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Vsevolod [243]
3 years ago
10

Why is it important that a satellite in orbit be above the earth's atmosphere?

Physics
1 answer:
Montano1993 [528]3 years ago
6 0

Explanation:

A stone is thrown upward neglecting air resistance. ... Why is it important that a satellite remain above Earth's atmosphere? The air resistance will slow it down and burn it. What happens to a satellite close to Earth's surface if it is given a speed exceeding 11.2 km/s?

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The pin symbolizing the greenhand ffa degree is made of what type of metal and why
max2010maxim [7]
The Greenhand degree is for first year or freshmen high school students. To receive the Greenhand degree, affiliates must have acceptable plans for a Supervised Agricultural Experience Program (SAEP) and make evident knowledge of the principle, code of ethics, motto, salute emblem, official dress, and important dates in FFA history. The Greenhand degree pin is made out of bronze for its strength and stability or durability.
5 0
4 years ago
A 150 kg line backer sacks the 120 kg quarterback. With what force is the quarterback sacked if the line backer has an accelerat
Gekata [30.6K]

Answer:

The force required to move the quarterback with linebacker is <u>1215 N</u>

Explanation:

\text { Mass of linebacker } \mathrm{m}_{2}=150 \mathrm{kg}

\text { Mass of quarterback } \mathrm{m}_{2}=120 \mathrm{kg}

\text { Moved at an acceleration }(a)=4.5 \mathrm{m} / \mathrm{s}^{2}

Using Newton's second law, it is established that  F = Ma

Where F is net force acting on the system, a is the acceleration and M is mass of the two object \left(m_{1}+m_{2}\right)

Now consider both \mathrm{m}_{1} \text { and } \mathrm{m}_{2}as a system, so net force acting on the system is \text { Force }=\left(m_{1}+m_{2}\right) a

Substitute the given values in the above formula,

\text { Force }=(150+120) \mathrm{kg} \times 4.5 \mathrm{m} / \mathrm{s}^{2}

\text { Force }=270 \mathrm{kg} \times 4.5 \mathrm{m} / \mathrm{s}^{2}

Force = 1215 N

<u>1215 N </u>is the force required to move the quarterback with linebacker.

5 0
4 years ago
A crate weighing 1000 Newton's needs to be lifted at a constant speed from the ground to a loading dock 1.5 meters high in 5.0 s
miskamm [114]

Answer:

the Power required is 300 W

Explanation:

We know that the definition of work is given by the following expresion:

W=F*d

the distance is 1.5 meters and the Force is equal to 1000 N.

Replacing this values in the work expresion

w= 1000 *1.5 = 1500 J

And the power is equal to the amount of work done in a given time, therefore we have:

Power = \frac{work}{time} \\

Time in seconds

Power = 1500/5\\\\Power = 300 watts

3 0
3 years ago
What do ocean waves and sound waves have in common?
Virty [35]
Ocean waves and sound waves are : mechanical wave. A and B aren't right at all. and C is  wrong because they aren't electromagnetic.
Mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium.

Hope this help

4 0
4 years ago
Read 2 more answers
A 2-kg bowling ball rolls at a speed of 10 m/s on the ground.
liberstina [14]
It's kinetic energy as the ball the ball isn't raised above the ground it does not have any gravitational potential energy. 
To find the kinetic energy of the ball you will have to use the formula:
KE=0.5 x m x v squared
m being mass and v being velocity 
so the calculation is:
0.5 x 2 x 10 x 10= 100J
8 0
4 years ago
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