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ycow [4]
3 years ago
13

PLEASE HELP!

Physics
1 answer:
OverLord2011 [107]3 years ago
3 0
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A parachutist relies on air resistance (mainly on her parachute) to decrease her downward velocity. She and her parachute have a
wlad13 [49]
The resultant force will be equal to difference of her downward force, her weight, and the upward force, the air resistance.
Fnet = 657 - 51.1 x 9.81
= 149.7 N
F = ma
a = F / m
a = 149.7/51.1
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3 0
4 years ago
A 1060-kg car moving west at 16 m/s collides with and locks onto a 1830-kg stationary car. determine the velocity of the cars ju
iren [92.7K]
M1U1 + M2V2 = (M1+M2)V, where M1 is the mass of the moving car, M2 is the mass of the stationary car, U1 is the initial velocity, and V is the common velocity after collision.
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The velocity of the cars after collision will be 5.689 m/s
5 0
3 years ago
Near to the point where I am standing on the surface of Planet X, the gravitational force on a mass m is vertically down but has
Gelneren [198K]

Answer: V = sqrt(2¥h^3)/3

Explanation:

8 0
3 years ago
A cheetah bites into its prey. One tooth exerts a force of 320 N. The area of the point of the tooth is 0.5 cm². The pressure of
mote1985 [20]

Answer:

<h2>640N/cm^2</h2>

Answer D is correct

Explanation:

pressure =  \frac{force}{area}  \\  =  \frac{320}{0.5}  \\  = 640

hope this helps

brainliest appreciated

good luck! have a nice day!

6 0
3 years ago
Two harmonic sound waves reach an overseveer simulatenouslt. the obsever hears the sound intensity rise and fall with a time of
irakobra [83]

Answer:

dF=2.5Hz

Explanation:

From the question we are told that:

Time T=0.2sec

Generally the Period is given as

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Therefore difference in frequency dF

 dF=\frac{1}{T}

 dF=\frac{1}{0.4}

 dF=2.5Hz

4 0
3 years ago
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