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3 years ago

What do we need to generate electricity?

Physics

1 answer:

Alekssandra [29.7K]3 years ago

4 0

Answer:

Electricity is most often generated at a power plant by electromagnetic generators.

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What is the wave speed of a 1,000 Hz wave with a wavelength of 0.04 m?

dalvyx [7]

Wave speed = 40 m/s

Explanation:

Wave speed = frequency x wavelength

Wave speed = 1000 * 0.04

Wave speed = 40 m/s

6 0

3 years ago

What is walking,jogging, and map reading skills considered as

Karo-lina-s [1.5K]

I looked it up and it gave me educational exercise, but I don't know if it is right.

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3 years ago

Read 2 more answers

You place a large pebble in a slingshot, pull the elastic band back to your chin, and release it, launching the pebble horizonta

sladkih [1.3K]

Answer:

The larger pebble has 25 times more mass.

Explanation:

To solve the exercise it is necessary to apply the work and energy conservation equations.

For the case described, the work done must be preserved and must be the same, that is,

$W = 0$

By definition work linked to the conservation of kinetic energy would be given by

$\Delta KE = W = 0$

$\Delta KE = 0$

$KE_{larger}-KE_{smaller} = 0$

$KE_{larger}=KE_{smaller}$

$\frac{1}{2}m_lv_l^2 = \frac{1}{2}m_sv_s^2$

$m_lv_l^2 = m_sv_s^2$

The ratio between the mass and the velocity would be,

$\frac{m_l}{m_s}=\frac{v_s^2}{v_l^2}$

$\frac{m_l}{m_s} = \frac{500^2}{100^2}$

$\frac{m_l}{m_s} = 25$

Therefore the answer is: The larger pebble has 25 times more mass.

4 0

3 years ago

Which is an example of transforming potential energy to kinetic energy? Select two options

blsea [12.9K]

Answer : 

.changing chemical energy to thermal energy

.changing nuclear energy to radiant energy

Explanation : 

<h3>Hope it helps you mate ))</h3>

3 0

3 years ago

What are the four factors that determine weather?

garik1379 [7]

Solar Radiation, Orbital Distance, Air Pressure, and the Abundance of water.

8 0

3 years ago