you can produce a sound by plucking a string or by blowing into a pipe. how are these two sounds different

Physics

1 answer:

Tamiku [17]2 years ago

5 0

Explanation:

both are different types of energy. one is elastic p.e while the other one is made by change in sound waves

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A car is traveling at a velocity of 13.5 m/sec (30 mph) north on a straight road. The mass of the car is 1,000 kg. Calculate the

Nat2105 [25]

Answer:

<em> The momentum of the body would be 13500 kg .m/sec</em>

Explanation:

What Momentum Entails

momentum is a property that is possed by all moving objects, it is a product of mass and velocity. A moving object has a magnitude which is the mass of the body and direction which is the velocity towards a certain direction, so it is a vector quantity

Step by Step Calculation

The momentum of a body can be gotten from the expression below;

p = m x v

where p is the momentum

m is the mass of the body = 1000 kg

v is the velocity = 13.5 m/sec

Given these parameters our momentum would be;

p = 1000 kg x 13.5 m/sec

p = 13500 kg . m/sec

Therefore the momentum of the body would be 13500 kg. m/sec

6 0

3 years ago

Bob walks 290 m south, then jogs 630 m southwest, then walks 290 m in a direction 26 ∘ east of north.

solong [7]

whos spying on bob O.o

3 0

2 years ago

Could a car drive on a frictionless surface? Explain using the terms action

Julli [10]

Answer:

No, it cannot. The car needs the friction of the surface to drive because the car pushes the surface backwards, and the surfaces makes a reaction force pushing the car forward, and that works because of the friction. In a frictionless surface the tires would rotate in the same place

7 0

2 years ago

Identrying the speed of the Cart

aleksklad [387]

The speed of the cart after 3 seconds of Low fan speed is equal to 54 cm/s.

<h3>How to calculate the speed?</h3>

Mathematically, speed can be calculated by using this formula;

Speed = distance/time

At Low fan speed after 3 seconds, the distance covered is 162 cm:

Speed = 162/3

Speed = 54 cm/s.

At Medium fan speed after 5 seconds, the distance covered is 600 cm: