Which three statements about gravity and the formation of the solar system are true?
O A. Gravity caused the planets and Sun to have spherical shapes.
B. Gravity held the pieces of forming planets together.
C. Gravity pulled most of the matter into the center of the solar
system.
D. Gravity evenly distributed matter throughout the solar system.

Acentrifuge in a medical laboratory rotates at an angular speed of 3,700 rev/min. when switched off, it rotates through 54.0 revolutions before coming to rest. find the constant angular acceleration (in rad/s2) of the centrifuge. your response is within 10% of the correct value. this may be due to roundoff error, or you could have a mistake in your calculation. carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. rad/s2

The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?

In general what determines whether atoms will form chemical bonds?