Two helium atoms each have a mass of 6.64 x 10-27 kg. If they are separated by one micrometer (a millionths of a meter = 1.00 x 10-6 m), how many Newtons of gravity force will exist between them?

Juan created a chart to him study for a test. which headings best complete the chart? x: transparent objects y: opaque objects x: opaque objects y: transparent objects x: high frequency waves y: low frequency waves x: low frequency waves y: high frequency waves

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

Which two particles are found in the center of an atom