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3 years ago

The D on a violin has a frequency of 293 Hz when it is in tune. Calculate the period.

1 answer:

8 0

Answer:
The period would be 0.0034 seconds

Explanation:
The d string has a frequency of 293 Hz when it is in tune
So the period of D string is 0.0034 seconds

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List some benefits of Cardiovascular exercise:

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Answer:

Aerobic exercise reduces the risk of many conditions, including obesity, heart disease, high blood pressure, type 2 diabetes, metabolic syndrome, stroke and certain types of cancer. Weight-bearing aerobic exercises, such as walking, help decrease the risk of osteoporosis.

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2 years ago

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Greg throws a 2.8-kg pumpkin horizontally off the top of the school roof in order to hit Mr. H's car. The car has parked a dista

Igoryamba

Answer:

The horizontal velocity is $v = 9.2 m/s$

Explanation:

From the question we are told that

The mass of the pumpkin is $m = 2.8 \ kg$

The distance of the the car from the building's base is $d = 13.4 \ m$

The height of the roof is $h = 10.4 \ m$

The height is mathematically represented as

$h = \frac{1}{2} gt^2$

Where g is the acceleration due to gravity which has a value of $g =9.8 \ m/s^2$

substituting values

$10.4= 0.5 * 9.8 * t$

making the time taken the subject of the formula

$t = \frac{10.4}{0.5 * 9.8 }$

$t = 1.457 \ s$

The speed at which the pumpkin move horizontally can be represented mathematically as

$v = \frac{d}{t}$

substituting values

$v =\frac{13.4}{1.457}$

$v = 9.2 m/s$

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2 years ago

Pls answerrr it's urgent!!!!!

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Explanation:

the average velocity of the car is 15 m/s example I have this on a test

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2 years ago

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I uploaded the answer to $^{}$ a file hosting. Here's link:

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3 years ago

A stunt woman of mass m falls into a net during the filming of an action movie. Assume she experiences upward acceleration magni

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Answer:

M= F^n / a+g

Explanation:

This shows correctly Newton’s second law, where sum of forces is divided by mass is equal to acceleration. Also mass can’t be negative so F^n is positive.

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3 years ago

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