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anygoal [31]
3 years ago
10

Which statement is not true about light? 1 point It is a particle and a wave It has mechanical and transverse waves It has mecha

nical and longitudinal waves It has electromagnetic and transverse waves
Physics
1 answer:
belka [17]3 years ago
4 0

Answer:

Option C

Explanation:

Light is an electromagnetic wave as it has characteristics of both electrical and magnetic waves. It is not a mechanical wave. Water and sound wave are mechanical wave as they need some medium to travel while light do not need any medium to travel.

Hence, option C is correct

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Before the car launches, which objects have stored energy?
Sloan [31]

Answer:

maybeeeeeeeee launcherrr im not sureee hehe

3 0
3 years ago
Why in drinking hot water, a thin-bottomed glass is taken?​
taurus [48]

Answer:

beacause it's contracts

Explanation:

when using a large bottomed glass the hot water cools that's why is good to use thin bottomed glass

6 0
3 years ago
You place an object 36.0 cm in front of a concave
vivado [14]

<em><u>Given</u></em><em> </em> :

  • <em>O</em><em>bject </em><em>position</em><em> </em>( u ) = - 36 cm
  • <em>focal</em><em> </em><em>length</em><em> </em>( f ) = - 16 cm
  • <em>image position</em><em> </em>( v ) = ?

now, we know

=》

\frac{1}{f}  =  \frac{1}{v}  +  \frac{1}{u}

=》

\frac{1}{ - 16}  =  \frac{1}{ - 36}  +  \frac{1}{v}

=》

\frac{1}{v}  =  \frac{ - 1}{16}  -  \frac{ - 1}{36}

=》

\frac{1}{v}  =  \frac{ - 9 - ( - 4)}{144}

=》

\frac{1}{v}  =  \frac{ - 9 + 4}{144}

=》

\frac{1}{v}  =  \frac{ -5}{144}

=》

v =  \frac{144}{ - 5}

=》

<em><u>v =  - 28.8</u></em>

So<em><u>, image position</u></em> = 28.8 cm, at same side of object .

8 0
3 years ago
To study the properties of various particles, you can accelerate the particles with electric fields. A positron is a particle wi
abruzzese [7]

Answer:

(a) 5.73 * 10¹³ m/s²

(b) 4.99 * 10⁵ m/s

Explanation:

(a) We know that Electrical force is the product of electric charge and electric field:

F = qE

We also know that Force is the product of mass and acceleration:

F = ma

Therefore, equating both of them:

ma = qE

Acceleration, a, will be:

a = (qE) / m

Electric charge of a positron = 1.602 * 10^(-19) C

Mass of a positron = 9.11 * 10^(-31) kg

Acceleration will be:

a = (1.602 * 10^(-19)) * 9.11 * 10^(-31)) / 326

a = 5.73 * 10¹³ m/s²

(b) Acceleration is the time rate of change of velocity. It is given as:

a = v/t

Velocity, v, will then be:

v = a * t

Time, t = 8.7 * 10^(-9) s

Therefore, velocity will be:

v = 5.73 * 10^(13) * 8.7 * 10^(-9)

v = 49.85 * 10⁴ m/s = 4.99 * 10⁵ m/s

7 0
3 years ago
a light object and a heavy object have the same kinetic energy. which has the greater momentum? explain.
vodomira [7]

The kinetic energies of a light and a heavy body are equivalent. The momentum is greater for the light body.

<h3>What is momentum?</h3>

Momentum is characterized as the intensity of a body's motion. As momentum depends on both velocity and the direction of the body's motion, it is quantified by "mass velocity". Since velocity is a vector and mass is a scalar, momentum is a vector quantity.

As a result of its higher mass, a heavy object will move with more momentum. Only when the average speed of the heavy particles is lower than that of the light particles will the average kinetic energy of the light particles equal the average kinetic energy of the heavy particles.

At the same temperature and pressure, lighter gases will move more quickly than heavier ones. 0K on the Kelvin scale denotes that the particles are not moving.

To learn more about momentum refer to:

brainly.com/question/1042017

#SPJ4

5 0
2 years ago
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