A bird flies 2km to the south, then 0.2km to the north. What is the displacement of the bird?

A. 0.2km south

B. 2.2km

C. 1.8km

D. 1.8km south

Explain in your own words how chlorophyll makes a leaf look green

A physics student pushed a 50 kg load across the floor, accelerating it at a rate of 1.5 m/s2. How much force did she Apply?

When James sprayed liquid deodorant under his arm, the spot felt cold. Which sentence best explains why?

All of the following are types of telescope except

An experiment tests the effect of one thing on another using?

ll of mass m is thrown vertically upward with an initial speed of v0. It experiences a force of air resistance given by F = - kv, where k is a positive constant. The positive direction for all vector quantities is upward.

When combing your hair, you scuff electrons from your hair onto the comb. is your hair then positively or negatively charged? how about the comb?

A 4 kg mass is in free fall. What is the velocity of the mass after 11 seconds

Pascal's principle explains the viscosity of motor oil used in cars. True or False?

A (n) ... is a material that takes in a wave when the wave hits it