All categories

4 years ago

A total solar eclipse is visible from

Physics

2 answers:

leonid [27]4 years ago

6 0

Answer:

b. only within the moon’s umbra.

Explanation:

A total solar eclipse occurs when the moon blocks the sunlight falling on the Earth. It occurs at the bright side of the Earth when Earth passes through the umbra of the moon.

When sun, moon and Earth align in a straight line, the disk of the moon is able to block the disk of the sun causing the sunlight to get blocked. Shadow of moon falls on the Earth. A total eclipse occurs when the sun is complete blocked and there is total darkness. It is visible from those areas which pass through the moon's umbra.

True [87]4 years ago

5 0

Hey! Hope that this helps. I'm fairly certain the answer is B, because I know that it's not visible from all over the earth, so that eliminates A, but doing some research I found out that an observer in the umbra experiences a total eclipse.

You might be interested in

Define thermal conductivity.

ladessa [460]

Answer:

A measure of the ability of a material to transfer heat.

Explanation:

Please mark me as brainliest please

4 0

3 years ago

A piece of aluminum with a mass of 3.05 g initially at a temperature of 10.8 °C is heated to a temperature of 20.

fgiga [73]

Answer:

25.3J

Explanation:

Given parameters:

Mass of aluminum = 3.05g

Initial temperature = 10.8 °C

Final temperature = 20 °C

Specific heat = 0.9J/g °C

Unknown:

Amount of heat needed for the temperature to change = ?

Solution:

To solve this problem, we use the expression:

H = m C Ф

H is the amount of heat

m is the mass

C is the specific heat capacity

Ф is the change in temperature

H = 3.05 x 0.901 x (20 - 10.8) = 25.3J

7 0

3 years ago

Amy uses 20N of force to push a lawn mower 10 meters. How much work does she do? *

babunello [35]

She does 200J .

We know she uses 20N of force and 10m is the distance. We multiply both numbers and we are given our answer of 200J. Hope this was helpful. :)

4 0

4 years ago

Sprinting near the end of a race, a runner with a mass 63 kg accelerates from a speed of 25 m/s to a speed of 26 m/s in 54 s. To

gavmur [86]

Answer:

1.1655 N

Explanation:

Given that,

Initial speed, u = 25 m/s

Final speed, v = 26 m/s

Time taken, t = 54 s

So, Applying equation of motion as:

$v=u+at\\\Rightarrow a=\frac{v-u}{t}\\\Rightarrow a=\frac{26-25}{54}\ m/s^2\\\Rightarrow a=0.0185\ m/s^2$

According to the Newton's second law of motion:-

$Force=Mass\times Acceleration$

Mass = 63 kg

So,

$Force=63\times 0.0185\ kgm/s^2$

<u>Force = 1.1655 N</u>

5 0

4 years ago

If the time between the horn sounding and the people on the ship hearing the echo from the ship is 4 seconds, how far away is th

Ksenya-84 [330]

Answer:

Explanation:

4 0

3 years ago