3 years ago

State the objects in the universe that reflect light from stars

2 answers:

8 0

Planets reflect light Moons Stars produce it black holes suck it in as it sucks in it it spins not really reflecting it though btw thank you AL2006 for the correction

worty [1.4K]3 years ago

4 0

Everything in the universe that's visible, except stars,
is visible because it reflects some of the light that
shines on it.

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And Minister Juan Carlos, how much clean energy are we using today in proportion (percentages) to dirty energy?

Olenka [21]

Answer:

39%.

Explanation:

Spain produces electricity from wind energy was 18%, from hydropower is 14%, 5% from solar energy, and 2% from other renewable sources in the year 2016. About 39% of energy comes from renewable resources while on the other hand, 61% of energy comes from non-renewable resources such as petroleum. Spain has the capability to fulfill all its energy needs from renewable resources.

7 0

4 years ago

How much mass should be attached to a vertical ideal spring having a spring constant (force constant)of 39.5 N/m so that it will

nordsb [41]

Answer:

m = 1 kg

Explanation:

Given that,

The force constant of the spring, k = 39.5 N/m

The frequency of oscillation, f = 1 Hz

The frequency of oscillation is given by the formula as formula as follows :

$f=\dfrac{1}{2\pi}\sqrt{\dfrac{k}{m}} \\\\f^2=\dfrac{k}{4m\pi^2}\\\\m=\dfrac{k}{4\pi^2 f^2}\\\\m=\dfrac{39.5}{4\pi^2 \times (1)^2}\\\\m=1\ kg$