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3 years ago

The American Psychological Association is the only organization that can approve psychological research studies.

Physics

1 answer:

pav-90 [236]3 years ago

5 0

Answer: This is False.

Explanation:

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The<br> is the time it takes for a wave to complete one cycle.

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If the coefficient of static friction between your coffee cup and the horizontal dashboard of your car is µs = 0.800, how fast c

Cloud [144]

Answer:

Before start of slide velocity will be 14.81 m/sec

Explanation:

We have given coefficient of static friction $\mu =0.8$

Angle of inclination is equal to $\Theta =tan^{-1}\mu$

$\Theta =tan^{-1}0.8=38.65^{\circ}$

$tan{38.65^{\circ}}=0.8$

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2 years ago

In some situations, matter demonstrates wave behavior rather than particle behavior. This is best illustrated by which phenomeno

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In some situations, matter demonstrates wave behavior rather than particle behavior. This is best illustrated by which phenomenon is:

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An arrow is shot horizontally from the top of a building and it lands 200m from the foot of the building after 10s.Assuming air

Alexandra [31]

The initial velocity of the arrow and the height of the building will be 29.05 m/s² and 781 m respectively.

<h3>What is velocity?</h3>

The change of distance with respect to time is defined as speed. Speed is a scalar quantity. It is a time-based component. Its unit is m/sec.

The given data in the problem is;

u is the initial velocity of fall = ? m/sec

h is the distance of fall = 200 m

g is the acceleration of free fall = 9.81 m/sec²

H is the height of the building

t is the time period = 10 second

According to Newton's second equation of motion,

$\rm h= ut+\frac{1}{2} gt^2 \\\\\ h-\frac{1}{2} gt^2 =ut \\\\ 200 - 0.5 \times(9.81) \times 10^2 = 10 u \\\\ u = - 29.05 \ m/sec$

- ve shows the direction is downward.The magnitude of the initial velocity is found as;

u = 29.05 m/sec

The height of the building

$\rm H= ut+\frac{1}{2} gt^2 \\\\\ H = 29.05 \times 10 + 0.5 \times 9.81 \times 10^2 \\\\ H = 781 \ m$

Hence the initial velocity of the arrow and the height of the building will be 29.05 m/s² and 781 m respectively.

To learn more about the velocity, refer to the link: brainly.com/question/862972

SPJ1

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1 year ago