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statuscvo [17]
4 years ago
13

Edwin hubble discovered that

Physics
1 answer:
dmitriy555 [2]4 years ago
5 0
Edwin Hubble discovered the cosmos , he discovered that there were other galaxies other than the Milky Way.
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Compute the velocity of light in calcium fluoride which has dielectric constant of 2.056 .​
Aleksandr [31]

Answer:

<h3>idl low presure but de 2.518 has a 6 divide 8 equal di. ko alam?</h3>
4 0
3 years ago
during the first 50s a truck traveled at constant speed of 25m/s . Find the distance that it traveled
Alekssandra [29.7K]
If it traveled 25 meters per second for 50 seconds, you'd do 25 times 50, which is 1250 feet.
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3 years ago
A 2100-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 5.00 m before coming into contact w
aliya0001 [1]

Answer:

   f = 878,080 N

Explanation:

mass of pile driver (m) = 2100 kg

distance of pile driver to steel beam (s) = 5 m

depth of steel driven (d) = 12 cm = 0.12 m

acceleration due to gravity (g0 = 9.8 m/s^{2}

calculate the average force exerted on the pile driver by the beam.

  • from work done = force x distance
  • work done = change in potential energy of the pile driver
  • equating the two equations above we have

               force x distance = m x g x (s - d)

              f x 0.12 = 2100 x 9.8 x (5- (-0.12))

              d = - 0.12 because the steel beam went down at we are taking its  

              initial position to be an origin point which is 0

              f = ( 2100 x 9.8 x (5- (-0.12)) ) ÷ 0.12

                   f = 878,080 N

4 0
3 years ago
Why does nuclear energy have high efficiency
NeX [460]

Answer : The main benefits of Nuclear Energy are because it is more efficient than burning most fossil fuels than the amount of energy that is released from the uranium per gram is much more than fuels such as oil and coal. This is approximately eight thousand times more efficient.

Hope this helps you out! ☺

5 0
3 years ago
A janitor comes across a spilled substance on the floor of a highschool chemistry lab. he wants to make sure that the liquid is
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A is the answer I think
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4 years ago
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