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satela [25.4K]
3 years ago
14

Can someone please help me with this question? ASAP thank you!

Physics
1 answer:
Assoli18 [71]3 years ago
8 0

did you get the answer

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On a foggy day, you are driving at 70 mph and Granny is driving at 50 mph. As you try to pass her, you both see an overturned tr
Sergio039 [100]

Answer:

20 mph

Explanation:

Granny stopped from 50mph,

Her deceleration per unit time is

a = 50 - 0 = 50m/hr^2

This is also the amount of deceleration you experience per unit time (because both cars are identical), therefore your final speed with which you collide with the truck will be,

50 = 70 - v

V = 70 - 50 = 20mph

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Which wave on the EMR spectrum has the longest wavelength?
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Radio waves, infrared rays, visible light, ultraviolet rays, X-rays, and gamma rays are all types of electromagnetic radiation. Radio waves have the longest wavelength, and gamma rays have the shortest wavelength.

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What are the name of variables that do not change through out and experiment?
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The answer is C

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Bob is pulling a 30kg filing cabinet with a force of 200N , but the filing cabinet refuses to move. The coefficient of static fr
vredina [299]

Answer:

2.0\cdot 10^2 N

Explanation:

The cabinet does not move: this means that the net force acting on it is zero.

Along the horizontal direction, we have two forces:

- The push exerted by Bob, F = 200 N, forward

- The frictional force, F_f, which acts in the opposite direction (backward)

Since the net force must be zero, we have:

F-F_f = 0

So solving the equation we can find the magnitude of the friction force:

F_f = F = 200 N=2.0 \cdot 10^2 N

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4 years ago
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