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vodomira [7]
3 years ago
12

A wave has a frequency of 655 he And is traveling at 455m/sec. what is the wavelength

Physics
1 answer:
Vlada [557]3 years ago
3 0

Answer:

v=wavelength ×f

wavelength=v/f=455/655=0.694m

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A girl throws a tennis ball upward with an initial velocity of 4 m/s. What is the maximum displacement of the ball?
Jobisdone [24]

Answer:

0.82 m

Explanation:

The ball is in free fall - uniform accelerated motion with constant acceleration downward, a=g=-9.8 m/s^2 (acceleration of gravity). So we can use the following suvat equation to solve the problem:

v^2-u^2=2as

where

v is the final velocity

u = 4 m/s is the initial velocity

a is the acceleration

s is the displacement

At the maximum displacement, v = 0 (the velocity becomes zero). Substituting and solving for s, we find:

s=-\frac{u^2}{2a}=-\frac{4^2}{2(-9.8)}=0.82 m

8 0
3 years ago
What waves have wavelengths longer than those of visible light? Give an example of how each kind of wave is used.
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3 years ago
Elevator mass 750kg tension on cable 8950n what is the net force action on the elevator
Hunter-Best [27]
The answer to this question i think would be 8950. Do you have any answer choices.
8 0
3 years ago
When two objects of different masses, different temperatures, and different sizes are placed in thermal contact, energy will alw
denpristay [2]

Answer:

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Explanation:

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4 0
3 years ago
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