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Amiraneli [1.4K]
3 years ago
7

an object at rest will remain at rest and an object in motion stays in straight-line motion unless acted upon by a_____ or unbal

anced force
Physics
1 answer:
LekaFEV [45]3 years ago
5 0
Equal is the answer your looking for
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The variation in the pressure of helium gas, measured from its equilibrium value, is given by ΔP = 2.9 × 10−5 cos (6.20x − 3 000
nadya68 [22]

Answer:

The wavelength of this wave is 1.01 meters.

Explanation:

The variation in the pressure of helium gas, measured from its equilibrium value, is given by :

\Delta P=2.9\times 10^{-5}\ cos(6.2x-3000t)..............(1)

The general equation is given by :

\Delat P=P_o\ cos(kx-\omega t)...........(2)

On comparing equation (1) and (2) :

k=6.2

Since, k=\dfrac{2\pi}{\lambda}

\dfrac{2\pi}{\lambda}=6.2

\lambda=1.01\ m

So, the wavelength of this wave is 1.01 meters. Hence, this is the required solution.

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3 years ago
Ohh by asks zh a. Mans jks shall snnkkksajsiaoksoo
Ahat [919]

Answer:

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Explanation:

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5 0
3 years ago
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Which of the following modifications to a solenoid would be most likely to decrease the strength of its magnetic field?
Goryan [66]

By reading the fine details of the question, carefully and analytically, I have determined that there's no list of modifications to choose from.

The strength of the magnetic field of a solenoid depends on the electric current in its coil windings, the number of wire turns in its coil windings, and the material in its core.

In order to <em>DE</em>crease the strength of its magnetic field, any one or more of these steps could do the job:

-- DEcrease the electric current in its coil windings.  This can be accomplished by decreasing the voltage of the power source that energizes the coil, and/or increasing the resistance of the wire in the coil.

-- DEcrease the number of wire turns in the coil.

-- If the solenoid has anything in its core, change the core to something with a lower magnetic 'permeability'.  An Iron core will produce the greatest magnetic field strength.  Air, vacuum, or NO core will produce the lowest magnetic field strength.

8 0
3 years ago
A car is moving in uniform circular motion. If the car's speed were to double to keep the car moving with the same radius, the a
Anestetic [448]

Answer:

Increase by a factor of 4.

Explanation:

The acceleration of a car moving with speed v in a circle of radius R is given by:

a=\frac{v^2}{R}.

Now if we double the speed v in the equation above, it becomes 2v. Thus:

a=\frac{v^2}{R}\:\: {\rightarrow}\:\: a_n=\frac{(2v)^2}{R}=4\frac{v^2}{R}=4a.

Therefore the acceleration is increased by a factor of 4.

7 0
3 years ago
What is 2 plus 2 and 1 plus 1​
Stels [109]

Answer: 6

Explanation:

Have an awesome amazing day

8 0
2 years ago
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