Tim is riding a bike at a velocity of 10m/s north. As he starts to climb a hill, his velocity decreases to 5 m/s north. Is the acceleration positive or negative? Calculate the acceleration.

The amount of growth is the because its value changes according to the changes in the other variable hypothesis constant independent variable ) dependent variable

The power rating of a vacuum cleaner is 0.8 kilowatts. If you use the vacuum cleaner for 2.5 hours, how much energy does it use?

Each color has its own frequency and wave length? True or false

Describing an organism that does not depend on another for food or a place to live

What type of energy does a spinning turbine have? a. electrical energy b. nuclear energy c. thermal energy d. mechanical energy

You are in the lab and are given two rods set up so that the top rod is directly above the bottom one. The two straight rods 50-cm long are separated by a distance of 1.5-mm each with 15 A of current passing through them.

A girl is sitting in a sled sliding horizontally along some snow (there is friction present). The normal force supporting the girl and sled is 636 N. If the coefficient of static friction is 0.

Distinguish between nonsampling error and sampling error. Choose the correct answer below. A. Nonsampling error is the error that results because a sample is being used to estimate information about a population.

Which of the following is a "pull" factor? a. political freedom c. racial discrimination b. political persecution d. overpopulation

What can happen overnight to soil?