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3 years ago

when Jackson throws a baseball in a straight path, what two forces cause the ball to eventually stop moving?

2 answers:

5 0

#1). Air resistance while it's still in the air

-- gravity eventually brings it down to the ground,
but doesn't make it stop moving

#2). Friction with the grass after it hits the ground.

nikklg [1K]3 years ago

3 0

Resistance (from the air) and gravity

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3 years ago

Which process is a form of mechanical weathering?

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3 years ago

A seagull flies at a velocity of 9.00 m/s straight into the wind. (a) if it takes the bird 20.0 min to travel 6.00 km relative t

enot [183]

Here we will the speed of seagull which is v = 9 m/s

this is the speed of seagull when there is no effect of wind on it

now in part a)

if effect of wind is in opposite direction then it travels 6 km in 20 min

so the average speed is given by the ratio of total distance and total time

$v_{avg} = \frac{6000}{20*60}$

$v_{avg} = 5m/s$

now since effect of wind is in opposite direction then we can say

$V_{net} = v_{bird} - v_{wind}$

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Part b)

now if bird travels in the same direction of wind then we will have

$v_{net}= v_{bird} + v_{wind}$

$v_{net} = 9 + 4 = 13 m/s$

now we can find the time to go back

$time = \frac{distance}{speed}$

$time = \frac{6000}{13}$

$time = 7.7 minutes$

Part c)

Total time of round trip when wind is present

$T = t_1 + t_2$

$T = 20 + 7.7 = 27.7 min$

now when there is no wind total time is given by

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3 years ago

What type of general wave requires a medium for the wave to travel through

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3 years ago

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Answer:

Explanation:

It's saying what you think

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3 years ago