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3 years ago

What type of wave is sound? a. longitudnal b. surface c. tranverse, or d.. light ? ?

Physics

2 answers:

AVprozaik [17]3 years ago

7 0

Answer:

Sound is a series of compression waves that moves through air or other materials. Sound waves are a longitudinal wave. The speed of sound is about 343 m/s which is much slower than the speed of light.

Explanation:

I hoped this helped

bagirrra123 [75]3 years ago

3 0

A longitudinal wave is a type of sound

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2 years ago

A roller coaster travels around a vertical 8-m radius loop. Determine the speed at the top of the loop if the normal force exert

strojnjashka [21]

Answer:

$v=10m/sec$

Explanation:

From the question we are told that

Radius of vertical r= 8m

Force exerted by passengers is 1/4 of weight

Generally the net force acting on top of the roller coaster is give to be

$F_N+Fg$

where

$F_N =forceof the normal$

$Fg= force due to gravity$

Generally the net force is given to be $FC(force towards center)$

$F_C =F_N + Fg$

$F_N =F_C -Fg$

$F_N=F_C-F_g$

$F_N=\frac{mv^2}{R} -mg$

Mathematical we can now derive V

$m_g + \frac{8m}{4}= \frac{mv^2}{8}$

$\frac{5mg}{4} =\frac{mv^2}{8}$

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3 years ago

What is the mass of an object that requires a force of 182 N to accelerate at a rate of 13 m/s?

Inga [223]

Answer:

$m=14kg$

Explanation:

Hello.

In this case, since the force is defined in terms of the mass and acceleration by:

$F=m*a$

We can easily compute the mass by solving for it:

$m=\frac{F}{a}$

Whereas the force is 182 N (kg*m/s²) and the acceleration is 13 m/s², therefore, we obtain:

$m=\frac{182kg\frac{m}{s^2} }{13\frac{m}{s^2}}\\\\m=14kg$

Best regards.

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3 years ago