the frequency as 3 hertz, which statement about the wave is accurate? a. The wave has traveled 32.4 cm in 3 seconds. b.

What bo you nmean by ABC rule?

There is only one piece of evidence that supports the mammal competition hypothesis. After viewing the details of this evidence and its relation to the mammal competition hypothesis, do you think this is a widely accepted conclusion in the

A car moving 14.4 m/s has 18,100 kg•m/s of momentum. What is its mass?

During fuel burn, the vertically launched terrier-sandhawk rocket had an acceleration of 300 m/s2 (about 30 times free-fall acceleration called 30 g). the fuel burned for 8.0 s. find the height of the terrier-sandhawk rocket at the end of fuel burn.

List 6 Physical properties List 6 Chemical properties

Anytime a scientific theory is challenged does it mean that its not a good theory

A toroidal inductor has a circular cross-section of radius a a. The toroid has N turns and radius R. The toroid is narrow (a≪R), so the magnetic field inside the toroid can be considered to be uniform in magnitude.

A quarterback throws a football with an initial velocity v at an angle θ above horizontal. Assume the ball leaves the quarterback's hand at ground level and moves without air resistance.

Taking the direction west to be positive, and east to be negative, what is the average acceleration of a jet ski that goes from rest to 10 m/s west in 4 seconds? A. 2.5 m/s2 B. 0.4 m/s2 C. - 0.4 m/s2 D. - 2.5 m/s2