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natita [175]
3 years ago
5

Please help in this question!! I will mark brainlest​

Physics
1 answer:
LUCKY_DIMON [66]3 years ago
4 0

Answer:

im not too sure about that all i know is history

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A certain fm radio station broadcasts electromagnetic waves at a frequency of 125000 hertz. these radio waves travel at a speed
faltersainse [42]
Speed = frequency x wavelength
300,000,000 = 125000 x wavelength
wavelength = 125000/300,000,000 =4.16667x10^-4 meters
or 4.1667E-4 meters
4 0
3 years ago
Why is deforestation a serious global environment problem
julia-pushkina [17]

Answer:

we all know that deforestation is when tress are cut down but this may cause cardio dioxide to go up into the atmosphere and this may cause the rise in sea level and temperates tend to fluctuate

Explanation:

I'm just that smart yah dig

5 0
3 years ago
a 10.0 kg ball falling at 10.0 m/s hits a mattress and comes to a complete stop in 1 s. what force does the mattress exert to st
eimsori [14]
Using Newton's second law;

F = ma, where m = mass, a = acceleration or deceleration

a = Δv/t = (v-u)/t, but v= 0, u = 10 m/s, t = 1.
Then,
a = (0-10)1 = -10 m/s^2

Substituting;
F = ma = 10*-10 = -100 N

The  mattress exerts 100 N to stop the ball.
3 0
3 years ago
WILL GIVE BRAINLIEST! QUICK PLEASE HELP!!!
Fantom [35]

Answer:

mass and location

Explanation:

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4 0
3 years ago
A car of mass 1800 kg can be just be lifted. What is the least force that the electromagnet must use to lift the car? (1 g = 10
Doss [256]

Answer:

<h2>f=a×m</h2>

m=1800kg

1800000g×10N/kg

18000000N force is required to life the car

8 0
3 years ago
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