4 years ago

How long did it take until all the starting material was gone?

Physics

1 answer:

Viktor [21]4 years ago

6 0

Time = (amount you started with) / (rate at which it disappeared) .

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Reaction _______ refers to the tendency of a reaction to occur without the application of outside force or energy to sustain the

babymother [125]

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3 years ago

Starting with a constant velocity of 45 km/h, a car accelerates for 35 seconds at an acceleration of 0.45 m/s2 . What is the vel

DENIUS [597]

Answer:

28.3 m/s

Explanation:

Vi = 45 Km/h = 12.5 m/s

Vf - Vi = at

Vf -12.5 = 0.45(35)

Vf= 28.3 m/s

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3 years ago

ehidna [41]

Answer:

$a = -1.6\ m/s^2$

Explanation:

<u>Accelerated Motion</u>

It occurs when an object changes its speed over time. If the changes in speed are uniform, then the acceleration is constant, positive if the speed increases, negative if the speed decreases.

The acceleration is calculated as follows:

$\displaystyle a=\frac{v_f-v_o}{t}$

The aeroplane starts with a speed of vo=62 m/s and reaches a speed of vf=6 m/s in t=35 s.

The acceleration is:

$\displaystyle a=\frac{6-62}{35}=-\frac{56}{35}$

$\mathbf{a = -1.6\ m/s^2}$

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3 years ago

At 25 mph, it will take you about how many feet to stop your car?

sp2606 [1]

It will take approximately 8 - 10 feet.

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3 years ago