Emily drives her car 293.8 km with a
constant speed of
82 km/h and another
194.4 km with a
constant speed of
48 km/h. How much
time in total does she
take to travel these
distances?

Since there is already an answer i will try to go more into depth about how it was solved.

Explanation:

Using the basic equation S=d/t, where S is speed is in km/hr, d is distance in km, and t is time in hours, we can plug in the two separate pairs of known variables.

Pair 1:

S=d/t

82km/hr=293.8km/t

t=3.583hr

Pair 2:

S=d/t

48km/hr=194.4km/t

t=4.05hr

since the question is asking us for the total time, we can add these two together.

3.583hr+4.050hr=7.633hr

So she has traveled for a total of 7.633 hours

Hope this helps you understand the question a little more!

v=ir = 3x15 =45 v

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.