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igomit [66]
3 years ago
15

Derive the relation between wavelength, frequency and speed of sound.​

Physics
1 answer:
natali 33 [55]3 years ago
3 0

Explanation:

sorry I need some points foe this

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How is it possible for two objects to have the same momentum but different velocities give an example
castortr0y [4]
Momentum is
p = mv, where m is the mass and v is the speed.
So, if two objects have the same momentum but different speeds, the must have different masses as well.
v1/v2 = m2/m1
The example is a car and a truck. Car has the mass 1000 kg and velocity 100 m/s, and truck has the mass 5000 kg and velocity 20 m/s. Use the formula above to determine is it true that they have the same momentum:
(100 m/s) / (20 m/s) = (5000 kg) / (1000 kg)
5 = 5
So, the example is correct.
Hope this helps! Good luck!
4 0
3 years ago
This question looks so simple , but I don’t want to get it won’t could I get help .
Doss [256]

Answer:

I would think a vector but double check that before turning it in

Explanation:

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3 years ago
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Why does a tail appear when a comet nears the sun?
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3 0
4 years ago
A potential drop of 50. volts is measured across a
ollegr [7]

Answer:

Power, P is equal to 10 watts.

Explanation:

Given the following parameters;

Voltage drop, V = 50volts.

Resistance, R = 250ohms.

Power, P =?

The power developed in an electrical circuit is given by;

P = IV ......equation 1

But we also know that;

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, V = IR

Making I the subject of formula;

I = V/R

Substituting into equation 1;

P = (V²)/R

P = (50²)/250

P = 2500/250

P = 10 watts.

5 0
3 years ago
A book with a mass of 1.5 kg rests on the edge of a desk 0.75 m above the
r-ruslan [8.4K]

Answer: 11.03 J

Explanation:

Just did it on apex

3 0
3 years ago
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