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3 years ago

During destructive interference, two waves moving through the same medium will

Physics

2 answers:

ddd [48]3 years ago

6 0

They will amplify eachother.

Phoenix [80]3 years ago

5 0

It will create a smaller amplitude

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Find the resistance of a stereo: current is 7 A voltage is 49 V.

pochemuha

Answer:

R = 7 [amp]

Explanation:

To solve this problem we must use ohm's law which tells us that the voltage is equal to the product of the current by the resistance. In this way, we have the following equation.

V = I*R

where:

V = voltage = 49 [V] (units of volts)

I = current = 7 [amp] (amperes)

R = resistance [ohms]

Now clearing R.

R =V/I

R = 49/7

R = 7 [amp]

5 0

3 years ago

Use the information from the article to answer the question.

natka813 [3]

Formed of ice,rock,and dust

4 0

3 years ago

Read 2 more answers

Why is it a good idea to extend your bare hand forward when you are getting ready to catch a fast-moving baseball?

qaws [65]

Answer:d

Explanation:

It is good to extend your bare hand forward when you are getting ready to catch a fast-moving ball so you can pull your hand back, increasing the time to slow the ball thus decreasing the force.

While catching impulse is being transferred to hands imparting great force, lowering hand would increase the time so that average force decreases and chances to drop the ball also decreases.

4 0

3 years ago

Electrons with energy of 25 eV have a wavelength of ~0.25 nm. If we send these electrons through the same two slits (d = 0.16 mm

kupik [55]

Answer:

The spacing is 5.15 μm.

Explanation:

Given that,

Electron with energy = 25 eV

Wave length = 0.25 nm

Separation d= 0.16 mm

Distance D=3.3 m

We need to calculate the spacing

Using formula of width

$\beta=\dfrac{\lambda D}{d}$

Put the value into the formula

$\beta=\dfrac{0.25\times10^{-9}\times3.3}{0.16\times10^{-3}}$

$\beta=5.15\times10^{-6}\ m$

$\beta=5.15\ \mu m$

Hence, The spacing is 5.15 μm.

7 0

3 years ago

A 1.0 kg object is attached to a 0.50 m string. It is twirled in a horizontal circle above the ground at a speed of 5.0 m/s.

7nadin3 [17]

Given that,

Mass of the object, m = 1 kg

It moves in a circle of radius 0.5 m with a speed of 5 m/s

To find,

The direction of the acceleration.

Solution,

Whenever an object moves in a circular path, the only force that acts on its is centripetal force which is given by the formula as follows :

$F=\dfrac{mv^2}{r}$

The centripetal acceleration acts in the direction of force. It acts along the radius of the circular path. In this figure, the direction of the acceleration is shown at point d.

4 0

3 years ago