What is used to find true north on a compass? a. equator c. magnetic declination b. prime meridian d. cardinal directions

What is 800,000,000 meters in scientific notation

How much force is needed to accelerate a 1000-kg car at a rate of 3 m/s squared

If the height of the ramp is increased then the marble's speed will be greater because gravity will have less resistance when pulling the marble to the ground.

The magnitude of the force involved in a certain collision (measured in newtons) is equal to the change in momentum (measured in kilogram meters/second). What is the time interval of the collision? A. 1.0 second B. 0.5 seconds C 2.0 seconds D. 2.

Which of the following is a sign of poor quality water? a. Zero turbidity b. A pH of 7.0 c. High phosphate content d. High dissolved oxygen

What is a lenticular (S0) galaxy? A galaxy with a disk and central bulge like a spiral galaxy, but with no spiral arms A galaxy with a smooth brightness profile, lacking the central bulge and disk of a spiral galaxy A spiral galaxy with fuzzy and

Which process causes wells on land to become saline, making them unusable for drinking water? A. Erosion B. Echo sounding C. Eutrophication D. Groundwater infiltration

A farmer uses a tractor to pull a 150 kg bale of hay up a 15∘ incline to the barn at a steady 5.0 km/h. The coefficient of kinetic friction between the bale and the ramp is 0.40. Part A What is the tractor's power output?

Identify the conditions for an elastic collision in a closed system. Check all that apply. Energy is conserved. Velocities may change. Momentum is conserved. Kinetic energy is conserved. Objects stick together after the elastic collision.

When the velocity of a mass on a spring is zero, the acceleration is at