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kompoz [17]
2 years ago
14

A person pushes a 50kg box to the right with 100N of force at a constant velocity of 5m/s. Calculate the coefficient of friction

between the box and the surface.
Physics
1 answer:
Anna11 [10]2 years ago
8 0
The weight of the box is 50x9.8 = 490 N. The force of friction is 100N. F= μΝ so coefficient = 100/490 = 0.20
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*NEED ANSWER QUICKLY!*
umka21 [38]
You would have to put the number together
8 0
2 years ago
A bird takes off from the tree and after 5 s is flying at a speed of 10 m/s. Calculate
Volgvan

Answer:

10miles/second

Explanation:

Change in velocity of the bird is expressed as the difference between the final velocity and initial velocity of the body.

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Since the bird takes off from the tree, the initial velocity of the bird = 0miles/sec

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6 0
2 years ago
Starting from rest, a 2-m-long pendulum swings from an angleof
Andrews [41]

Answer:

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Explanation:

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this means the vertical distance from this initial point to the lowest point is simply:

L_3 = L_2 - L_1 = 2 - 1.95 = 0.05 m

As the pendulum travel (vertically) from the initial point to the bottom point, its potential energy is converted to kinetic energy:

E_p = E_k

mgh = mv^2/2

where m is the mass of the pendulum, g  = 10 m/s2 is the constant gravitational acceleration, h = 0.05 is the vertical it travels, v is the pendulum velocity at the bottom, which we are trying to solve for.

The m on both sides of the equation cancel out

v^2 = 2gh = 2*10*0.05 = 1

v = \sqrt{1} = 1 m/s

so D is the correct answer

5 0
3 years ago
Where are warm air vents usually located in a forced air heating system
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The system is located in the HairyFunyon aka near the floor
8 0
3 years ago
Read 2 more answers
33 POINTS How can I get the temperature? SOUND SPEED 340 m/s = 331 m/s + (0,6xTemperature)
inessss [21]

(340-331)/0.6 = temp

9/0.6

90/6

30/2

15 degrees

6 0
3 years ago
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