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topjm [15]
4 years ago
11

It's hard to make a mechanical wave go through some...

Physics
1 answer:
oee [108]4 years ago
5 0
I don't know about hard to make, but it's impossible to make a mechanical wave transmit energy through a vacuum.
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Pls help ASAP !! Phyics
mina [271]

Answer:

Explanation:

Given

mass (m)= 20 kg

acceleration (a)= 10 m/s^2

Force (f)= m a

             = 20 * 10

            = 200 N

7 0
3 years ago
An object of mass 100 kg is accelerated uniformly from a velocity of 5 ms–1
solniwko [45]

Answer:

Initial velocity of the object, u = 5 m/s

Final velocity of the object, v = 8 m/s

Mass of the object, m = 100 kg

Time take by the object to accelerate, t = 6 s

Initial momentum = mu = 100 — 5 = 500 kg m sˆ’1

Final momentum = mv = 100 — 8 = 800 kg m sˆ’1

Force exerted on the object, F = mv – mu / t

= m (v-u) / t

= 800 – 500

= 300 / 6

= 50 N

Initial momentum of the object is 500 kg m sˆ’1.

Final momentum of the object is 800 kg m sˆ’1.

Force exerted on the object is 50 N.

mark this as brainliest!

6 0
4 years ago
A mass attached to the end of a spring is oscillating with a period of 2.25 s on a horizontal frictionless surface. The mass was
Rudiy27

Answer:

X=0.0389m

Explanation:

From the question we are told that:

Period of spring T_s=2.25s

Initial Position of Mass x=0.0480m

Final Mass period T_f=5.85s

Generally the equation for the Mass location is mathematically given by

X=xcos*\frac{2\pi T_s}{T_f}

X=0.048*cos*\frac{2\pi 5.85}{2.25}

X=0.0389m

7 0
3 years ago
Which one you think is easier
Gnoma [55]

The third option looks easier

3 0
3 years ago
Read 2 more answers
Why is the mass of carbon atom greater than the total mass of its protons and electrons
VLD [36.1K]
One or more neutrons in the nucleus add mass to the atom.
8 0
4 years ago
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