All categories

3 years ago

When there is a Crescent Moon in the night sky, how much of the entire Moon’s surface is actually lit by the Sun? Why?

Physics

2 answers:

marissa [1.9K]3 years ago

4 0

1 Answer. 50% of the lunar surface is always illuminated by Sun

larisa [96]3 years ago

3 0

Answer:

As moon goes round the earth we see the 50% surface only on full moon nights.

In the picture inner moon shows the actual illumination and outer moons shows our view from Earth

Explanation: i cant get the picture to load so....

You might be interested in

Half-Life refers to radiation levels true or false

o-na [289]

Answer:

True

Explanation:

Because half life is the length of time it takes for the,half of the radioactive atoms of a specific radionuclied to decay.

3 0

3 years ago

Compare the energy consumption of two commonly used items in the household. Calculate the energy used by a 1.40 kW toaster oven,

Nikolay [14]

Explanation:

It is given that,

Power consumed by toaster oven, $P=1.4\ kW$

Time taken, t = 6 minutes = 0.1 hour

Energy used by toaster, $W_{toaster}=P\times t$

$W_{toaster}=1.4\ kW\times 0.1\ h=0.14\ kWh$

Similarly,

Power consumed by toaster oven, $P=11\ W$

Time taken, t = 9 minutes = 0.15 hour

Energy used by toaster, $W_{toaster}=P\times t$

$W_{toaster}=11\ W\times 0.15\ h=1.65\ Wh=0.0016\ kWh$

Hence, this is the required solution.

3 0

3 years ago

Each of the four expansion models (recollapsing, critical, coasting, and accelerating) predict different ages for the universe,

cupoosta [38]

Answer:

This is because the age of the universe is determined by the pace of expansion in the past, and each model forecasts a different pace.

Explanation:

The age of the universe is determined by the pace of expansion in the past, and each model forecasts a different pace.

This is due to the fact that the expansion rate in the coasting model is constant and never changes. Because the cosmos is growing faster now than during the old days, recollapsing and critical models give shorter ages. According to the accelerating model, the universe is growing at a slower rate currently than in the past, implying an older age.

4 0

3 years ago

4. State in words how acceleration is calculated.

dimaraw [331]

You multiply force times friction

4 0

3 years ago

What is needed to set a body in motion

kumpel [21]

Answer:

Newtons law

Explanation:

According to this law, a body at rest tends to stay at rest, and a body in motion tends to stay in motion, unless acted on by a net external force.

3 0

4 years ago