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alexira [117]
4 years ago
11

A launch vehicle gives the spacecraft enough force to reach ___________. (Select One Answer)

Physics
1 answer:
Marina CMI [18]4 years ago
6 0

-- The purpose of the launch vehicle is to give the spacecraft velocity,
not force.

-- The launch vehicle gives the payload the speed it needs, in the direction
it needs, to take it to wherever you want it to go. 

If it's a 'space'-craft, and perhaps you want it to stay in this neighborhood
for a while before sending it out on its long journey, you might launch it into
Earth orbit first.

The question is very broad.  If the payload is a TV satellite, then it would
be placed first into low Earth orbit, and only later raised to its operational,
geosynchronous orbit.  If the payload is a nuclear warhead, or a primitive,
deadly firecracker launched for resistance and fun from Gaza, then it would
be aimed to strike its ultimate destination by surprise and as soon as possible.

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What is the numeric value of a mole for atoms or molecules?
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Answer:

6.02×10²³

Explanation:

Mole measures the number of particles in a specific substance. The numeric value of a mole for atom or molecules is approximately 6.02×10²³ atoms or molecules.

5 0
4 years ago
In a series circuit, when you add more resistance, what will happen to the amount of current?
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The amount of current will increase since they are inversely proportional
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Calculate the Kinetic Energy of a block which is 30 kg . It is moving with a velocity of 20 m/ s to the left.
Ghella [55]
KE=1/2mass time velocity squared so 15kg x 20^2=6000
7 0
3 years ago
Suppose the maximum safe intensity of microwaves for human exposure is taken to be 1.39~\mathrm{W/m^2}1.39 W/m ​2 ​​ . If a rada
wolverine [178]

Answer:

0.763 m

Explanation:

Intensity I = power P ÷ area A of exposure (spherical area of propagation)

I = P/A

A = P/I

Power = 10.0 W

Intensity = 1.39 W/m^2

A = 10/1.39 = 7.19 m^2

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3 0
3 years ago
A child slides down a snow‑covered slope on a sled. At the top of the slope, her mother gives her a push to start her off with a
kirill [66]

Answer:

θ = 13.16 °

Explanation:

Lets take mass of child = m

Initial velocity ,u= 1.1 m/s

Final velocity ,v=3.7 m/s

d= 22.5 m

The force due to gravity along the incline plane = m g sinθ

The friction force = (m g)/5

Now from work power energy

We know that

work done by all forces = change in kinetic energy

( m g sinθ - (m g)/5 ) d = 1/2 m v² - 1/2 m u²

(2  g sinθ - ( 2 g)/5 ) d = v² -  u²

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(20 sinθ - ( 20)/5 ) 22.5 = 3.7² -  1.1²

20 sinθ - 4 =12.48/22.5

θ = 13.16 °

5 0
3 years ago
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