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oksian1 [2.3K]
3 years ago
11

Before a star is born, the matter that will become the star exists as a

Physics
2 answers:
vazorg [7]3 years ago
6 0

Answer:

The answer is D

Explanation:

I'm too lz to explain everything.

sorry.

zloy xaker [14]3 years ago
3 0

Answer:

The answer is D) cool, dark nebula

Explanation:

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The purpose of this lab is to explore the various ways to calculate projectile velocity using horizontal, vertical and angle inf
kolezko [41]

Answer: A projectile is any object in which the only force is gravity

Explanation: Equations on how to calculate projectile velocity is stated below:

The initial velocity Vo being a vector quantity, has two componentsVox and Voy  

V0x = V0 cos(θ) 

V0y = V0 sin(θ) 

The acceleration A is a also a vector with two components Axand Ay given

Ax = 0 and Ay = - g = - 9.8 m/s2 

Along the x axis the acceleration is equal to 0 and therefore the velocity Vx is constant  

Vx = Vocos(θ) 

Along the y axis, the acceleration is uniform and equal to - g and the velocity at time t is g

Vy = Vo sin(θ) - g t 

Along the x axis the velocity Vx is constant and therefore the component x of the displacement is

x = Vocos(θ) t 

Along the y axis, the motion is of uniform acceleration and the y component of the displacement is

y = Vo sin(θ) t - (1/2) g t2 

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As seen on the graph, the bus maintains a 9m/s speed for a majority of the trip to school.
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What is the net force needed to accelerate a 21.4 kg grocery sack upward at 1.5 m/s2?
marshall27 [118]

Answer:

32.1 N Please Give Brainliest

Explanation:

force = mass x acceleration

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2 years ago
The temperature of a body falls from 30°C to 20°C in 5 minutes. The air
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