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Sladkaya [172]
3 years ago
6

If you were to yell at a canyon wall, you would hear yourself a short time later. This is because sound can be

Physics
2 answers:
mojhsa [17]3 years ago
5 0
The answer is answer b refracted

Nadusha1986 [10]3 years ago
3 0
Reflected is the answer
hope this helps:)

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A cyclist turns a corner with a radius of 50m at a speed of 10m/s. What is the cyclist's acceleration?
miv72 [106K]

2m/s²

Explanation:

Given parameters:

Radius = 50m

Speed = 10m/s

Unknown:

Acceleration of the cyclist

Solution:

The acceleration of the cyclist is directed inside of the corner because his motion is inward. This is a form of centripetal acceleration;

Centripetal acceleration is given by;

     a = \frac{v^{2} }{r}

v is the velocity

r is the radius

   a =  \frac{10^{2} }{50} = 2m/s²

learn more:

Acceleration brainly.com/question/3820012

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3 0
3 years ago
The frequency of the George Washington Bridge is 2.05 Hz. What is its period?
Zina [86]

Answer: 0.5 seconds

Explanation:

Given that:

Frequency of the George Washington Bridge F = 2.05 Hz

Period T = ?

Recall that frequency is the number of cycles a wave can complete in one second. Hence, frequency is the inverse of period.

i.e F = 1/T

2.05Hz = 1/T

T = 1/2.05Hz

T = 0.488 seconds (Rounded to the nearest tenth as 0.5seconds)

Thus, the period of the George Washington Bridge is 0.5 seconds

6 0
3 years ago
Difference between artificial magnet and natural magnet?? ​
marissa [1.9K]

Answer:

A natural magnet is a magnet that occurs naturally in nature. Artificial magnets are magnets made by people. ... An example of a natural magnet is the lodestone, also called magnetite. Other examples are pyrrhotite, ferrite, and columbite.

6 0
3 years ago
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A bullet with a mass of 0.1 kg is travelling at
mel-nik [20]

The block with the bullet lodged in the block is now travelling at 2.133 m/s.

<h3>What is momentum conservation principle?</h3>

When there is no external force acting on the system, the momentum remains conserved.

For inelastic collision, after collision both objects travel with common speed.

m1u1 + m2u2 =(m1 +m2)v

Substitute initial velocity of bullet u1 =320 m/s , initial velocity of block u2 =0, mass of bullet m1 = 0.1 kg and mass of block m2 = 14.9 kg.

Solve for the final velocity of bullet,

0.1 x 320 + 14.9 x 0 = (0.1 +14.9) x v

v = 2.133 m/s

Thus, the  block with the bullet lodged in block now travelling at 2.133 m/s.

Learn more about momentum conservation principle.

brainly.com/question/14033058

#SPJ1

6 0
2 years ago
Where in the cell can you find the location of inherited traits?
sashaice [31]

Answer:

D.N.A

Explanation:

The d.n.a is where all the heriditary information is stored.

5 0
3 years ago
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