Brad rides his bike 20 km. He covers the distance in 45 minutes (0.75 hours). What is his speed in kilometers per hour?

a. 15 km/hr

b. 27 km/hr

c. 44 km/hr

d. 9.0 km/hr

Helium does not usually react with other substances. does this mean that helium has no chemical reactions

The total pressure in an 11.4 L automobile tire is 45.0 psi at 16.0 ∘C. How much does the pressure in the tire rise if it warms to a temperature of 39.0 ∘C and the volume remains at 11.4 L

Which describes how fast-moving particles assist in transferring thermal energy to a cup after hot tea is poured into it? A) They replace slow-moving particles. B) They collide with slow-moving particles.

A rock group is playing in a bar. Sound emerging from the door spreads uniformly in all directions. The intensity level of the music is 116 dB at a distance of 2.82 m from the door.

What is the relationship between the line current i l and the phase current i1 in a balanced delta system?

Is it legal in Florida for a math teacher forces the kids to do push ups?

Acceleration is best defined as the rate of change of blank of an object

Zirconium has an atomic number of 40. How many neutrons are there in an isotope of zirconium-92?

If a glass is knocked off of a table that is 1.4m tall, how long does it take for the glass to hit the ground?

Imagine riding On a merry-go-round at the center. As you walk to the outer edge, the merry-go-round slows in order to conserve angular momentum. True or false?