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3 years ago

An earthquake sends a seismic wave through the ground. What is the medium? ANSWER QUICK!

Physics

1 answer:

konstantin123 [22]3 years ago

6 0

Answer:

THE GROUND IS THE MEDIUM OF SEISMIC WAVES

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Calculate the displacement of the following components:

Margaret [11]

Answer:

zero displacement

its returnin to the starting point.

5 north 5 south

4 0

3 years ago

How can we find velocity?*

adell [148]

Answer: discplacement/change in time = average velocity.

Explanation:

There is a formula for velocity which is given above

5 0

3 years ago

for every 120 joules of energy input a car waste 85 joules, find the useful energy output of the car?

harina [27]

Answer:

Useful Output = 35 J

Explanation:

The useful energy output of the car must be equal to the difference between the total input energy supplied to the car and the energy wasted by the car:

Useful Output = Total Input - Waste

where,

Total Input = 120 J

Waste = 85 J

Therefore,

Useful Output = 120 J - 85 J

<u>Useful Output = 35 J</u>

7 0

3 years ago

A long solenoid has 103 turns/cm and carries current i. An electron moves within the solenoid in a circle of radius 2.60 cm perp

Aneli [31]

Answer:

0.23348 A

Explanation:

B = Magnetic field

v = Velocity of electron = $1.38\times 10^7\ m/s$

q = Charge of electron = $1.6\times 10^{-19}\ C$

$\mu_0$ = Vacuum permeability = $4\pi \times 10^{-7}\ H/m$

r = Radius of circle = 0.026 m

N = Number of turns = 103 turns/cm = $103\times 100\ turns/m$

I = Current

The magnetic and centripetal force will be balanced

$Bqv=m\frac{v^2}{r}\\\Rightarrow B=\frac{mv}{qr}$

The magnetic field in solenoid is given by

$B=N\mu_0 I\\\Rightarrow I=\frac{B}{N\mu_0}$

From the first equation

$I=\frac{\frac{mv}{qr}}{N\mu_0}\\\Rightarrow I=\frac{mv}{N\mu_0qr}\\\Rightarrow I=\frac{9.11\times 10^{-31}\times 1.38\times 10^7}{103\times 100\times 4\pi \times 10^{-7}\times 1.6\times 10^{-19}\times 0.026}\\\Rightarrow I=0.23348\ A$

The current in the solenoid is 0.23348 A

8 0

3 years ago

A student switches the torch on and sees that it gives out a bright light.

garik1379 [7]

Answer:

no more fire duhh

Explanation:

3 0

3 years ago

Read 2 more answers