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zheka24 [161]
3 years ago
7

Help on the blank problem?

Physics
1 answer:
Sindrei [870]3 years ago
8 0

Answer:

0.03 s

Explanation:

The maximum force is 90 N, and the mass is 0.2 kg, so we can find the deceleration:

F = ma

-90 N = (0.2 kg) a

a = -450 m/s²

The initial velocity is 14 m/s, and the final velocity is 0 m/s, so the time is:

v = at + v₀

0 m/s = (-450 m/s²) t + 14 m/s

t = 0.03 s

The fastest she can slow it down to a stop without breaking it is in 0.03 s.

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What is the acceleration of the 698 kg car that experiences a force of 2410 N?
Nostrana [21]

Hey there!

If you're working with Newton's  Laws / Acceleration, the formula would mostly like look like this

F= MA or you could say → A = \frac{F}{M}

While the F variable represents net    forces of your car  and the m represents the mass of the car mass

Denominator: 2,410

Numerator: 698

Your equation: \frac{2410}{698} ( if you simplify that ←) then you have found your result!

Answer: \boxed{C) 3.45 m/s^2}

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)


7 0
3 years ago
Choir members are traditionally grouped into four main vocal registers: bass,
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Answer:

The bass has the lowest frequency ,it only causes vibrations but at a lower frequency

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3 years ago
If an object is 16.76 cm in front of a convex mirror that has a focal length of 67.1 cm, how far behind the mirror will the imag
aniked [119]

F = focal lenght = 67.1 cm

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1/67.1 = -1/16.76 + 1/u

1/67.1 + 1/16.76 = 1/u

u = 13.41

7 0
1 year ago
Nhat is a difference between a law and a hypothesis?
V125BC [204]

Answer:A hypothesis is a limited explanation of a phenomenon; a scientific theory is an in-depth explanation of the observed phenomenon. A law is a statement about an observed phenomenon or a unifying concept, according to Kennesaw State University. ... However, Newton's law doesn't explain what gravity is, or how it works

Explanation:

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4 years ago
What subatomic particle determines the identity of an element
FinnZ [79.3K]

Answer:

Proton

Explanation:

Proton is a subatomic particle and determines the identity of an element. each element is identified by its atomic number. In an element, the number of protons in the nuclei of the atoms of the element is same as the atomic number of that element and this number is different for each element. for example, Boron has 5 protons in its nuclei, hence the atomic number of the element is 5.

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