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musickatia [10]
3 years ago
12

The figure shows four forces exerted on a moving box, moving at a constant speed. If the box continues to move with the same spe

ed in the same direction, which statement is correct?
F1 is equal to F4 and F2 is greater than F3.
F1 is equal to F2 and F3 is greater than F4.
F3 is equal to F4 and F1 is equal to F2.
F3 is equal to F4 and F1 is less than F2.
Physics
2 answers:
34kurt3 years ago
4 0

Answer:

ryyyyyy

Explanation:

yrrr333 44 534535 grdfgsdfgsdssssd

pishuonlain [190]3 years ago
3 0
I think it’s C but I’m not sure
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5.An ice skater pushes against a wall with a force of 59 N. Ignoring friction, if the ice skater has
natali 33 [55]

Answer:

<em>Answer: (A) 0.75 m/s^2</em>

Explanation:

The Second Newton's law states that an object acquires acceleration when an external unbalanced net force is applied to it.

That acceleration is proportional to the net force and inversely proportional to the mass of the object.

It can be expressed with the formula:

\displaystyle a=\frac{F_n}{m}

Where

Fn = Net force

m  = mass

The ice skater pushes against a wall with a force of 59 N. The wall returns the force and the skater now has a net force of Fn=59 N that makes him accelerate. Being m=79 kg the mass of the skater, the acceleration is:

\displaystyle a=\frac{59}{79}

a = 0.75\ m/s^2

Answer: (A) 0.75 m/s^2

5 0
3 years ago
You are getting bored as you are stuck at home, and want to find out the effective 'spring constant' of random objects. You find
Luda [366]

Given Information:  

Mass of sock = 0.23 kg

Stretched length of sock = x = 2.54 cm = 0.0254 m

Required Information:  

Spring constant = k = ?

Answer:  

Spring constant = k = 88.82 N/m

Explanation:  

We know from the Hook's law that

F = kx

Where k is spring constant, F is the applied force and x is length of sock being stretched.

k = F/x

Where F is given by

F = mg

F = 0.23*9.81

F = 2.256 N

So the spring constant is

k = 2.256/0.0254

k = 88.82 N/m

Therefore, the spring constant of the sock is 88.82 N/m

4 0
3 years ago
Read 2 more answers
The gas used to fill party ballons contain only helium atoms .This make helium a(n).
Nata [24]

a gas

hope this is right

5 0
3 years ago
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1) A plane lands on a runway with a speed of 125 m/s, moving east, and it slows to a stop in 13.0 s. What is the magnitude (in m
valentina_108 [34]

Answer: 1) a = 9.61m/s² pointing to west.

             2) (a) Δv = - 37.9km/s

                  (b) a = - 6.10⁷km/years

Explanation: Aceleration is the change in velocity over change in time.

1) For the plane:

a=\frac{\Delta v}{\Delta t}

a=\frac{125}{13}

a = 9.61m/s²

The plane is moving east, so velocity points in that direction. However, it is stopping at the time of 13s, so acceleration's direction is in the opposite direction. Therefore, acceleration points towards west.

2) Total change of velocity:

\Delta v = v_{f}-v_{i}

\Delta v = -17.1-(+20.8)

\Delta v= -37.9km/s

The interval is in years, so transforming seconds in years:

v = \frac{-37.9}{3.15.10^{-7}}

v=-12.03.10^{7}km/years

Calculating acceleration:

a=\frac{-12.03.10^{-7}}{2.01}

a=-6.10^{7}

Acceleration of an asteroid is a = -6.10⁷km/years .

5 0
3 years ago
Give me 2 animals to combine their inherited traits
Kazeer [188]

Answer:

dogs and cats

Explanation:

hope this helps

7 0
3 years ago
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