All categories

3 years ago

If you put a penny in each light spot, explain which one will receive the most energy.

Physics

1 answer:

SIZIF [17.4K]3 years ago

8 0

If you put a penny in each light spot the penny that the light is shining on will recive the most energy.

You might be interested in

A capacitor of 30.0 μ F 30.0 μF and a resistor of 110 Ω 110 Ω are quickly connected in series to a battery of 4.00 V. 4.00 V. Wh

Tanzania [10]

Answer: $Q=31.368\ \mu C$

Explanation:

Given

capacitance $C=30\ muF$

Resistance $R=110\ Omega$

Applied Voltage $V=4\ V$

$t=0.001\ s$

Charge on Capacitor in a R-C circuit is given by

$Q=Q_0(1-e^{\frac{-t}{RC}})$

$Q=CV(1-e^{\frac{-t}{RC}})$

$Q=30\times 10^{-6}\times 4(1-e^{\frac{-0.001}{110\times 30\times 10^{-6}}})$

$Q=120\times 10^{-6}\times 0.2614$

$Q=31.368\ \mu C$

8 0

4 years ago

A bar magnet has

MrRissso [65]

Answer:

Explanation:

Bar magnets have two magnetic poles

8 0

3 years ago

HURRY!!!

geniusboy [140]

many increases and decreases but declined overall

6 0

3 years ago

Read 2 more answers

When light goes from one material into another material having a HIGHER index of refractionA) its speed decreases but its wavele

Mnenie [13.5K]

Answer:

E) its speed and wavelength decrease, but its frequency stays the same

Explanation:

First of all, the frequency of a light wave does not depend on the medium, while wavelength and speed do. Therefore, the frequency remains costant.

In particular, the speed of light in a medium is given by:

$v=\frac{c}{n}$

where c is the speed of light in a vacuum and n is the index of refraction. From the formula, we see that v and n are inversely proportional: so, when the light moves into a material with higher index of refraction, its speed decreases.

Moreover, speed is related to wavelength by

$v=\lambda f$

where $\lambda$ is the wavelength and f is the frequency. Since the two quantities are directly proportional, this means that since the speed decreases, the wavelength decreases as well.

So, the correct choice is

E) its speed and wavelength decrease, but its frequency stays the same

5 0

3 years ago

Read 2 more answers

Hermann von Helmholtz said that one hears different pitches because different sound waves trigger activity at different places a

nevsk [136]

Answer:

Place theory.

Explanation:

Place theory explains the different perception of sounds on the basis of the different sound waves. This theory helps to explain how the individual can differentiate different pitch sounds.

The different sound frequency causes vibration at the basilar membrane of the cochlea. The different areas of cochlear membrane gets activated by the different frequency of sound. These different vibration enable to distinguish between high pitch and low pitch sounds.

Thus, the answer is place theory.

7 0

4 years ago

Read 2 more answers