The ice cap at the North Pole may be 1000 m thick, with a density of 920 kg/m3. Find the pressure at the bottom and the corresponding melting temperature.

What vibrates when an aeroplane flies over our house?

When an object is lifted 8 meters off the ground, it gains a certain amount of potential energy. If the same object is lifted 16 meters off the ground, its potential energy is A. four times as much. B. three times as much. C. twice as much. D.

Find a unit vector that has the same direction as the given vector. - 3i 7j

Scientists believe that Earth is becoming warmer. This idea will become unacceptable over time if it is not discussed in a scientific forum scientific evidence supports a new idea scientists propose alternative hypothesis new instruments are

The layer of the earth where mantle convection occurs and on which the earth's crust resists is the? A. Outer core B. Asthenosphere C. Lithosphere D. Inner core

A small object moves along the x-axis with acceleration ax (t) = - (0.0320m/s3) (15.0s-t). At t = 0 the object is at x = - 14.0 m and has velocity v0x = 8.90 m/s. What is the x-coordinate of the object when t = 10.0 s?

Nitrogen and Hydrogen react to form ammonia (NH3). The reaction looks like this: Ammonia What is the ratio of nitrogen atoms to hydrogen atoms in ammonia? 1 to 2 1 to 3 2 to 1 3 to 1

Place the following types of electromagnetic radiation in order of increasing wavelength. ultraviolet light gamma rays radio waves Place the following types of electromagnetic radiation in order of increasing wavelength.

8. How does inertia act on an object that is moving in a circle? A. It causes the object to speed up as it moves. B. It causes the object to move along a straight path. C. It directs the object toward the center of the curve.

The leaves of a tree lose water to the atmosphere via the process of transpiration. A particular tree loses water at the rate of 3 x 10^-8 m^3/s; this water is replenished by the upward flow of sap through vessels in the trunk.