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4 years ago

Why can you still seethe Moon during aneclipse?

1 answer:

3 0

During a total lunar eclipse, Earth completely blocks direct sunlight from reaching the Moon. The only light reflected from the lunar surface has been refracted by Earth's atmosphere. ... Due to this reddish color, a totally eclipsed Moon is sometimes called a blood moon.

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An object has a kinetic energy of 14 j and a mass of 17 kg how fast is the object moving

Brilliant_brown [7]

KE=14J
Mass=m=17kg
Velocity=v=?

$\\ \sf\Rrightarrow kE=\dfrac{1}{2}mv^2$

$\\ \sf\Rrightarrow 14=\dfrac{1}{2}17v^2$

$\\ \sf\Rrightarrow 17v^2=28$

$\\ \sf\Rrightarrow v^2=28/17$

$\\ \sf\Rrightarrow v^2=1.64$

$\\ \sf\Rrightarrow v\approx 0.13m/s$

5 0

3 years ago

5. How much power is dissipated when 0.2 ampere of current flows through a 100-ohm resistor ?

swat32

Answer:

P=I*I*R

Where P is power

I is current

R is Resistance

P=2*2*100

P=400W

Explanation:

Power is the rate of doing work.

From the Ohm’s law V=IR

Power=I*I*R

4 0

3 years ago

You drive a car for 2.0 h at 60 km/h, then for another 3.0 h at 85 km/h. What is your average velocity

Anon25 [30]

Answer:

Explanation:

Average velocity is found in the total displacement experienced in the trip divided by the total time it took to make this trip. If, for the first 2.0 hours, the car travels at 60 km/hr, then in 2.0 hours the car can travel 120 km; if it then travels for 3.0 at 85 km/hr, it can travel 255 km in the same direction. The total time this took was 5.0 hours. So doing the math and rounding correctly by following the rules for the adding and subtracting of sig fig's:

$v=\frac{120+255}{5.0}=\frac{380}{5.0}=76\frac{km}{hr}$

If you do not round when you add, the average velocity is 75 km/hr

8 0

3 years ago

What is the idea behind the law of multiple proportions?

Akimi4 [234]

Answer:

The law of multiple proportions states that when two elements can combine in different ratios to form different compounds, the masses of the element combining with the fixed mass of another element result in whole number ratios. This shows that the law of multiple proportions is followed

Explanation:

5 0

4 years ago

In this graph, calculate the speed of<br> segment A in m/s?

andrew11 [14]

Answer:

The answer is Speed=2m/s

Explanation:

S=D/T

S=10m/5s

S=2m/s

5 0

3 years ago

Why can you still seethe Moon during aneclipse?​

Why can you still seethe Moon during aneclipse?