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dusya [7]
2 years ago
15

A refrigerator has a mass of 88 kg. What is the weight of the refrigerator?

Physics
1 answer:
posledela2 years ago
6 0

Answer:

I don't think the information is complete

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Put a ball on the floor what forces are acting on it
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Answer: Gravity

Explanation: Gravity is pulling down on the ball, making it stay on the floor

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3 years ago
4. Which scientist proposed the theory that the Moon formed from fission? (5 points)
NeTakaya
The answer would be B, George Darwin :)
7 0
3 years ago
"In a Young’s double-slit experiment, the separation between slits is d and the screen is a distance D from the slits. D is much
san4es73 [151]

Answer:

The number of bright fringes per unit width on the screen is, x=\dfrac{\lambda D}{d}      

Explanation:

If d is the separation between slits, D is the distance between the slit and the screen and \lambda is the wavelength of the light. Let x is the  number of bright fringes per unit width on the screen is given by :

x=\dfrac{n\lambda D}{d}

\lambda is the wavelength

n is the order

If n = 1,

x=\dfrac{\lambda D}{d}

So, the the number of bright fringes per unit width on the screen is \dfrac{\lambda D}{d}. Hence, the correct option is (B).

6 0
2 years ago
3. The direction of the centripetal force acting on a ball on a string being spun in a circle around a person is
ruslelena [56]

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4 0
3 years ago
Read 2 more answers
A hot–air balloon is moving at a speed of 10.0 meters/second in the +x–direction. The balloonist throws a brass ball in the +x–d
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Answer:

Option (D) is correct.

Explanation:

The balloon lands horizontally at a distance of 420 m from a point where it as released.

Velocity of air balloon along +X axis =10 m/s

velocity of ball=4 m/s along + X axis

the velocity of balloon gets added to the velocity of ball. So the resultant velocity of the balloon=10+4 = 14 m/s

time taken= 30 s

The distance traveled is given by d= v t

d= 14 (30)

d= 420 m

Thus the balloon lands horizontally at a distance of 420 m from a point where it as released.

6 0
3 years ago
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