You drop a rock off of a building. It takes 4.5s to hit the ground. How tall is the building?

A trough is filled with a liquid of density 810 kg/m3. The ends of the trough are equilateral triangles with sides 8 m long and vertex at the bottom. Find the hydrostatic force on one end of the trough. (Use 9.

Earth's polar ice caps, sea ice, glaciers, snow cover, and permafrost make up which sphere?

Determine the total moment of inertia of a merry-go round with 5 children sitting on it. Of the five children, four are seated at the edge of the merry-go-round, and the fifth child is sitting exactly at the center.

Which jet stream affects weather in Antarctica? A. the northern subtropical jet stream B. the southern subtropical jet stream C. the northern midlatitude jet stream D. the southern midlatitude jet stream

A curve has a radius of 50 meters and is banked 5 degrees. The road is covered with ice and is frictionless. What is the maximum speed, in mph, a car can travel and negotiate the curve? A.) 15.65mph B.) 25.00mph C.) 65.00mph D.) 6.55mph E.

A conductor, with outer surface labelled a, contains a cavity, inner surface b. In this cavity there is a conducting sphere of radius r, and surface c. The sphere carries a charge of 1 C, while the conductor a charge of 2 C.

A spring (k = 790 N/m) has a length of 48 cm when zero net force is applied to it. What will its length be when 230 N of force is applied to stretch it? Question 3 options: 3.4 m 0.77 m 3.9 m 0.29 m

Inert gas used to make bright city lights True or False

A boulder on top of a cliff has a potential energy of 12400J. How high above is the boulder?

If the graph represents speed what is measured on the x and y axes