3 years ago

What is the HORIZONTAL component of a vector with a magnitude of 125 m/s and an angle of 25 degrees?

Physics

1 answer:

Vlad1618 [11]3 years ago

6 0

Answer:

113.29 m/s

Explanation:

I think its this answer choice, hope I'm not too late answering.

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an object moving at 10. km/hr has a kinetic energy of 10. J. what is the kinetic energy of the same object if it is moving at 20

Schach [20]

Kinetic energy is related to velocity by:
KE = (1/2)mv^2

solve for mass m
10 = (1/2)m(10)^2
10 = (1/2)m(100)
10= 50m
10/50 = m
1/5 = m

at 20 km/hr

KE = (1/2)(1/5)(20)^2
KE = (1/10)(400)
KE = 40 J

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3 years ago

A 0.144-kg baseball is moving toward home plate with a speed of 43 m/s when

algol [13]

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3 years ago

Which of the following best represents potential energy being converted to kinetic energy? A thrown baseball lands on the ground

skelet666 [1.2K]

If I am correct a <span>child holds a toy above her head and then lets it fall to the ground. </span>

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3 years ago

An Airbus A350 is initially moving down the runway at 6.0 m/s preparing for takeoff. The pilot pulls on the throttle so that the

alexdok [17]

Answer:

t=67.7s

Explanation:

From this question we know that:

Vo = 6m/s

a = 1.8 m/s2

D = 1500m

And we also know that:

$X=V_{o}*t + \frac{a*t^{2}}{2}$ Replacing the known values:

$1500=6t+0.9*t^{2}$ Solving for t we get 2 possible answers:

t1 = -44.3s and t2 = 67.7s Since negative time represents an instant before the beginning of the movement, t1 is discarded. So, the final answer is:

t = 67.7s

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3 years ago

The water in the plumbing in a house is at a gauge pressure of 300,000 pa. What force does this cause on the top of the tank ins

liraira [26]

Answer:

60 000 N

Explanation:

1 pa = 1 N/m^2

you have 300 000 of these = 300 000 N /m^2

but only an area of .2 m^2

300 000 N / m^2 * .2 m^2 = 60 000 N

3 0

1 year ago