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Greeley [361]
3 years ago
12

I NEED THIS ASAP I WILL MARK YOU THE BRAINLIEST LINKS WILL BE REPORTED

Physics
1 answer:
vlada-n [284]3 years ago
4 0

Answer:

Mass:  Choices 1, 2, 4, 6

Weight: Choices 3, 5, 7, 8

Hope this helped! Please mark Brainliest if correct.

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Charge is actually either excessive number or electrons or shortage of them.
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3 years ago
A 2.00 kg box slides on a rough, horizontal surface, hits a spring with a speed of 1.90 m/s and compresses it a distance of 10.0
oksian1 [2.3K]

Answer:

Explanation:

Given

mass of box m=2\ kg

speed of box v=1.9\ m/s

distance moved by the box x=10\ cm

coefficient of kinetic friction \mu _k=0.66

Friction  force f_r=\mu_kN

f_r=0.66\times mg

f_r=0.66\times 2\times 9.8=12.936 \N

Kinetic Energy of box will be utilize to overcome friction and rest is stored in spring in the form of elastic potential energy

\frac{1}{2}mv^2=f_r\cdot x+\frac{1}{2}kx^2

\frac{1}{2}\times 2\times 1.9^2=12.936\times 0.1+\frac{1}{2}\times k\times (0.1)^2

3.61-1.2936=0.005\times k

k=463.28\ N/m

3 0
3 years ago
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