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3 years ago

What moon phase would you find when the Earth, Sun, and Moon make a 90-degree angle

Physics

1 answer:

FromTheMoon [43]3 years ago

8 0

Answer:

First quarter or the quarter moon in the phase when the earth, sun and moon make a 90- degree angle.

Explanation:

In this phase the moon arises in the noon and sets in the midnight. They can be seen in the after noon or even in the early evening high in the sky. The shape of the moon is half or can say the lighted half. In simple language the moon seen in the day time is the first quarter moon. Here, in this phenomenon the sun and the moon makes the 90- degree angle earth.

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If the flea jumps straight up, how high will it go? (Ignore air resistance for this problem; in reality, air resistance plays a

Savatey [412]

Answer:

The flea will reach to a height of 5.2 cm.

Explanation:

Let us assume it is given that, a flea reaches a takeoff speed of 1.0 m/s over a distance of 0.50 mm.

Initial speed, u = 1 m/s

Initial distance, x = 0.5 mm

We need to find the height reached by the flea. Using third equation of motion to find it.

At maximum height, its final speed, v = 0

$v^2-u^2=2ah$

Here, a = -g

$-u^2=-2g(h-x)\\\\1^2=2\times 9.8\times (h-0.5\times 10^{-3})\\\\h=0.052\ m$

h = 5.2 cm

So, the flea will reach to a height of 5.2 cm.

6 0

3 years ago

If a running system has a total change in heat of 295 joules, and it's running at a temperature of 402 kelvin, what is the entro

Liula [17]

The answer is either 75 or 55

7 0

3 years ago

The acceleration due to gravity on the moon is about 5.4 ft/s2 . If your weight is 150 lbf on the earth:

Arada [10]

Answer:

4.662 slugs

Explanation:

Your mass on the moon should always be the same as any planet you are on (due to law of mass conservation), only your weight be different as gravitational acceleration is different on each planet.

If you weight 150 lbf on Earth, and gravitational acceleration on Earth is 32.174 ft/s2. The your mass on Earth is

m = W / g = 150 / 32.174 = 4.662 slugs

which is also your mass on the moon.

4 0

3 years ago

What is the ideal mechanical advantage of the pulley system shown in this figure?

olchik [2.2K]

Answer:

Explanation:

4 0

3 years ago

Through which one of the following mediums is the velocity of a sound wave the greatest?

Colt1911 [192]

Answer: C. Steel

Explanation: When a sound wave travels through a solid body consisting

of an elastic material, the velocity of the wave is relatively

high. For instance, the velocity of a sound wave traveling

through steel (which is almost perfectly elastic) is about

5,060 meters per second. On the other hand, the velocity

of a sound wave traveling through an inelastic solid is

relatively low. So, for example, the velocity of a sound wave

traveling through lead (which is inelastic) is approximately

1,402 meters per second.

6 0

3 years ago