A person drives 70 km/h in 1 hour to the east, then 80 km/h for another hour to the east. What

was the average velocity for those 2 hours?

The ΔG of a reaction would be at the minimum when ... Group of answer choices the equilibrium constant is equal to 1 (i. e., the reactant and product concentrations are always equal).

How many significant figures should be the product 62.25 x 37.4 have a 2 b 3 c 4 d 7

Your friend Nader is standing 400,000 meters away. If you send a message to him using radio waves, how long will it take for him to receive it? Round to four decimal places.

A student hears a police siren. What would change the frequency that the student hears? Check all that apply. * 1. if the student walked toward the police car 2. if the student walked away from the police car 3.

n the calibration step of a thermochemistry experiment, a current of 124/text{ mA}124 mA, from a 24.0/text{ V}24.

A 1000 kg satellite and a 2000 kg satellite follow exactly the same orbit around the earth. What is the ratio F1/F2 of the gravitational force on the first satellite to that on the second satellite?

How does the skater's kinetic energy changes as he moves down the ramp?

A 50.0kg bicyclist on a 10.0kg bicycle speeds up from a 5.00m/s to 10.0m/s

How tightly does mass need to be compacted in order to become a black hole? (2 words)

2NaClO = 2NaCl + O2 what kind of reaction is happening