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mrs_skeptik [129]
2 years ago
13

What are the benefits that you can get from playing volleyball​

Physics
1 answer:
timurjin [86]2 years ago
3 0
So I played volleyball and the benefits I got was my arm strength got better and I learned how to jump higher
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Is the hand grip test an example of an isometric or an isotonic muscle contraction? Explain your reasoning.
shusha [124]

Hand grip test an example of an isometric muscle contraction.

Isometric(increased pressure but no shortening)

Explanation:

  • Isometric contraction, is one in which the muscle is activated, but instead of being allowed to lengthen or shorten, it is held at a constant length.
  • An isometric exercise is a form of exercise involving the static contraction of a muscle without any visible movement in the angle of the joint.
  • Isometric exercises are contractions of a particular muscle or group of muscles. During isometric exercises, the muscle doesn't noticeably change length and the affected joint doesn't move. Isometric exercises help maintain strength. They can also build strength, but not effectively.
  • Isometric exercise is also known as static strength training. (Examples include the plank and side bridge as well as the wall sit and many yoga poses such as chair and tree poses).
5 0
3 years ago
UV radiaGon having a wavelength of 120 nm falls on gold metal, to which electrons are bound by 4.82 eV. What is the maximum kine
Solnce55 [7]

Answer:

K.E = 5.53 eV = 8.85 x 10⁻¹⁹ J

Explanation:

First we calculate the energy of photon:

E = hc/λ

where,

E = Energy of Photon = ?

h = Plank's Constant = 6.626 x 10⁻³⁴ J.s

c = speed of light = 3 x 10⁸ m/s

λ = wavelength = 120 nm = 1.2 x 10⁻⁷ m

Therefore,

E = (6.626 x 10⁻³⁴ J.s)(3 x 10⁸ m/s)/(1.2 x 10⁻⁷ m)

E = (16.565 x 10⁻¹⁹ J)(1 eV/1.6 x 10⁻¹⁹ J)

E = 10.35 eV

Now, from Einstein's Photoelectric equation we know that:

Energy of Photon = Work Function + K.E of Electron

10.35 eV = 4.82 eV + K.E

K.E = 10.35 eV - 4.82 eV

<u>K.E = 5.53 eV = 8.85 x 10⁻¹⁹ J</u>

4 0
3 years ago
Often in Physics we will show a frame of reference as a
OlgaM077 [116]

Answer:

In physics, a frame of reference, or reference frame, is a perspective that one uses to determine if an object is moving.

Explanation:

8 0
3 years ago
For Jane to see an image, light must enter her eyes. What specifically is entering her eyes when she sees an image?
Sergio [31]
Energy
because once the light hits her eyes energy flows through her body so the answer is A energy
3 0
3 years ago
Read 2 more answers
How long will it take to fall 50 m?
Ad libitum [116K]

Answer:

down below

Explanation:

Since we aren't the given the time, lets say that an object to 25 seconds to fall 50 meters. We can use the formula [ s = d/t ] to solve.

s = 50/25

s = 2

Therefore, the object was falling at a rate of 2 meters per second.

Best of Luck!

6 0
2 years ago
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