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3 years ago

Net force = ?

Physics

1 answer:

Snezhnost [94]3 years ago

7 0

Answer:

A. the total net force is 14

B. the total net force is 15

Explanation:

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Earth's _____ cycle moves water from one reservoir to another. This cycling of materials is one of Earth's dynamic processes.

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Earth's HYDROLOGIC cycle moves water from one reservoir to another.

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3 years ago

Read 2 more answers

A) On which hemisphere does Bhutan lie on the earth?

Pachacha [2.7K]

Answer:

Northern Hemisphere

Explanation:

The latitude of Bhutan is 27.5142° N, placing the country in the northern hemisphere above the equator

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3 years ago

The annoying sound from a mosquito is produced when it beats its wings at the average rate of 600. wingbeats per second. What is

jok3333 [9.3K]

The frequency is exactly the rate at which the bug beats its wings.
If that "600" that you mentioned is 600 beats per second, then
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4 years ago

A worker on the roof of a house drops his 0.46 kg hammer, which slides down the roof at constant speed of 9.88 m/s. The roof mak

nekit [7.7K]

Answer:

The horizontal distance travelled in that time lapse is 12.94 m

Explanation:

In order to solve this problem, we'll need:

The horizontal speed
the time the hammer takes to fall from the roof to the ground

At the lowest point of the roof, the hammer has a 9.88 m/s speed that makes an angle of 27° with the horizontal, so we can calculate the horizontal and vertical speed with trigonometry. If we take right as x positive and down as y positive we get

$v_{x}=v*cos(27)=9.88 m/s *cos(27)=8.80 m/s \\v_{y}=v*sen(27)=9.88 m/s *sen(27)=4.49 m/s$

Now, we make two movement equation as we have a URM (no acceleration) in x and an ARM (gravity as acceleration) in y. We will wisely pick the lowest point of the roof as the origin of coordinates

$x(t)=8.8 m/s *t$

$y(t)=4.49m/s*t+\frac{1}{2}*9.8m/s^{2}*t^{2}$

Now we calculate the time the hammer takes to get to the floor

$17.1m=4.49m/s*t+\frac{1}{2}*9.8m/s^{2}*t^{2}\\t=1.47s$ or $t=-2.38s$

Now, we keep the positive time result and calculate the horizontal distance travelled

$x(1.47s)=8.8m/s*1.47s=12.94m$

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3 years ago

What is my purpose?

castortr0y [4]

As Rene Descartes - french mathematician of Cartesian graphs - said "Cogito ergo sum". I think, therefore I am.
This can be adapted to I think therefore I am, I think ... as a "geeky joke".

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3 years ago