Which of the following is an explanation of how the natural world works, based on experimentation?

An analysis

A law

An opinion

A theory

Give an order-of-magnitude estimate for the time in seconds of a year

Calculate the maximum acceleration of a car that is heading up a 4º slope (one that makes an angle of 4º with the horizontal) under the following road conditions.

39. Three 12 a resistors are connected in parallel and then connected to a 6.0 V battery. Find the resulting current. Show your work. This is a two part question. 40. The devices and outlets in each circuit in a household are wired in parallel.

convert watts to hpThe headlights of a moving car draw about 9 A from the 12 V alternator, which is driven by the engine.

An elevator is accelerating upwards at 3m/s. It has a mass of 300k. What is the net force (in Newton's) in the y-direction

You are standing outside during the daytime. How can you see a blade of grass? A. Light is produced by your eyes and travels out to the grass. B. Light is produced by the grass and travels straight to your eyes. C.

Are cosmic rays and gamma rays invisible or do they have color?

What element has the lowest electronegavity?

Identify two different ways you can make a yellow spotlight for a theater stage

Ian walks 2 km to his best friend's house, then walks 0.5 km to the library. He then makes a 2.5 km walk home. The entire walk took him 3 hours. What is his average speed in km/h? SHOW YOUR WORK!