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vichka [17]
3 years ago
13

A student uses a spring scale to exert a horizontal force on a block, pulling the block over a smooth floor. the student repeats

the procedure several times, each time pulling the block from rest through a distance of 1.0m. For which of the following graphs of force as a function of distance will the block be moving the fastest at the end of 1.0m.​
Physics
1 answer:
kozerog [31]3 years ago
7 0

... I would need to see the graphs, but if it helps, the material the block is made out of can cause the block to move slower or faster. Say a sandpaper block and a smooth wooden block were pulled at the same time, the sandpaper block would move slower than the wooden block because there would be more friction between the floor and sandpaper than the floor and a wooden block. Hope this helps!

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Hope this helps!

4 0
3 years ago
Why does the sky appears blue? ​
SashulF [63]

Explanation:

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3 0
4 years ago
On the Moon's surface, lunar astronauts placed a corner reflector, off which a laser beam is periodically reflected. The distanc
dimulka [17.4K]

Answer:

4.88 x 10∧-8 sec

Explanation:

7 0
3 years ago
3) Find the missing parts of the triangle (angle and/or sides).<br>​
oee [108]

Answer:

44.4°

Explanation:

Use SOH-CAH-TOA.

Sine = Opposite / Hypotenuse

Cosine = Adjacent / Hypotenuse

Tangent = Opposite / Adjacent

You're given an unknown angle, the adjacent side to that angle, and the hypotenuse.  So use cosine.

Cosine = Adjacent / Hypotenuse

cos A = 10 / 14

A = cos⁻¹(5/7)

A ≈ 44.4°

8 0
3 years ago
A car drives at a constant speed of 3m/s around a circle with radius 20m. What is the centripetal acceleration of the car
Kaylis [27]
Centripetal acceleration is the motion inwards towards the center of a circle. It is given by the square of velocity, divided by the radius of the circular path. 
ac = v²/r, where ac is the centripetal acceleration in m/s²
Therefore, 
Centripetal acceleration = 3²/20m
                           = 9/20m
                            = 0.45 m/s²
Thus, the centripetal acceleration is 0.45 m/s²
6 0
3 years ago
Read 2 more answers
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