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Shkiper50 [21]
3 years ago
7

1. A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its

Physics
2 answers:
Amanda [17]3 years ago
5 0

Answer:tryna get points don't mind me

Explanation:

Bas_tet [7]3 years ago
4 0

Answer:

6 m/s²

Explanation:

Average acceleration = change in velocity / change in time

a = Δv / Δt

a = (22 m/s − 4 m/s) / 3 s

a = 6 m/s²

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If a hammer has a resistance arm of 3 inches and the effort arm is 15 inches. What is the mechanical advantage?
Sunny_sXe [5.5K]

Answer:

Option D

MA=5

Explanation:

Mechanical advantage is the  the ratio of the output force to the  input force hence

MA=\frac {Effort arm length}{Load arm length}

Substituting 15 inches for the effort arm length and 3 inches for the load arm length then we obtain the mechanical advantage as

MA=\frac {15}{3}=5

4 0
3 years ago
Where will the strongest force be excerted by the scissor blades to cut through a piece of material? Explain your answer.
asambeis [7]

Answer:

in the thick part of the scissors ✂️

Explanation:

because in physics simple machine called wedge the force applied in this thick area it have thine side used to split or piece objects

8 0
2 years ago
A radio station's channel, such as 100.7 fm or 92.3 fm, is actually its frequency in megahertz (mhz), where 1mhz=106hz and 1hz=1
lapo4ka [179]
<span>In order to determine the wavelength, we use the wave equation:

speed = frequency * wavelength

speed of light c = 3 x 10</span>⁸<span> m/s

Frequency f = 104.1 MHz = 1.041 x 10</span>⁸ Hz<span>

c = f</span>λ
λ = c / f

λ = 3 x 10⁸ / 1.041 x 10⁸
λ = 2.88 meters

The wavelength of the waves is 2.88 meters.
5 0
3 years ago
Should you be worried if a n eighteen wheeler truck is riding close behind your car? Explain why or why not. Please help me D:
xz_007 [3.2K]
For some reasons, no. If the driver looks focused and has experience, then it would be okay. Again, it could be dangerous if you bump into the truck, it would cause damage to you and your passengers. 

Mostly, I would agree with 'No'. :)
3 0
3 years ago
I need help answering this question in the photo (middle)
GalinKa [24]
I believe it is because of weight if Timmy is larger and bigger than Maria that would mean he would stop slower just because of his bodyweight pushing on the back of the skateboard while Maria is all those skinny and she doesn’t have as much weight as she can go farther
3 0
3 years ago
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