Hour, a bicyclist travels 10 km north and then 6 km south. What is the average

In 1 hour, a bid

che bicyclist?

uth. What is the average velocity of

A 4 km/h

B. 4 km/h north

C. 16 km/h

D. 16 km/h north

If the distance between two objects is decreased to one fourth of the original distance how will the decrease change the force of attraction between the objects

A cannon with a muzzle speed of 1009 m/s is used to start an avalanche on a mountain slope. the target is 1950 m from the cannon horizontally and 808 m above the cannon.

Soccer 10 m/s stop 3 seconds

Which of the following statements correctly describes the law of conservation of energy? Group of answer choicesa. Mass cannot be created but it can be destroyed under extreme pressures. b.

What determines an object's velocity? A. speed and direction B. speed at a particular instant C. average direction over the duration D. direction at a particular instant

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