Two students are standing on a fire escape, one twice as high as the other. Simultaneously, each drops a ball.

If the first ball strikes the ground at time t, when will the second ball strike the ground?

An example of a metalloid, elements with properties between metals and non-metals, is: A. silicon B. iron C. oxygen D. copper

What two incidents led to the Spanish-American War? the capture of Manila the Spanish Ambassador wrote an insulting letter about President McKinley the battle of San Juan Hill explosion of the battleship Maine in Havana harbor

planet a has twice the mass of planet b. from this info what can we conclude about the acceleration due to gravity at the surface of plant a

How do elements move from one phase to another

You are driving north on a highway. then, without changing speed, you round a curve and drive east. does your velocity change? do you accelerate? explain.

A person with a mass of 75 kg skis from rest down a slope at an angle of 31 degrees. The coefficient of kinetic friction of his skis on the snow is 0.095. What is his acceleration?

A velocity vs. time graph for an object is shown. A graph titled Velocity versus Time shows time in seconds on the x axis, numbered 0 to 5, velocity in meters per second on the y axis, numbered 0 to 5. A line starts at the origin and ends at (5, 5).

Could someone explain how to calculate the frictional force if a side force is placed upon an object?

A wire that has a resistance of 1Ω is to be built from an aluminum block of volume 1 cm3 . How long is the wire going to be?

What is the difference between exercise and fitness