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mr_godi [17]
3 years ago
9

What is the formula for finding the acceleration?

Physics
1 answer:
xenn [34]3 years ago
3 0
The correct answer is A=V-U/T
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You dip your finger into a pan of water twice each second, producing waves with crests that are separated by 0.15 m. Determine t
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Frequency = rate of sploosh = 2 per second  =  2 Hz.

Period = ( 1/frequency ) =  1/2  second

Speed = (wavelength) x (frequency) = (0.15m) x ( 2/sec) = 0.075 m/s .

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A solar charging system produces 14.5 volts on a sunny day the currents flows through the circuit at 43.5 ramps what is the resi
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A cat’s crinkle ball toy of mass 15g is thrown straight up with an initial speed of 3m/s . Assume in this problem that air drag
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Answer:

(a)0.0675  J

(b)0.0675 J

(c)0.0675 J

(d)0.0675 J

(e)-0.0675 J

(f)0.459 m

Explanation:

15g = 0.015 kg

(a) Kinetic energy as it leaves the hand

E_k = \frac{mv^2}{2} = \frac{0.015*3^2}{2} = 0.0675  J

(b) By the law of energy conservation, the work done by gravitational energy as it rises to its peak is the same as the kinetic energy as the ball leave the hand, which is 0.0675 J

(c) The change in potential energy would also be the same as 0.0675J in accordance with conservation law of energy.

(d) The gravitational energy at peak point would also be the same as 0.0675J

(e) In this case as the reference point is reversed, we would have to negate the original potential energy. So the potential energy as the ball leaves hand is -0.0675J

(f) Since at the maximum height the ball has potential energy of 0.0675J. This means:

mgh = 0.0675

0.015*9.81h = 0.0675

h = 0.459 m

The ball would reach a maximum height of 0.459 m

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3 years ago
In some circumstances,science will answer questions about what is good and what is evil true or false?
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If you wanted to know the location of a vehicle that ran out of gas after taking a zigzag route through the city, which quantity
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the vehicles displacement, since displacement deals with position

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