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umka2103 [35]
2 years ago
12

Ploughing field with harrow pulled by a tractor is a modern technology​

Physics
1 answer:
Setler79 [48]2 years ago
8 0

Answer:

Ploughing field with harrow pulled by a tractor is a modern technology

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I will mark as the brainliest answer<br><br>plz 8,9,10​
blagie [28]

Answer:

8.  acceleration = \dfrac{d(velocity)}{d(time)}  = 1 unit .

9. acceleration = \dfrac{d(velocity)}{d(time)}  = -1 unit.

10. acceleration = \dfrac{d(velocity)}{d(time)}  = 0 units.

Explanation:

8. i) acceleration = velocity / time

  ii) In this figure velocity = time

  iii) therefore acceleration = \dfrac{d(velocity)}{d(time)} = 1 unit .

9. i) acceleration = velocity / time

  ii) In this figure 4 = m + 5, therefore m = -1

     therefore velocity = (-0.5 \times time) + 5

  iii) therefore acceleration = \dfrac{d(velocity)}{d(time)}  = -1 units.

10.) velocity is constant at 2

     therefore acceleration = \dfrac{d(velocity)}{d(time)}  = 0 units

5 0
3 years ago
A fly travels along the x-axis. His starting point is x = 16 m and his ending point 15x = - 25 m. His flight lasts 4.0 seconds H
gogolik [260]

Explanation:

Starting position at x  = 16m

Ending position at x  = -25m

Time of flight  = 4s

Unknown:

Distance flown  = ?

Displacement  = ?

Speed  = ?

Velocity  = ?

Solution:

To find the distance flown, we should understand that the body is moving on the x - plane;  

  So distance  = 16 + 25  = 41m

Displacement is 41m to the left or -x axis

Speed is the distance divided by the time taken;

      Speed  = \frac{distance}{time}   = \frac{41}{4}   = 10.25m/s

Velocity is 10.25m/s along -x axis

5 0
2 years ago
If a scientist unknowingly breaks the law, he is guilty of _____.
Margaret [11]

Answer:

noncompliance

Explanation:

If a scientist unknowingly breaks the law, he is guilty of <u>noncompliance</u>

8 0
3 years ago
Read 2 more answers
The engine will run at 36,000 J in 2 minutes. What is the engine power?
taurus [48]

I'm not sure if this is correct but try 18,000

8 0
3 years ago
There are several types of inclined planes. A _______ is made by placing two inclined planes back to back. A ______ is made by w
Colt1911 [192]
No the answer was c. it is a (wedge,screw)
6 0
3 years ago
Read 2 more answers
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