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Vikentia [17]
2 years ago
9

Food and electricity are the examples of_________________​

Physics
2 answers:
mash [69]2 years ago
4 0

Answer:

sources of energy

lisov135 [29]2 years ago
4 0

Answer:

energy

Explanation:

hope this is the right answer

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What is the weight of an astronaut who has a mass of 90 kg on the moon? (Note: acceleration due to gravity of the moon is 1.62 N
motikmotik

Answer:

W = 145.8 [N]

Explanation:

To solve this problem we must remember that weight is defined as the product of mass by gravity, in this case lunar gravity.

W = m*g

where:

m = mass = 90 [kg]

g = gravity acceleration = 1.62 [kg/m²]

W = 90*1.62

W = 145.8 [N]

8 0
3 years ago
Where else could Snell’s law be useful in determining the path of a light ray in your everyday life?
Musya8 [376]

Answer:

Contact glasses.

Explanation:

-Anytime you put on a pair of glasses, or see light bend through a glass of water or a prism, this rule is in action.

-In short, Snell's law governs the angle by which electromagnetic radiation such as light refracts, or changes direction, as it passes from one material to another and slows down.

6 0
3 years ago
A 100 W engine runs for 1 minute. How much work does it do?
Svet_ta [14]

d 6000 j because every second multiplied by that would equal out to be 6000

\

4 0
3 years ago
Read 2 more answers
Muscles that are fatigued ____.
ankoles [38]

Answer: Muscles that are fatigued <u>WEAK.</u>

3 0
3 years ago
A 700-kg car, driving at 29 m/s, hits a brick wall and rebounds with a speed of 4.5 m/s. If the car was in contact with the wall
Alinara [238K]

Answer:

<h2>57166.6N</h2>

Explanation:

Step one:

given data

mass=700kg

initial velocity u=29m/s

final velocity=4.5m/s

time t= 0.3second.

Step two:

The expression for the momentum is given as

FΔt=mΔv

make F subject of the formula

F=mΔv/Δt

Substitute our given data we have

F=700(29-4.5)/0.3

F=700*24.5/0.3

F=17150/0.3

F=57166.6N

the force is 57166.6N

6 0
2 years ago
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