Hi there!

The amount of kinetic energy directly relates to the mass of an object, since the heavier an object is, the more kinetic energy is needed to move it a certain distance.

Hope this helps!

3 0

3 years ago

Participants in the Iditarod must go 77 km, west from Rainy Pass to Rohn and then go 121 km, northwest from Rohn to Nikolai. Wha

iren2701 [21]

Answer:

8.6 km/hr

Explanation:

It looks like there's a lot of extra information here. If the question only asks about the trip from Rohn to Nikolai, then the only information that matters is that the distance between the two is 121 km & that Seavey did it in 14 hours. Don't let the extra numbers throw you off.

As for the math behind this - km/hr is a math equation in and of itself. Any ratio like that is a simple division problem. Just plug your numbers (121 km / 14 hr) into the formula (km / hr) to get your answer!

EDIT: for future questions where they don't label it as clearly... velocity = the distance divided by the time.

6 0

3 years ago

Which is the best method available for controlling placebo effects in both the

Viktor [21]

I’m guessing B, but I’m not for sure

3 0

3 years ago

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