Explain what wave frequency is...

Answers

Answer 1

Answer:

Wave frequency is the number of waves that pass a fixed point in a given amount of time.

Answer 2

Answer:

Explanation:

Wave frequency is the number of waves that pass a fixed point in a given amount of time. The SI unit for wave frequency is the hertz (Hz), where 1 hertz equals 1 wave passing a fixed point in 1 second. A higher-frequency wave has more energy than a lower-frequency wave with the same amplitude.

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Images at home that represent conduction convection and radiation

Answers

radiation: the lamp heats the thing under it.
conduction: plug in a outlet I think
convection: basically a oven heating up something inside something

At 25°C, the screech of the Sneetches can travel 250 meters across the plains of Sneedville in 0.50 seconds. Determine the velocity of these sound waves as they travel across the plains. show your work

Answers

Answer:

The velocity of the sound waves across the plains of Sneedville is 500 m/s.

Step-by-Step Explanation:

Distance travel by the screech of Sneetches = d = 250 m

Time taken to cove 250 meters = t = 0.50 s

Let the velocity of the sound waves be v, such that:

v = d/t

⇒ v = 250/0.5

⇒ v = 500 m/s

A student that jumps a vertical height of 50 cm during the hang time activity.a. What is the hang time of the student?
b. What speed must the student leave the ground with to reach that height?

Answers

The hang time of the student is 0.64 seconds, and he must leave the ground with a speed of 3.13 m/s

Why?

To solve the problem, we must consider the vertical height reached by the student as max height.

We can use the following equations to solve the problem:

Initial speed calculations:

$v_(f)^(2)=v_(o)^(2)+2*a*d$

At max height, the speed tends to zero.

So, calculating, we have:

$v_(f)^(2)=v_(o)^(2)+2*a*d\n\n0=v_(o)^(2)+2*(-9.81(m)/(s^(2)))*0.5m\n\nv_(o)^(2)=9.81(m^(2) )/(s^(2))\n\nv_(o)=\sqrt{9.81(m^(2) )/(s^(2))}=3.13(m)/(s)$

Hang time calculations:

We must remember that the total hang time is equal to the time going up plus the time going down, and both of them are equal,so, calculating the time going down, we have have:

$y-yo=vo.t+(1)/(2)*9.81(m)/(s^(2))*t^(2) \n\n0.5m-0=0*t+4.95*t^(2)\n\nt^(2)=(0.5)/(4.95)\n\nt=√(0.101)=0.318s$

Then, for the total hang time, we have:

$TotalHangTime=2*0.318seconds=0.64seconds$

Have a nice day!

The acceleration of the gravity Moon is equal to one-sixth of Earth's gravitational acceleration times. if an astronaut has a mass of 60 kg, what is the mass ande weight of the astronauts on the moon?

Answers

In your question, when you said "... an astronaut has a mass of 60 kg ...",
you didn't mention where he has that mass ... you only said that he has it.
Clearly, then, his mass doesn't depend on where he is. It's the same mass
everywhere.

His weight, however, does depend on where he is, because the weight of
any object is the gravitational force between the object and something else.

When the 60-kg astronaut is on Earth his weight is 588.4 newtons (132.3 pounds).

When he is on the moon, his weight is 97.4 newtons (21.9 pounds).

'mass' will be same every where ....weight differs and it depends upon gravity .....u said mass of astrounaut is 60 .....so on moon also mass will be 60 kgs ...but weight differs ....and on moon he "weighs" 97.4 newtons

What is the definition of power

Answers

Answer: .

energy that is produced by mechanical, electrical, or other means and used to operate a device.

Explanation:

There are many definitions of power.

Yogi Berra is a famous New York Yankees relief pitcher. True False

Answers

Yogi Berra was not a relief pitcher for the New York Yankees; he was a famous baseball player who primarily played as a catcher for the New York Yankees. Therefore is statement is false.

He is widely regarded as one of the greatest catchers in baseball history. Berra won numerous accolades and championships throughout his career and was known for his exceptional skills both behind the plate and with the bat.

As a catcher, Yogi Berra played a crucial role in managing the Yankees' pitching staff, calling pitches, and providing defensive stability. He was known for his exceptional baseball IQ and his ability to handle pitchers effectively.

Know more about Yogi Berra:

brainly.com/question/1065078

#SPJ6

The answer is false because hes a catcher

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