3 years ago

Which describes a high frequency wave?

Physics

1 answer:

pav-90 [236]3 years ago

5 0

B.
many wavelengths pass a given point in one second

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True or False - Solar energy comes from wind energy?

vladimir1956 [14]

False. solar comes from the sun while wind energy comes from the wind. hope this helps!

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4 years ago

N 1800kg car has an of 3.8m/s? What is it on the car? acceleration force acting

nevsk [136]

Answer:

6840 N

Explanation:

The force acting on the car can be found by using Newton's second law:

F = ma

where

F is the net force on the car

m is the mass of the car

a is its acceleration

For the car in this problem,

m = 1800 kg

$a=3.8 m/s^2$

Substituting,

$F=(1800)(3.8)=6840 N$

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3 years ago

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Vanyuwa [196]

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3 years ago

While in the air (neglecting air resistance) the

Shalnov [3]

Anwser

For general projectile motion with no air resistance, the horizontal component of a projectile's velocity ... D. first decreases and then increases ... E. The speed of the object is constant but its velocity is not constant. C ... Neglecting air resistance, when the package hits the ground

Explanation:

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3 years ago

A 2.40 kg stone is sliding in the +x-direction on a horizontal, frictionless surface. It collides with a 4.00 kg stone at rest.

tester [92]

Answer:

4.32 kg.m/s

Explanation:

SInce the 2.4 kg stone is mobing at speed of 3.6m/s at an angle of 30 degree measured from the x+ direction toward y+ direction. Its y-component momentum is product of its velocity in the y-direction and its mass

$P_y = m*v_y = m*v*sin(\theta)$

$P_y = 2.4*3.6*sin(30)$

$P_y = 2.4*3.6*0.5 = 4.32 kg.m/s$

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3 years ago