PHYSICS HIGH SCHOOL

What is the period of a sound wave having afrequency of 340. hertz?
(1) 3.40 × 10^2 s (3) 9.73 × 10^−1 s
(2) 1.02 × 10^0 s (4) 2.94 × 10^−3 s

Answers

Answer 1
Answer: 4)2.94 • 10^-3 sPeriod=(1/frequency)Period=(1/340Hz)Period=.0029411765 s

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4. Which of the following best describes Kinetic Energy?Stored energy due to position
Energy of motion
Force applied over a distance
A push or pull exerted on an object

Answers

Answer:

Energy Of Motion

Explanation:

The principal limitation of wind power is unpredictability. Please select the best answer from the choices provideda. True
b. False

Answers

The correct answer is A: True. Although the ability to forecast weather has increased over the years, the ability to predict when and how much wind will occur at any given time and place is difficult. Weather conditions are subject to constant change and while some areas are known to have more wind than others, there is no guarantee about how much wind there will be as weather patterns vary in consistency.

Answer:

A. True

Explanation:

What is the distance traveled by an object that moves with an average speed of 6.0 meters per second for 8.0 seconds

Answers

The distance traveled by the object is 48 m.

The given parameters;

average speed of the object, = 6 meters per second

time of motion of the object, t = 8 s

The distance traveled by the object is calculated as follows;

s = ((v+ u)/(2) )* t

where;

(v+u)/(2)  is the average speed of the object

Now, substitute the given values and solve for the distance traveled by the object;

s = ((v+ u)/(2) )* t\n\n\s = 6 * 8\n\n\s = 48\ m

Thus, the distance traveled by the object is 48 m.

Learn more here: brainly.com/question/3267354

This is a Physics question where we need to figure out how many meters Cam can run per second. To figure this out we divide the distance by the change in time.


40/5.79 = 6.9 meters per second approximately.

What is relative velocity?​

Answers

Relative velocity is the velocity of an object or observer B in the rest frame of another object or observer A

Answer:

the velocity of a moving body relative to another body is called relative velocity.

how much time would it take for an airplane to reach its destination if it traveled at an average speed of 790 kilometers/hours for a distance of 4700 kilometers? what is the airplanes speed in miles/hours?

Answers


If the airplane covered 790 kilometers along the ground every hour,
and if it could keep that up, and if there was no wind, and if the
airplane pointed its nose directly toward its destination and never
zigged or zagged even the slightest bit, then it would cover
790 kilometers of the distance during the first hour, another
790 kilometers of the distance during the second hour, another
790 kilometers of the distance during the third hour, 790 more
kilometers of the distance during the fourth hour, and so forth
and so on until it had arrived at its destination.

The minimum time it would need for the total trip would be

           (4,700 kilometers) / (790 kilometers per hour) =

                               5.9494... hours (rounded)

                           5hours 56m  57.7seconds  (rounded) .

(790 kilometers) x (1 mile / 1.609344 kilometers) =  490.88 miles (rounded)

t = ( \Delta S)/( \Delta V) \n \n t = (4700)/(790) \n \n t \approx 5.95 hours.

1 kmph is approx. 0.6214 mph.
Then.. 790 will be approx. 490 mph.

A fishing boat using sonar to locate fish is employing _____. diffraction
reflection
refraction
interference

Answers

Answer: reflection

Explanation:

SONAR - Sound Navigation and Ranging

It works on the principle of Echo i.e. the reflection of sound. Sound waves are sent out which get bounced off a nearby object. The reflected sound waves is detected and distance to the object is estimated. Sonar is used to detect, navigate or communicate  objects underwater. Thus, a fishing boat uses sonar to locate the fish. It is employing reflection.

The answer is Reflection
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