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Nuetrik [128]
4 years ago
8

A hockey player swings her hockey stick and strikes a puck. According to Newtons 3rd law of motion which of the following is a r

eaction to the stick pushing on the puck
Physics
1 answer:
Korvikt [17]4 years ago
3 0

<u>Complete Question:</u>

A hockey player swings her hockey stick and strikes a puck. According to Newton’s third law of motion, which of the following is a reaction to the stick pushing on the puck?

A. the puck pushing on the stick .

B. the stick pushing on the player .

C. the player pushing on the stick .

D. the puck pushing on the player.

<u>Correct Option:</u>

According to Newton’s third law of motion the puck pushing on the stick is a reaction to the stick pushing on the puck.

<u>Option: A</u>

<u>Explanation:</u>

As when the hockey exert force on the puck (which is a flat ball basically used in ice hockey) then this action by hockey will receive equal and opposite reaction by puck. Thus when the stick is pushing on the this flat ball, then puck also push the stick. This is understood by newton's third law pf motion, where action and reaction forces are subject of discussion, displaying their is pair of forces applied among the interacting objects. This form is observed more practically in life and very frequent.

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jeyben [28]

Answer:

λ₁ = 2.50 10⁻² m,   λ₂ = 1.66 10⁻² m  

Explanation:

Microwave communication is very efficient because it does not have atmospheric interference, for which it is widely used and has been regulated to avoid interference, the ku band is in the range between 12 and 18 GHz.

Let's calculate the wavelength for the two extreme frequencies of this band

wavelength and frequency are related

         c = λ f

          λ = c / f

f₁ = 12 GHz = 12 10⁹ Hz

          λ₁ = 3 10⁸ /12 10⁹

           λ₁ = 2.50 10⁻² m

f₂ = 18 GHz = 18 10⁹ Hz

          λ₂ = 3 10⁸ /18 10⁹

          λ₂ = 1.66 10⁻² m

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8 0
3 years ago
Diffraction gratings with 10,000 lines per centimeter are readily available. Suppose you have one, and you send a beam of white
ArbitrLikvidat [17]

The angles for the first-order diffraction of the shortest and longest wavelengths of visible light are 22.33 ⁰ and 49.46 ⁰ respectively.

<h3>Angle for the first order diffraction</h3>

The angle for the first order diffraction is calculated as follows;

dsinθ = mλ

sinθ = mλ/d

<h3>For shortest wavelength (λ = 380 nm)</h3>

d = 1/10,000 lines/cm

d = 1 x 10⁻⁴ cm x 10⁻² m/cm = 1 x 10⁻⁶ m/lines

sinθ = (1 x 380 x 10⁻⁹)/(1 x 10⁻⁶)

sinθ = 0.38

θ = sin⁻¹(0.38)

θ = 22.33 ⁰

<h3>For longest wavelength (λ = 760 nm)</h3>

sinθ = (1 x 760 x 10⁻⁹)/(1 x 10⁻⁶)

sinθ = 0.76

θ = sin⁻¹(0.76)

θ = 49.46 ⁰

Learn more about diffraction here: brainly.com/question/16749356

#SPJ1

8 0
2 years ago
3. In what circumstance will a flash of lightning travel through the sky and<br> touch the ground?
alexgriva [62]

Answer: The answer is both. Cloud-to-ground lightning comes from the sky down, but the part you see comes from the ground up. A typical cloud-to-ground flash lowers a path of negative electricity (that we cannot see) towards the ground in a series of spurts.

Explanation:

5 0
2 years ago
Why does a gram of gold have the same density of a kilogram of gold
raketka [301]

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8 0
3 years ago
What is the kinetic energy of a 0.50 kg ball traveling at 120 m/s
MatroZZZ [7]

Answer:

3600 J

Explanation:

Kinetic energy of an object is the energy posses by an object solely due to its motion.

It can also be defined as the amount of work that can be done when an moving object come to test.

Kinetic energy of an object can be calculated by the equation,

K.E. = ½mv²

Where m = mass, v = velocity

So you get,

K.E. = ½×0.5×(120)² = 3600 J

8 0
3 years ago
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