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elena-s [515]
3 years ago
8

What is the speed of a wave frequency of 300hz and a wavelength of 25M

Physics
1 answer:
tia_tia [17]3 years ago
8 0

Answer:

7500 m/s

Explanation:

We can use the equation velocity of a wave equals wavelength times  frequency.  Therefore, v = wavelength*f = (25 m)(300 Hz) =  m/s7,500

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If measurements of gas are 75 L and 300 kIlopascals and then the gas is measured is second time and found to be 50 L, describe w
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Answer:

The pressure must have increased in the process

Explanation:

The State Equation for gasses reads: P*V=n*R*T

where P is the gas' pressure, V its volume, n the number of moles of gas,  R the gas constant and T the temperature in degrees Kelvin.

If the temperature of the gas doesn't change in the described process, the right hand side of the equation stays the same. If that is the case, given that when the Volume of the gas diminishes from 75 liters to 50 liters, then the pressure must have increased to keep that product "P * V" constant:

P_i*V_i=P_f*V_f\\75 *300=50*X\\X=\frac{75*300}{50} =450

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3 years ago
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Julian tests four springs and records the results in the table
Tju [1.3M]

Answer:

list of spring in order of increasing spring constant is given by,

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Explanation:

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Magnitude of Force applied on the spring is given by,

F = k x

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k = F/x

k = 60 / 0.3

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Spring Y:

Magnitude of Force applied on the spring is given by,

F = k x

Where, F = force applied

k = spring constant

x displacement

k = F/x

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Spring Z:

Magnitude of Force applied on the spring is given by,

F = k x

Where, F = force applied

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W, Y, X, Z





8 0
3 years ago
Read 2 more answers
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