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3 years ago

Into how many main groups are fish divided?

Physics

1 answer:

Margarita [4]3 years ago

3 0

Answer:

Fish are divided into three main groups, which include Cartilaginous fish, Bony fish, and Lobe-finned fish.

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3 years ago

What factors affect attractive force

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4 years ago

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The parachute on a drag racing car deploys at the end of a run. If the car has a mass of 820 kg and the car is moving 36 m/s, wh

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In order to determine the required force to stop the car, proceed as follow:

Calculate the deceleration of the car, by using the following formula:

$v^2=v^2_o-2ax$

where,

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Solve the equation above for a, replace the values of the other parameters and simplify:

$\begin{gathered} a=\frac{v^2_o-v^2}{2x} \\ a=\frac{(36\frac{m}{s})^2-(0\frac{m}{s})^2}{2(980m)}=0.66\frac{m}{s^2} \end{gathered}$

Next, consider that the formula for the force is:

$F=ma$

where,

m: mass of the car = 820 kg

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Replace the previous values and simplify:

$F=(820kg)(0.66\frac{m}{s^2})=542.20N$

Hence, the required force to stop the car is 542.20N

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1 year ago

Which of the outer planets would you most likely visit? Why? What would you see on your visit?

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3 years ago

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4 years ago