Answer:
c.The deeper you dive into the atmospheres of the outer planets, the higher the temperature
Explanation:
At the top of the atmosphere , the temperature ranges between 50 to 200K
which may go up to 300K deep inside the atmosphere. The heat generally is created due to collision of gas molecules inside the atmosphere.
First we know that Earth moves around the sun once per year.
If Radius = 150,000,000Km, then the circumference of Earth's
orbit must be:
C = 2 x R x Pi
C = 2 x 150,000,000 x 3.141529
C = 942,458,700Km per year
Divide that by 365.25 days, and we get:
C = 2,580,311Km per day
Further divide that by 24 hours and we get:
C = 107,512Km / hour
There are 3600 seconds in an hour so:
C = 29.86 km / second
Answer:
Given:
Initial speed (u) = 22 m/s
Final speed (v) = 0 m/s (Rest)
Time taken (t) = 4 seconds
To Find:
Distance travelled by car (s)
Explanation:
From equation of motion of object moving with uniform acceleration in straight line we have:
By substituting value of v, u & t in the equation we get:
Distance travelled by car (s) = 44 m
Answer:
<em>W= 47</em>
Explanation:
Given:
m = 72 kg
F = 165 N along horizontal
s = 2.8 m
\mu = 0.21
The net force acting on the box is
W= 165-(0.21 * 72 * 9.81)) * 2.8
W= 46,68384
W= 47
Newton's first law says that an object at rest will stay at rest, while an object in motion will stay in motion unless acted upon by an outside force.
A great example of this is a ball sitting on the ground. The ball will not move until some force is used on it, rather that be you kicking it, the wind blowing it, etc. Once that force is used against it, the ball will continue to move until gravity, air resistance, a friction bring it to a stop.