3 years ago

All waves transmit energy. Only one type of wave does not require a medium to transmit energy. That is a _____wave?

Physics

2 answers:

SpyIntel [72]3 years ago

8 0

Sound because it’s that one

Dmitrij [34]3 years ago

6 0

Answer:

sound waves

Explanation:

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A charge Q = 1.96 10-8 C is surrounded by an equipotential surface with a surface area of 1.18 m2. what is the electric potentia

den301095 [7]

Answer:

V = 575.6 Volts

Explanation:

As we know that surface area of the equi-potential surface is given as

$A = 1.18 m^2$

so we will say

$A = 4\pi r^2$

$1.18 = 4\pi r^2$

$r = 0.31 m$

Now the potential due to a point charge is given as

$V = \frac{kQ}{r}$

$V = \frac{(9\times 10^9)(1.96 \times 10^{-8})}{0.31}$

$V = 575.6 Volts$

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3 years ago

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tatiyna

Answer:

Explanation:

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3 years ago

A __________ is any path through which electrons can flow.

guapka [62]

An "Electric Circuit" is any path through which electrons can flow.

Hope this helps!

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3 years ago

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A300.00kg sepeedboat is moving accross a lake at35.0m/s

Studentka2010 [4]

Use p = mv

p = momentum
m = mass
v = velocity

p = 300 x 35
p = 10 500 m/s

Therefore the answer is b) 10 500 m/s since it's not talking about acceleration.

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3 years ago

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A 20 kω resistor is connected in series with an initially uncharged 100 μf capacitor and a 5 v battery. What is the charge on th

madam [21]

Hi there!

We can use the equation for the charge of a charging capacitor:
$q(t) = C\epsilon( 1 - e^{-\frac{t}{RC}})$

Using Capacitor equations:
$C = \frac{Q}{V}}\\\\Q = CV$

Therefore, Cε equals the steady-state charge of the capacitor (the function approaches this value as t ⇒ ∞.

We can plug in the givens and solve.
$\epsilon = 5 V\\\\C = 100\mu F = 0.0001 F$

$Q = C \epsilon = (0.0001)(5) = \boxed{0.0005 C}$

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2 years ago