Because light travels in a straight line and casts a shadow, Isaac Newton hypothesized that light is

A runner completes a 10 km run in 45 minutes. What is the runner speed in km/min

Wind erosion can be reduced by

The goose has a mass of 20.5 lblb (pounds) and is flying at 7.80 miles/hmiles/h (miles per hour). What is the kinetic energy of the goose in joules?

Write a short story that describes haw matter changes from one physical state to another

an object with a mass of 6.0 kg accelerates 4.0 m/s² when an unknown force is applied to it. what is the amount of force?

True or false a liquid does not have a definite shape, but it does have a definite volume.

HOw are ferns and trees alike and different and what would survive longer without rain fern or tree

1. Using Pj = e^-BE/Z in the Gibb's form for the entropy, show that F = kb Tln (Z), where F = U - TS is the Helmholtz free energy. Here Z= e^-BE is the canonical partition function ...

Modern oil tankers weigh over a half-million tons and have lengths of up to a quarter of a mile. Such massive ships require a distance of 5.0 km (about 3.0 mi) and a time of 22 min to come to a stop from a top speed of 26 km/h.

Suppose a yo-yo has a center shaft that has a 0.232 cm radius and that its string is being pulled. If the string is stationary and the yo-yo accelerates away from it at a rate of 1.50 m/s 2, what is the angular acceleration of the yo-yo?