I'm really confused about waves and I can't identify the period, frequency, velocity etc in a word problem. Please give examples with units!!! I'm failing science rn!!

Answers

Answer 1

Answer:

Period is defined as the time required to complete one cycle which is also related to frequency. Period is presented by an equation P = 1/f where p is the period, and f is the frequency. The unit is in second. Frequency is defined as the number of circular revolutions in a given time interval and it is in Hertz (Hz) = 1s^-1. Velocity s defined as the arc traveled at a given time with the equation v=l/t where v is the velocity, l is the length and t is time. The unit is in m/s.

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The inventor of the photographic process in which a photograph produced without a negative by exposing objects to light on light sensitive paper, is named _____________a. Man Ray c. Dorothea Lange b. Richard Avedon d. Pablo Picasso
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The force of gravity on you is greatest when you are standing _____.a. far above Earth's surface
b. just above Earth's surface
c. on Earth's surface

Answers

The acceleration of gravity at the surface of the Earth is approximately 9.8 meters (32 feet) per second per second. As a result, during free fall, an object's speed rises by around 9.8 meters per second.

Explain about the force of gravity?

The force that binds all masses in the universe together, particularly the pull of the earth's mass on objects that are close to its surface.

The term gravitational force refers to the force that the earth exerts on a body. Examples of motion caused by gravitational force include the downward motion of water in a river, the downward motion of water in a stream, and the upward motion of a ball when it is thrown.

All physical things with mass are drawn to the gravitational force, which can be thought of as an attracting force. It is the known natural force that is by far the weakest. representation in mathematics. The formula for gravitational force is F = G m 1 m 2 r in mathematics.

The answer is on earth surface

To learn more about force of gravity refer to:

brainly.com/question/2537310

#SPJ2

The force of Earth's gravity on you is greatest when you stand as
close as you can to the center of the Earth (but not underground).

From the choices listed, that would be (c).

What is the potential of a 35kg child sitting at the top of a slide that is 3.5m above the ground? What is her kinetic energy if she moves down the slide at a speed of 5.0m/s??

Answers

Ep = mgh
= (35)(9.8)(3.5)
= 1200.5 J

Ek = (1/2)(mv^2)
= (0.5)(35)(5^2)
= 437.5 J

A speedboat initially at rest accelerates uniformly at 4.0 m/s (squared) for 7.0 s. How fast is the boat moving after 7.0 s?

Answers

well if the boat initially at rest accelerates at uniformly at 4.0 m/s (squared) then it would be best to muitlply it so 4.0 squared equals 2 by multiplying that by 7.0 your answer would be 14 s

A toaster oven has a power rating of 1200W. If you cook a pizza in it for 1 hour at 450°F, how manyjoules of electrical energy are converted into heat by the toaster oven?

Answers

Answer;

= 4,320,000 joules

Explanation;

Power is the ratio of Work per unit time. When work is done in a given span of time, the ratio of work performed with respect to time is called Power.

Therefore;

Power = Work done/time

Power = 1200 Watts and t = 1 hour or 3600 seconds

Thus;

Work done = Power × time

= 1200 × 3600

= 4,320,000 joules or 4320 kJ

Mary starts from her house, walks 80 meters south, and stops to chat with her aunt on the sidewalk. After chatting for a few minutes, she walks 125 meters to the west to meet a friend and then walks 45 meters north with her friend to a cafe for lunch. Overall, she takes 10 minutes to do all this. What is Mary’s average speed?

Answers

The average speed will be:
Total distance travelled divided by time taken
Total distance (in metres)= 80+125+45=250
Total time (minutes) =10
250/10
=25
Thus Mary's average speed is 25 metres per minute.

Answer:

Total distance (in metres)= 80+125+45=250

Total time (minutes) =10

250/10

=25

Explanation:

What do water, aluminum, redwood trees, and valley quail all in common?

Answers

Water, aluminum, redwood trees, and valley quail can be found anywhere on Earth. Water is everywhere, aluminum is a rich metal, trees are everywhere, valleys are everywhere.

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