<u>Answer:</u> The steel wire will stretch up to 1837.5 mm
<u>Explanation:</u>
We are given:
Mass = 25 kg
Length of wire = 10 m
Area of cross-section of wire = 
(Conversion factor: 
)
To calculate the change in stretching, we use the equation:
where,
E = young modulus of steel = 
F = force exerted by the weight = m g = 
l = length of wire = 10 m
A = area of cross section = 
= change in length = ?
Putting values in above equation, we get:
Converting above value in mili meters, we use the conversion factor:
1 m = 1000 mm
So, 1.8375 m = 1837.5 mm
Hence, the steel wire will stretch up to 1837.5 mm
<span>Density is a value for
mass, such as kg, divided by a value for volume, such as m3. Density is a
physical property of a substance that represents the mass of that substance per
unit volume. We do as follows:
</span><span>A. 1L
100 g /1L = 100 g/L
B. 0.10 L.
100g/0.10L = 1000 g/L ------> MOST DENSE SUBSTANCE
C. 100 L
</span>100g/100L = 1 g / L <span>
D. 10 L
</span>100g/10L = 10 g/L
0.000006kgm/s
Explanation:
Given parameters:
Mass = 0.01g
Velocity = 0.6m/s
Unknown:
Momentum = ?
Solution:
The momentum of a body is the product of its mass and velocity. It is subject to the impact a body in motion will have .
Momentum = mass x velocity
The unit is in kgm/s
We need to convert the mass to kilograms:
1000g = 1kg
0.01g = x kg ; 0.00001kg
Input the parameter:
Momentum = 0.00001 x 0.6 = 0.000006kgm/s
Learn more
Momentum brainly.com/question/2990238
#learnwithBrainly
Answer:
<h2>7.5 J</h2>
Explanation:
The work done by an object can be found by using the formula
workdone = force × distance
From the question we have
workdone = 10 × 0.75
We have the final answer as
<h3>7.5 J</h3>
Hope this helps you
Explanation:
G. gamma rays because they are produced by the hottest and most energetic objects in the universe, such as neutron stars and pulsars, supernova explosions, and regions around black holes.
hope this helps you
have a nice day:)
