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likoan [24]
3 years ago
8

can someone please answer my last question I posted? On my last post? My hw is due tomorrow and I’m confused.

Physics
1 answer:
Aleonysh [2.5K]3 years ago
3 0
Yes I will, I’m going right now
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A 2500-kg car is being pushed up a hill at an angle of 35 degrees. Determine the gravitational
velikii [3]

Answer:

The force that pulls the car down is Wₓ = 14052.6 N and the one that pushes the car up is F = 26552.6 N

Explanation:

For this exercise we will use Newton's second law, let's set a reference system where the x axis is parallel to the plane, in the adjoint we can see the forces in the system.

           sin  35 = Wₓ / W

            cos 35 = W_y / W

            Wₓ = W sin 35

            W_y = W cos 35

            Wₓ = 2500 9.8 sin 35

             Wₓ = 14052.6 N

let's write the equations for each axis

and

Y axis  

       N-W_y = 0

       N = W_y

X axis  

       F -Wₓ = m a

       F = Wₓ + m a = mg sin 35 + m a

       F = m (a + g sin 35)

   

let's calculate

       F = 2500 (5 + 9.8 sin 35)

       F = 26552.6 N

The force that pulls the car down is Wₓ = 14052.6 N and the one that pushes the car up is F = 26552.6 N

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3 years ago
Two sound waves of equal amplitude interference so that compression of one wave falls on the rarefaction of the other. Which sta
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<span>A. No sound is heard 
A*sin(wt)+(-A)*sin(wt)=0 - no sound

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A 0.850 kg mass is placed on a
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Answer:

Picture

Explanation:

I am trying to solve this Q

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A net force of 25N causes an object to accelerate at 4m/s^2. what is the mass of the object?
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Answer:

6.25 kg

Explanation:

Fnet=ma

m=Fnet/a

m=25/4

m=6.25kg

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Use the vocabulary in the Word Bank to complete the following explanation.
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