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velikii [3]
2 years ago
13

A 62.3 N force pulls an object at an angle of 9 = 22.0° to its direction of horizontal motion. It moves a

Physics
1 answer:
Debora [2.8K]2 years ago
8 0

W = F cos α . d

W = 62.3 cos 22 . 12.1

W = 698.94 J

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olga_2 [115]

Answer:

The correct answer is Option A.

7 0
3 years ago
A ball is thrown up onto a roof, landing 4 sec later at height of 20m above the release level. The balls path just before landin
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3 years ago
A speed does not involve the element of
guajiro [1.7K]
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6 0
3 years ago
A proposed ocean thermal-energy conversion (OTEC) system is a heat engine that would operate between warm water (16°C) at the oc
LenaWriter [7]

Answer:

3.46 %

Explanation:

We have given cooler temperature that is T_c = 6°C =273+6=279 K

And the warm temperature of water that is T_h=16^{\circ}C=16+273=289\ K

The maximum possible efficiency is given by \eta =1-\frac{T_c}{T_h}

So maximum efficiency \eta =1-\frac{T_c}{T_h}=1-\frac{279}{289}=0.0346=3.46 %

6 0
3 years ago
An electron travels 1.92 m in 4.47 × 10−8 s. How fast is it traveling?<br> Answer in units of m/s.
malfutka [58]
Speed = (distance covered) / (time to cover the distance).

             =  (1.92 meters)  /  (4.47 x 10⁻⁸ second)

            = 42,950,000 meters/second  (rounded to the nearest 10,000 m/s)

That's about  96.1 million miles per hour, or about 14% of the speed of light.


6 0
3 years ago
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