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3 years ago

Does a game ends when a player gets 10 or wins by 2? yes or no in ping pong

Physics

1 answer:

djyliett [7]3 years ago

5 0

Answer:

The game is won by being the first player to reach 11pts, and be at least 2pts ahead of the other player.

Explanation:

I am a ping pong aficionado....hope this helps :)

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Increase the mass of the beanbag its gravitational potential energy will

kotegsom [21]

The gravitational potential energy will increase

Explanation:

The gravitational potential energy (GPE) of an object is the energy possessed by the object due to its position in a gravitational field.

Near the Earth's surface, the GPE of an object is given by

$GPE=mgh$

where

m is the mass of the object

g is the acceleration of gravity

h is the heigth of the object above the ground

From the equation, we see that the GPE is directly proportional to the mass: therefore, if the mass increases, the GPE will increase as well.

So, for the beanbag in this problem, when its mass increases, the GPE will increase as well.

Learn more about gravitational potential energy:

brainly.com/question/1198647

brainly.com/question/10770261

#LearnwithBrainly

5 0

3 years ago

Calculate the wavelength when the frequency of 40,000 Hz travelling at 1450 m/s in fatty tissue.

dybincka [34]

Answer:

0.036m

Explanation:

Given parameters:

Frequency = 40000Hz

Speed = 1450m/s

Unknown:

Wavelength = ?

Solution:

To solve this problem, we use the wave velocity equation:

V = F ∧

V is the velocity

F is the frequency

∧ is the wavelength

Now insert the parameters and solve;

1450 = 40000 x ∧

∧ = 0.036m

4 0

3 years ago

When a space shuttle was launched, the astronauts aboard experienced and acceleration of 29.0 m/s. If one of the astronauts had

ankoles [38]

   Net force = (mass) · (acceleration)

   = (69 kg) · (29 m/s²)

   = (69 · 29) · (kg·m/s²)

   = 2,001 Newtons upward
   (about 450 pounds)

7 0

4 years ago

An object at rest or moving at a constant speed in a straight path will continue to do so unless acted upon by an unbalanced for

Furkat [3]

I believe if your looking for true or false answer, that the answer is true

5 0

3 years ago

A neutron in a nuclear reactor makes an elastic head-on collision with the nucleus of a plutonium atom initially at rest. (a) Wh

olga55 [171]

Answer:

Fraction = 59049/60025

Explanation:

Let m be the mass of the neutron and M be the mass of the plutonium nucleus (at rest)

Now, formula for kinetic energy before collision is;

K_i = ½mu²

Formula for kinetic energy after collision is;

K_f = ½mv²

Where;

u is the velocity of the neutron before collision

v is the velocity of the neutron after collision.

From collision principle where momentum before collision equals momentum after collision, we can say that;

(m - M)u = (m + M)v

Thus,

v = [(m - M)u]/(m + M)

Putting [(m - M)u]/(m + M) for v in the final kinetic energy equation gives;

K_f = ½m([(m - M)u]/(m + M))²

K_f = ½mu²((m - M)²/(m + M)²)

To get the fraction of the neutron's kinetic energy is transferred to the plutonium nucleus, it is simply;

K_f/K_i = [½mu²((m - M)²/(m + M)²)]/½mu²

This gives;

K_f/K_i = ((m - M)²/(m + M)²)

But mass of plutonium = 244m

Thus;

K_f/K_i = ((m - 244m)²/(m + 244m)²)

K_f/K_i = 59049m²/60025m²

K_f/K_i = 59049/60025

4 0

3 years ago