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Ivan
3 years ago
13

How many astronauts have walked on the moon?

Physics
1 answer:
goldenfox [79]3 years ago
6 0

12 astronauts have walked on the moon. The people are Neil Armstrong, Edwin Aldrin, Charles Conrad, Alan Bean, Alan Shepard, Edgar Mitchell, David Randolph Scott, James Irwin, John Young, Charles Duke Jr., Harrison Schmitt, and Eugene Cernan. Hope this helps :)

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A traveling periodic wave passes a point of observation. At this point, the time between successive crests is 0.2s. What can you
Aleks04 [339]

The time between the successive crusts will give the time period of the wave.

So, the time period, T of the given wave is 0.2 s.

The frequency of a wave is the reciprocal of its time period. That is,

Frequency, ν = \frac{1}{T}

= \frac{1}{0.2}

= 5 Hz

Thus, the frequency of the given travelling periodic wave is 5 Hz.

3 0
3 years ago
Read 2 more answers
4. An object is moving with an initial velocity of 9 m/s. It accelerates at a rate of 1.5
Mazyrski [523]

Answer:

11.87 ms⁻¹

Explanation:

You can use the kinematic equation

v² = u² + 2as

Where v = final velocity

          u = initial velocity

          a = acceleration

          s = displacement

v² = 9² + 2×1.5×20

So you get v = 11.87 ms⁻¹

7 0
3 years ago
The capacity of the air to hold water vapor: Group of answer choices 1. decreases with an increase in temperature.2. increases w
Nezavi [6.7K]

Answer:

3. increases with an increase in temperature.

Explanation:

The air more water vapor at higher temperatures because at higher temperatures the air expands and the inter-molecular space increases so the room for water molecules increases.

Warm air keeps the water molecules warm and prevents them from condensing.

The air can hold the moisture only upto its saturation quantity after which the precipitation occurs in the form of rain, snow, hail, sleet etc.

5 0
3 years ago
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Find the electric flux passing through the 45° surface of an upright circular cone with a base diameter of 4 m if the electric f
alexgriva [62]

Answer:

electric flux = 177.625 N-m²/C

Explanation:

given data

angle = 45°

diameter = 4 m

electric field E = 20 N/C

to find out

electric flux

solution

we know electric flux formula that is

electric flux = E × A × cosθ     ..............1

here A is area that is

Area = πd²/4 = π(4)²/4 = 12.56 m²

now put all value in equation 1

electric flux = 20 × 12.56 × cos45

electric flux = 177.625 N-m²/C

8 0
3 years ago
The distance versus time graph for Object A and Object B are shown.
lianna [129]
Both move with constant speed
5 0
3 years ago
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