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Nataly_w [17]
3 years ago
13

If a .40kg football is thrown with an acceleration of 1.8m/s^2, what is the force used to throw the football? Question 1 options

: .22N 4.5N .72N 1N

Physics
1 answer:
RoseWind [281]3 years ago
3 0

Answer:

The correct answer is option C , 0.72 N

Explanation:

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A child's first bicycle has 12-inch tires. These tires have a 6-inch radius. How fa r does the bicycle move forward each time th
Lilit [14]

Answer:

a. s = 0.96 m

b. s = 2.15 m

Explanation:

a.

The relationship between the linear displacement and the angular displacement is given as follows:

s = r\theta

where,

s = linear distance covered = ?

r = radius of wheel = (6 in)(0.0254 m/1 in) = 0.1524 m

θ = angular displacement = (1 rev)(2π rad/1 rev) = 2π rad

Therefore,

s = (0.1524\ m) 2\pi

<u>s = 0.96 m</u>

<u></u>

b.

Assuming, we have to find linear displacement here, as well:

s = r\theta

where,

s = linear distance covered = ?

r = radius of wheel = (13.5 in)(0.0254 m/1 in) = 0.3429 m

θ = angular displacement = (1 rev)(2π rad/1 rev) = 2π rad

Therefore,

s = (0.3429 \ m) 2\pi

<u>s = 2.15 m</u>

3 0
3 years ago
Which of the following is a characteristic of a lever action firearm?
Setler79 [48]
I believe the answer would be A that you move the lever away from you to load the rifle (I know since I had such a rifle). This action places a shell into the firing chamber so that it is ready to fire so makes it convenient to re-load unlike where a shell must be placed in the chamber by hand each time such as is the case with many 0.22 rifles.
3 0
3 years ago
PLSSSSSSSS SOMEONE HELP ME WITH THIS ONE!!
zloy xaker [14]

Answer:

D

Explanation:

At the other end of the spectrum toward red, the wavelengths are longer and have lower energy.

8 0
3 years ago
You observe a distant galaxy. You find that a spectral line of hydrogen that is shifted from its normal location in the visible
dimulka [17.4K]

Answer:

The galaxy is moving away from us

Explanation:

Galaxy refers to a system of millions or billions of stars accompanied by gas and dust such that they are held together as a result of gravitational attraction.

When we observe a distant galaxy, we find that a spectral line of hydrogen that is shifted from its normal location in the visible part of the spectrum into the infrared part of the spectrum.

It means that the galaxy is moving away from us.

6 0
3 years ago
Need some help please answer please
yuradex [85]

Answer:

Its not d or e

Explanation:

8 0
2 years ago
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