2 years ago

How has technology changed farming?

Physics

1 answer:

umka2103 [35]2 years ago

6 0

The answer is B: it has made repetitive tasks easier

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10. A cyclist travels at 15m/s for 4 minutes. How far does she go?

stiks02 [169]

Answer:

speed = distance

time

15 = X

15 × 4 = 60

3 0

3 years ago

Two vehicles approach an intersection: a truck moving eastbound at 16.0 m/s and an SUV moving southbound at 20.0 m/s. Suppose th

mario62 [17]

Answer:25.61 m/s

Explanation:

Given

truck is moving eastbound with a velocity of 16 m/s

Velocity of truck $v_t=16\hat{i}$

SUV is moving south with a velocity of 20 m/s

Velocity of SUV in vector form $v_s=-20\hat{j}$

Velocity of truck relative to the SUV

$v_{ts}=v_{t}-v_s$

$v_{ts}=16\hat{i}-(-20\hat{j})$

Magnitude of relative velocity is

$|v_{ts}|=\sqrt{16^2+20^2}$

$|v_{ts}|=25.61\ m/s$

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2 years ago

Convert 70 mi/h to m/s. 1 mi = 1609 m. Answer in units of m/s. Plz help me now

melisa1 [442]

Answer:

70mi/h

1mile =1609 meters

1hour=3600 seconds

So,

70×1609/3600

112,630/3600

31.286 m/s

Hope this helps you

6 0

3 years ago

If you are asked to determine an object’s speed, what information must you have?

o-na [289]

Speed = Distance/Time. So you are required to know A. Distance and period of time

3 0

2 years ago

When light travels through a small hole, it appears to be an observer that the light spreads out, blurring the outline of the ho

3241004551 [841]

Answer:

support lights as a wave

Explanation:

In the model of light as a particle, the experimenter would expect to see one small hole of light emerging on the wall. However, as the light spreads out, it behaves much like a wave that diffracts when going through a small hole.

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2 years ago