All categories

3 years ago

Which electromagnetic waves have the shortest wavelength and the highest frequency?

Physics

1 answer:

ra1l [238]3 years ago

5 0

It’s supposed to be gamma, what are your other options

You might be interested in

I s w a t e r w e t ?

BlackZzzverrR [31]

What happens to us is when we come into contact with water in such a way that it impinges on our state of being. We, or our possessions, 'get wet'.

6 0

4 years ago

Satellite communication is only possible using

RoseWind [281]

Answer:

its b

Explanation:

8 0

3 years ago

Read 2 more answers

A student holds one end of a thread, which is wrapped around a cylindrical spool, as shown above. The student then drops the spo

lesya [120]

by energy conservation we know that

KE or rotation + KE of translation = gravitational PE

now we have

$\frac{1}{2}I\omega^2 + \frac{1}{2}mv^2 = mgH$

also we know that

$v = R\omega$

now we have

$\frac{1}{2}(\frac{1}{2}mR^2)\omega^2 + \frac{1}{2}m(R\omega)^2 = mgH$

$\frac{3}{4}mR^2\omega^2 = mgH$

$\omega = \sqrt{\frac{4gH}{3}}/R$

now when it is rolling on ground the torque acting on it due to friction force is given by

$\tau = R F_f$

$\tau = \mu mg R$

$\alpha = \frac{\mu mg R}{\frac{1}{2}mR^2}$

$\alpha = \frac{2 \mu g}{R}$

now angular speed at any time is given as

$\omega = \omega_i + \alpha t$

$\omega = \sqrt{\frac{4gH}{3}}/R -\frac{2 \mu g}{R} t$

so above is the angular speed in terms of time "t"

7 0

4 years ago

Why capillary happen.

Lady bird [3.3K]

This doesn’t mark any sense

5 0

3 years ago

When a car climbs a hill, it has only potential energy True or false

Dmitriy789 [7]

Answer:

On the way back up the hill, the car converts kinetic energy to potential energy. In the absence of friction, the car should end up at the same height as it started. ... The total energy of the ball stays the same but is continuously exchanged between kinetic and potential forms.

Explanation:

hope it helps :D

7 0

3 years ago

Read 2 more answers