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3 years ago

Do you believe there is an end to the universe? Explain your answer

Physics

1 answer:

musickatia [10]3 years ago

4 0

Yes. time and space has to stop somewhere we just don’t know enough information yet

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A train travels 77 kilometers in 1 hour, and the 66 kilometers in 1 hour. What is the average speed?

Kipish [7]

Average speed = (total distance covered) / (time to cover the distance)

Total distance = (77km + 66km) = 143 kilometers

Time to cover the distance = 2 hours

Average speed = (143 km) / (2 hours) = 71.5 km per hour

6 0

3 years ago

Lamar has been running sprints to prepare for his next football game.He has found that he can maintain his maximum speed for 45

Svet_ta [14]

Answer:

Kindly check explanation

Explanation:

Length of race = 5km

Maximum speed = 45 yards

Converting from yards to kilometer :

1km = 1093.613 yards

x = 45 yards

(1093.613 * x) = 45

x = 45 / 1093.613

x = 0.0411480 km

Where x = maximum length for which he can maintain his maximum speed expressed in kilometers.

Therefore, with the available information, it can be concluded that Lamar cannot maintain his maximum speed for the entire 5km race and will only be able maintain his maximum speed for 0.0411 kilometers.

5 0

3 years ago

(I have 2 questions which are very similar)

julsineya [31]

Answer:

Explanation:

please mark as brainliest :)

7 0

3 years ago

Eugene is studying the levels of structural organization of an animal’s body. Which level would describe a dog’s eye

mrs_skeptik [129]

The levels of structural organization:
cell ---> tissue ---> organ ---> organ system ---> organism

A dog's eye would be an organ.

6 0

4 years ago

Read 2 more answers

Identical isolated conducting spheres 1 and 2 have equal charges and are separated by a distance that is large compared with the

scoundrel [369]

Answer:

F = 0.1575 N

Explanation:

When the third sphere touches the first sphere, the charge is distributed between both spheres, then now the first sphere has only half of his original charge.

In this moment then

Sphere one has a charge = Q/2

Sphere three has a charge = Q/2

Now when the third sphere touches the second sphere again the charge is distributed in a manner that both sphere has the same charge.

How the total charge is Q = Q/2 + Q = 3/2Q, when the spheres are separated each one has 3/4Q

Sphere two has a charge = 3/4Q

Sphere three has a charge = 3/4Q

The electrostatic force that acts on sphere 2 due to sphere 1 is:

F = $\frac{kQ_{1}Q_{2} }{r^{2} }$