A scientist is using an objective lens with 40X magnification on his microscope. If the ocular lens magnifies 10X, what is the total magnification being used to visualize the specimen?

A shopping mall has a length of 200 m and a width of 75 m. What is the area of the mall?

One of two nonconducting spherical shells of radius a carries a charge Q uniformly distributed over its surface, the other carries a charge - Q, also uniformly distributed. The spheres are brought together until they touch. A.

Donny is a wide reciever on the football team and he is practicing his routes. Coach keeps telling him that he needs to accelerate through the catch. Donny's precatch speed is 9 m/s and he is in the act of catching the ball for 1.1 seconds.

What is matter? A. matter is an element B. matter is anything that is made of atoms and that has mass C. matter is a compound D. matter is anything that is made of organic substances and is found on the earth

When four atomic orbitals are mixed to form hybrid orbitals, how many hybrid orbitals are formed?

What is the weight of atmosphere on Earth?

The noble gases are the least what of any elements on the periodic table

Why is friction between moving parts of machines undesirable?

What holds down earths atmosphere in its place?

A person catches a ball with a mass of 145 g dropped from a height of 60.0 m above his glove. His hand stops the ball in 0.0100 s. What is the force exerted by his glove on the ball? Assume the ball slows down with constant acceleration.