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GuDViN [60]
3 years ago
10

Explain why a stopclock will give a poor result in a instanteouse speed experiment

Physics
1 answer:
Arturiano [62]3 years ago
7 0
It takes a while to stop it
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What does weight require?
kherson [118]

Answer:

kg

Explanation:

easy question to be honest

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3 years ago
A man ran the 200m race within 19.19 seconds. Calculate the speed of the man during the race
natta225 [31]

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around 23 miles per hour

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Zach, whose mass is 90 kg , is in an elevator descending at 12 m/s . the elevator takes 3.0 s to brake to a stop at the first fl
sweet-ann [11.9K]
Finding out the acceleration 12/3 = 4m/s^2
thus it is descending so the actual acceleration would be 9.8-4 = 5.8 m/s^2
the weight will be 90*5.8 = 522 N
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7 0
3 years ago
Read 2 more answers
Now imagine a person dragging a 50 kg box along the ground with a rope, as
ANTONII [103]

Answer:

The coefficient of static friction between the box and floor is, μ = 0.061

Explanation:

Given data,

The mass of the box, m = 50 kg

The force exerted by the person, F = 50 N

The time period of motion, t = 10 s

The frictional force acting on the box, f = 30 N

The normal force on the box, η = mg

                                                     = 50 x 9.8

                                                     = 490 N

The coefficient of friction,

                            μ = f/ η

                               = 30 / 490

                               = 0.061

Hence, the coefficient of static friction between the box and floor is, μ = 0.061

7 0
3 years ago
a sample of a gaseous substance changes into liquid. This process is called (blank) and it takes place when heat is (blank) a ga
Delicious77 [7]
Process is called condensation and it happens when heat is removed from gaseous system.
8 0
3 years ago
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