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Ostrovityanka [42]
3 years ago
13

HHHEEEEELLLPPPP!!!

Physics
1 answer:
SIZIF [17.4K]3 years ago
4 0
The correct answer is the Sun.i hope that helped! if you have any questions or concerns about the answer i gave you please let me know!!
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Explain why a balloon filled with air cannot float in the middle of a room without moving downwards but a helium balloon of the
ELEN [110]
Helium is less dense than normal air
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If a rigid body rotates about a fixed axis passing through its center of mass, the body's linear momentum is
dexar [7]

Answer:

The linear momentum is zero

Explanation:

Because

When a rigid body is rotating about a fixed axis passing through point O, the body’s linear momentum given as L = mvG

But VG= 0 so

Linear momentum is zero

6 0
3 years ago
What is the acceleration of a 1000 kg car subject to a 550 N net force
Xelga [282]

Answer:

The acceleration of a 1000 kg car subject to a 550 N net force = 0.55 m/s^2

Explanation:

Given:

F = 550 N

m = 1000 kg

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a = ?

Solution:

So by the equation by Newton's 2nd Law of Motion,

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a = 550 N/ 1000 kg

a = 0.55 m/s^2

Therefore,

The acceleration of a 1000 kg car subject to a 550 N net force = 0.55 m/s^2

PLEASE MARK ME AS BRAINLIEST!!!

4 0
3 years ago
What is the wavelength of a radar signal that has a frequency of 27 GHz? The speed of light is 3 × 108 m/s. Answer in units of m
marusya05 [52]

Explanation:

speed of light= c

wave length= L

frequency= f

c=Lf → L= c/f → L= 3 × 10⁸/ 27 × 10⁹ → L = 1/90 ≈ 0.011 m

4 0
2 years ago
The diagrams show objects' gravitational pull toward each
zaharov [31]
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