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Slav-nsk [51]
3 years ago
11

Aunt Mary needs to hang a picture in her bedroom. She uses a hammer to drive the nail into the wall. Find the force exerted by t

he hammer on the nail if the hammer stays in contact with the nail for 0.5s and has an impulse of 25Ns
Physics
1 answer:
icang [17]3 years ago
5 0

Answer:

50N

Explanation:

Impulse = Force × Time

25 = Force × 0.5

Force = 25/0.5

= 50N

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to start an avalanche on a mountain slope, an artillery shell is fired with an initial velocity of 290 m/s at 53.0° above the ho
kap26 [50]
So this is easy to calculate when you split the velocity into x and y components. The x component is going to equal cos(53) * 290 and the y component is going to equal sin(53)*290.

The x location therefore is 290*cos(53)*35 = 6108.4m

The y location needs to factor in the downwards acceleration of gravity too, which is 9.81m/s^2. We need the equation dist. = V initial*time + 0.5*acceleration*time^2.

This gives us d=290*sin(53)*35 + (0.5*-9.81*35^2)=2097.5m

So your (x,y) coordinates equals (6108.4, 2097.5)
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3 years ago
A wave of frequency 90 mega in 3 micro seconds. Calculate its wave length. hertz travels 6 km​
gladu [14]

the wavelength is 2.2m

wavelength can be calculated by formula wavelength = velocity / frequency so here first we need to find the velocity so velocity is distance travelled/time taken that 2 X 10^8 m/s now wavelength is =  2 X 10^8/ 90=2.2m.

Waves are signals that can go through various media, including wire in the case of an electrical AC current, water, light, and other media. The separation between two identical points on a sinusoidal wave is known as the wavelength. You can determine how long there is between each wave's peak and each wave's trough if you know the frequency of the wave moving through the medium.

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3 0
2 years ago
How do scientific tests help determine the properties of substance?
Maurinko [17]

There are various properties which are exhibited by substances like physical properties,chemical properties,magnetic properties,electric properties etc.

By simply observing the substance we can not get any idea about the property of a substance.One has to conduct various tests in order to reach at his or her conclusion. The scientific tests provides a better understanding about the nature of substance and the changes that happen under various conditions and parameter.

5 0
3 years ago
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Answer:

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Suppose you are hiking along a trail. Make a comparison between the magnitude of your displacement and your distance traveled. C
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The magnitude of your displacement is usually less than the distance you travel.

The magnitude of your displacement can be equal to the distance you travel, if you travel in a perfectly straight line.

The magnitude of your displacement can never be greater than the distance you travel.

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3 years ago
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