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algol13
3 years ago
6

A light-year is:

Physics
1 answer:
Leno4ka [110]3 years ago
4 0

Answer:

The answer to your question is: The distance traveled by light in one year.

Explanation:

A light year is a unit of distance.

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Which wavelength would scientists use to measure the molecular structure of H2O?
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To find out what water is made of, it helps to look at its chemical formula, which is H2O. This basically tells us that the water molecule is composed of two elements: hydrogen and oxygen or, more precisely, two hydrogen atoms (H2) and one oxygen atom (O).

Explanation:

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What compound is a product of photosynthesis?
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An exothermic reaction is defined as a reaction that _____.
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8 0
4 years ago
An 800-N man stands at rest on two bathroom scales so that his weight is distributed evenly over both scales. The reading on eac
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400 N

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4 years ago
Three objects lie in the x, y plane. Each rotates about the z axis with an angular speed of 5.58 rad/s. The mass m of each objec
QveST [7]

Answer:

a) V1=11.05m/s    V2=92.07m/s     V3=17.24m/s

b) KE = 16238.26J

Explanation:

For tangential speeds:

V1 = \omega*R1=5.58*1.98=11.05m/s

V2 = \omega*R2=5.58*16.5=92.07m/s

V3 = \omega*R3=5.58*3.09=17.24m/s

For the kinetic energy, it can be calculated as:

KE=1/2*\omega^2*(I1+I2+I3)

Where:

I1 = m1*R1^2=5.46*1.98^2=21.4kg.m^2

I2 = m2*R2^2=3.64*16.5^2=990.99kg.m^2

I3 = m3*R3^2=3.21*3.09^2=30.65kg.m^2

So,

KE=1/2*5.58^2*(21.4+990.99+30.65)

KE=16238.26J

4 0
3 years ago
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