How many valence electrons does an atom of rubidium have?

During a race, four competitors of the same weight rode identical bicycles for 10 minutes. At 8 minutes, which bicycle was moving with the greatest velocity?

A constant horizontal force F is applied to a 5 kg box on a frictionless horizontal surface. The box starts from rest and moves 12 meters in 5 seconds.

A red cart of mass 4 kg slides to the right on a frictionless track with a velocity of 4 m/s. It collides with the stationary blue cart of mass 1 kg. After the collision, the blue cart has a velocity of 8 m/s.

In your circuit toolbox, you only have a collection of resistors (?1=100 Ω,?2=20 Ω,?3=10 Ω) and some switches that can be open or closed. Construct a circuit filling in all four boxes, such that the equivalent resistance between A and B is 8 Ω.

Which atom is most likely to accept the electrons to form from an ionic bond

A Blu-ray disc is approximately 11 centimeters in diameter. The drive motor of a Blu-ray player is able to rotate up to 10,000 revolutions per minute. (a) Find the maximum angular speed (in radians per second) of a Blu-ray disc as it rotates

A body has translatory motion if it moves along a

What is Nothing. (sorry i have been wondering this for a very long time)

What is the weight of a 15kg dog on earth?

Identify the scenario below as to whether they increase, decrease, or not change the frequency in which a string vibrates and thus change its pitch. Assume that no other changes are happening. 1. Tightening a string for greater tension 2.