Why do we feel depressed?

The buildup of plaque on the walls of an artery may decrease its diameter from 1.1cm to 0.75 cm. If the speed of blood flow is 15 cm/s, before reaching the region of plaque buildup, find the speed (in cm/s) of the blood flow.

123,876.3 in scientific notation

Hector has a piece of pure substance that reflects light and bends or dents when dropped. if he takes it to a factory that makes electrical wires it could? a. be turned into wire because non-metals are ductile but not shiny b.

Can someone tell me if I got the correct answer? A ball is thrown straight up into the air with an initial velocity of 15 m/s from a height of 1m above ground.

Approximately how many earthquakes are strong enough to be felt each year worldwide? a. 500 b. 1000 c. 10,000 d. 30,000 2. what isthe location on the surface directly above the earthquake focus called? a. epicenter b. fault c. magnitude d. moho

When Cannon and Washburn measured stomach contractions with a balloon, they found that?

An astronaut weighs 104 newtons on the moon, where the strength of gravity is 1.6 newtons per kilogram. What would she weigh on Mars?

A chemical bond formed when Adams share three pairs of electrons is A. an ionic bond B. a single bond C. a double bond D. a Triple bond

A 1100 kg car rounds a circular turn of radius 24.6 m. Of the road is flat and the coefficient of static friction between the tires and the road is 0.59, how fast can the car go without skidding

What is the momentum of a 15 kg tire rolling down a hill at 3 m/s? 5 kg • m/s 18 kg • m/s 45 kg • m/s 60 kg • m/s