All categories

2 years ago

For a given wave if the frequency doubles the wave length?

1 answer:

5 0

For a given wave in a given medium, if the frequency doubles,
the wavelength becomes 50% shorter.

That is, it becomes half as long as it was originally.

You might be interested in

Two electric charges, held a distance, dd, apart experience an electric force of magnitude, FF, between them. If one of the char

lorasvet [3.4K]

Answer:

$F'=2F$

Explanation:

The Coulomb's law states that the magnitude of the electrostatic force between two charges is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them:

$F=\frac{kq_1q_2}{d^2}$

In this case, we have $q_1'=2q_1$ :

$F'=\frac{kq'_1q_2}{d^2}\\F'=\frac{k(2q_1)q_2}{d^2}\\F'=2\frac{kq_1q_2}{d^2}\\F'=2F$

3 0

3 years ago

A satellite at a particular point along an elliptical orbit has a gravitational potential energy of 5100 MJ with respect to Eart

serious [3.7K]

To solve this problem we will apply the theorem given in the conservation of energy, by which we have that it is conserved and that in terms of potential and kinetic energy, in their initial moment they must be equal to the final potential and kinetic energy. This is,

$E_{initial} = E_{final}$

$PE_{initial}+KE_{initial} = PE_{final}+KE_{final}$

Replacing the 5100MJ for satellite as initial potential energy, 4200MJ for initial kinetic energy and 5700MJ for final potential energy we have that

$KE_{final} = (PE_{initial}+KE_{initial} )-PE_{final}$

$KE_{final} = (5100+4200)-5700$

$KE_{final} = 3600MJ$

Therefore the final kinetic energy is 3600MJ

5 0

3 years ago

Does a spring scale measure weight or mass? Why?

Marat540 [252]

A spring scale measures weight because It works by Hooke's Law, which states that the force needed to extend a spring is proportional to the distance that spring is extended from its rest position. Therefore, the scale markings on the spring balance are equally spaced. A spring scale cannot measure mass, only weight. hope that helped

5 0

3 years ago

Clarence is taking his dog for a walk around town. After wandering around for an hour, his mother calls him, telling him dinner

Anvisha [2.4K]

Answer:

he can subtract the distance and then divide by the time it takes him

Explanation:

8 0

2 years ago

A stunt pilot weighing 0.70 kN performs a vertical circular dive of radius 0.80 km.At the bottom of the dive, the pilot has a sp

Yuliya22 [10]

Answer:

Force plane exert on pilot = 4270 N

Explanation:

first convert radius and speed to ms

using formula from force we know that

mass = weight/ gravity = 700 N/ 9.8N/kg= 71.4 kg

Fc= N-mg

N= Fc+ mg As Fc = mv²/R

N= mv²/R + mg

taking m common

N= m( v²/R +g)

= 71.4( (200)²/ 800 + 9.8 )

Force = 4270 N

3 0

3 years ago