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liq [111]
3 years ago
7

Why can Muhammad exert a greater punching force with his bare fist than he can while wearing a

Physics
1 answer:
weqwewe [10]3 years ago
5 0

Answer:

the glove could be heavy so slowing down his power

Explanation:

JUST GUESSED

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A Boy can raise a load of 200N up to a<br>height of 2.5m in 15 seconds. calculate his<br>power​
shtirl [24]

Explanation:

f=mg

=200×10

=200N

Now,

work done=df

25×200

=500J

7 0
3 years ago
Which sentence states Newton's second law?​
Shalnov [3]

Answer:

Force is equal to the change in momentum per change in time.

Explanation:

That situation is described by Newton's Second Law of Motion. According to NASA, this law states, "Force is equal to the change in momentum per change in time. For a constant mass, force equals mass times acceleration." This is written in mathematical form as Force = mass.

6 0
2 years ago
If it requires 4.5 J of work to stretch a particular spring by 2.3 cm from its equilibrium length, how much more work will be re
saveliy_v [14]

Answer:

\Delta W=24.1162\ J

Explanation:

Given:

  • work done to stretch the spring, W=4.5\ J
  • length through which the spring is stretched beyond equilibrium, \Delta x=2.3\ cm=0.023\ m
  • additional stretch in the spring length, \delta x=3.5\ cm=0.035\ m

<u>We know the work done in stretching the spring is given as:</u>

W=\frac{1}{2} \times k.\Delta x^2

where:

k = stiffness constant

4.5=0.5\times k\times 0.023^2

k=17013.2325\ N.m^{-1}

Now the work done in stretching the spring from equilibrium to (\Delta x+\delta x):

W'=0.5\times k.(\Delta x+\delta x)^2

W'=0.5\times 17013.2325\times 0.058^2

W'=28.6162\ J

So, the amount of extra work done:

\Delta W=W'-W

\Delta W=28.6162-4.5

\Delta W=24.1162\ J

4 0
3 years ago
Is a compound considered a pure substance?
IgorLugansk [536]

Answer:

It depends on which compound you use carbon dioxide can be while helium will not but if you where to sum it up it would be use because simply most compounds are considered pure substance.

Explanation:

7 0
3 years ago
A student has 4 different containers each filled with a different liquid. How could they determine which liquid is the most dens
motikmotik
If the jars are all the same size, and there's the same AMOUNT of liquid in
each jar, then the most dense liquid is the one that's in the heaviest jar.
8 0
3 years ago
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