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Ber [7]
3 years ago
15

PLZZ someone

Physics
2 answers:
Elena L [17]3 years ago
6 0
The answer yr looking for would b true!
Alinara [238K]3 years ago
5 0

The answer to this question would be true they are about as simple as a gathering of stars can be massive bulbs roughly Spherical in shape

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A motorist enters a freeway at 45 km/h and accelerates uniformly to 99 km/h. From the odometer in the car, the motorist knows th
Marat540 [252]

Answer:

a)  19440 km/h²

b) 10 sec

Explanation:

v₀ = initial velocity of the car = 45 km/h

v = final velocity achieved by the car = 99 km/h

d = distance traveled by the car while accelerating = 0.2 km

a = acceleration of the car

Using the kinematics equation

v² = v₀² + 2 a d

99² = 45² + 2 a (0.2)

a = 19440 km/h²

b)

t = time required to reach the final velocity

Using the kinematics equation

v = v₀ + a t

99 = 45 + (19440) t

t = 0.00278 h

t = 0.00278 x 3600 sec

t = 10 sec

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3 years ago
Which factor would reduce the size of a forest population
zhuklara [117]
C. Lack of mates. If they cannot reproduce enough, their size will reduce.
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2 years ago
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The thermal expansion of a solid is caused by:
Shkiper50 [21]

Answer:

C

Explanation:

The increase in the distance between equilibrium positions for the vibrating atoms.

6 0
3 years ago
. Find the buoyant force exerted on a ball with radius of 2 meters, when the ball is entirely immersed in the water.
almond37 [142]

Explanation:

Buoyancy force is equal to the weight of the displaced fluid:

B = ρVg

where ρ is the density of the fluid,

V is the volume of the displaced fluid,

and g is the acceleration due to gravity.

The fluid is water, so ρ = 1000 kg/m³.

The volume displaced is that of a sphere with radius 2 m:

V = 4/3 π r³

V = 4/3 π (2 m)³

V ≈ 33.5 m³

The buoyancy force is therefore:

B = (1000 kg/m³) (33.5 m³) (9.8 m/s²)

B ≈ 328,400 N

Round as needed.

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The basic unit of structure and function in all living things is the _____?
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Cell membrane, perhaps?
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