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3 years ago

Can all waves be distorted, deflected, or changed? Explain your response.

1 answer:

8 0

Yes, all waves can be distorted, deflected, or changed

<span>Waves are a means by which energy travels. Many different particles move in waves. </span>All waves can be changed through interference with waves of similar wavelengths.

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An object experiences an acceleration of 8.5 m/s^2 over a distance of 300 m. After that acceleration it has a velocity of 400 m/

Snezhnost [94]

Answer:

393.6m/s

Explanation:

Given parameters:

Acceleration = 8.5m/s²

Distance = 300m

Final velocity = 400m/s

Unknown:

Initial velocity = ?

Solution:

To solve this problem, we use the expression below;

v² = u² + 2as

v is the final velocity

u is the initial velocity

a is the acceleration

s is the distance

So;

v² - 2as = u²

u² = v² - 2as

u² = 400² - (2 x 8.5 x 300)

u = 393.6m/s

7 0

3 years ago

Read 2 more answers

Larry weighs 300 N at the surface of Earth. What is the weight of Earth in the gravitational field of Larry

Setler [38]

The gravitational force of attraction between two objects is directly proportional to the product of the two masses and inversely proportional to the square of the distance between them.

$F = \frac{GMm}{r^2}$

Where,

G = Gravitational Universal Constant

M = Mass of the Planet

m = Mass of the object

r = Distance

Therefore the amount of force exerted by the first object on the second object is equal to the amount of the force exerted on the second object by the first.

The gravitational force exerted by Larry on the Earth is same as the force exerted on Larry by the Earth.

That is 300N.

4 0

3 years ago

A long, thin solenoid has 390 turns per meter and a radius of 1.20 cm. The current in the solenoid is increasing at a uniform ra

gtnhenbr [62]

To solve this problem it is necessary to apply the concepts related to Faraday's law and the induced emf.

By definition the induced electromotive force is defined as

$\int E dl = -\frac{d\phi}{dt}$

$\int E dl = -(\frac{dB}{dt})A$

Where,

$\phi =$ Electric field

B = Magnetic Field

A = Area

At the theory the magnetic field is defined as,

$B = \mu_0 NI$

Where,

N = Number of loops

I = current

$\mu_0 =$ Permeability constant

We know also that the cross sectional area, is the area from a circle, and the length is equal to the perimeter then

A = \pi r^2

l = 2\pi r

Replacing at the previous equation we have that

$E (2\pi r) = \mu_0 n (\frac{di}{dt})(\pi R^2)$

Where,

R = Radius of the solenoid

r = The distance from the axis

Re-arrange to find the current in function of time,

$\frac{di}{dt} = \frac{Er}{\mu_0 NR^2}$

Replacing our values we have

$\frac{di}{dt} = \frac{(8.00*10^{-6})(0.0348)}{(4\pi*10^{-7})(390)(1.2*10^-2)^2}$

$\frac{di}{dt} = 3.94487A/s$

8 0

3 years ago

The amount of momentum that an object has is dependent on what ____ is moving and how ___ it is moving.

ivann1987 [24]

P=mv
it is depended on mass and velocity

5 0

3 years ago

Read 2 more answers

If you ride an elevator moving forward with a constant speed, is your apparent weight same,greater than or less than your weight

wlad13 [49]

If the elevator's speed is constant (in ANY direction) and you can't see out of it, then there's NO measurement you can make inside that will tell you that it's moving. Any weight you measure is normal.

6 0

3 years ago