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DENIUS [597]
3 years ago
9

Whether calculating speed or acceleration, this data is required

Physics
1 answer:
Roman55 [17]3 years ago
8 0
If an object is changing it is called velocity - whether by a constant amount or a varying
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A cadillac escalade has a mass of 2 569.6 kg, if it accelerate at 4.65m/s2 what is the net force of the car
anygoal [31]
Force is equal to mass multiplied by acceleration, therefore 
F=ma
m=2569.6 kg
a=4.65m/s^2
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3 0
3 years ago
A small first-aid kit is dropped by a rock climber who is descending steadily at 1.9 m/s. After 2.4 s, what is the velocity of t
Genrish500 [490]

Answer:

v=-21.65 m/s

Explanation:

From the exercise we have:

v_{o}=1.9m/s\\ g=9.81 m/s^{2}\\ t=2.4s

To find the velocity after 2.4s we need to use the following formula:

v=v_{o}+gt

v=1.9m/s-(9.81m/s^{2})(2.4s)=-21.65m/s

The negative sign means that the kit is going down.

6 0
3 years ago
Read 2 more answers
Audio frequency range of a human ear is 20Hz - 20000 Hz. Express the range in terms of time period ? Answer needed urgently. Pl.
Feliz [49]
Using the term c in this case is a little confusing. It is more generic to use a general velocity, v. That way, in this case, we know to use the speed of sound. 

wavelength*frequency=v 

wavelength_20Hz = (345 m/s)/(1/20s) 

<span>wavelength_20kHz = (345 m/s)/(1/20000s)


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5 0
3 years ago
A rubber band that has been stretched has gained ____ energy
Dafna11 [192]

Answer: potential

Explanation:

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Someone please help me<br>20 POINTS
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