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Serhud [2]
3 years ago
15

Amanda then used an inclined plane to push the same crate into the truck. She exerts a force of 77.5N a distance of 3.1m. What i

s the work done on the crate?
Physics
1 answer:
Kazeer [188]3 years ago
8 0

Answer: 240.25joules

Explanation:

Work is done when force is applied on an object over a distance. It is measured in joules.

Thus, Workdone = Force x distance

Since, Work = ? (unknown value)

Force = 77.5N

Distance = 3.1metres

Workdone = 77.5 N x 3.1metres

= 240.25 joules

Thus, Amanda did a work of 240.25joules on the crate

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One of the reasons you love your home is because every side of your home faces South. One day, while talking on the phone, you h
ExtremeBDS [4]

The bear is white in color because it is a polar bear.

<h3>What are the color of bears?</h3>

Bears are very large carnivorous animals found around the cold regions of the Arctic or North Pole.

The color of bears, may be brown, black or white depending on how far North the bears are found.

Bears found close to the Arctic or North pole are white polar bears.

Based on the description of the house, every side of the home faces South meaning that the individual lives in the North pole.

Therefore, the color of the bear will be white.

in conclusion, polar bears are white in color.

Learn more about polar bears at: brainly.com/question/21618662

#SPJ1

8 0
2 years ago
You throw an 18.0 N rock into the air from ground level and observe that, when it is 15.0 m high, it is traveling upward at 17.0
stellarik [79]

Answer:

Vi = 24.14 m/s

Explanation:

If we apply Law of Conservation of Energy or Work-Energy Principle here, we get: (neglecting friction)

Loss in K.E of the Rock = Gain in P.E of the Rock

(1/2)(m)(Vi² - Vf²) = mgh

Vi² - Vf² = 2gh

Vi² = Vf² + 2gh

Vi = √(Vf² + 2gh)

where,

Vi = Rock's Speed as it left the ground = ?

Vf = Final Speed = 17 m/s

g = 9.8 m/s²

h = height of rock = 15 m

Therefore,

Vi = √[(17 m/s)² + 2(9.8 m/s²)(15 m)]

Vi = √583 m²/s²

<u>Vi = 24.14 m/s</u>

4 0
4 years ago
What is the correct term for the flow of charged particles?
olasank [31]

Answer: An electric charge

Explanation:

Because it is carried by charged particles

5 0
3 years ago
Read 2 more answers
What is the electric power used by an appliance if the current is 2 A and the voltage is 50 volts? Show work and include all uni
dem82 [27]
Both the answers from "Big D" and "N9KXF" are correct, but not complete. There is one aspect that needs to be remembered for AC power - the phase relationship between the voltage and current. 

<span>For AC power, the more complete equation for power is P = V * I * cosx, where x is the phase angle between voltage and current. </span>

<span>If the phase angle between voltage and current is 90 degrees, then even though current may be flowing, the total power over a cycle would be zero. Reactive elements like inductors and capacitors have a 90degree phase relationship between voltage and current. They do not "dissipate" energy. They store energy and give it back during different parts of the AC cycle. </span>
3 0
3 years ago
The number of oscillations that a wave completes per unit of time in called its _______.
Elena-2011 [213]
<span>The number of oscillations that a wave completes per unit of time is called "frequency".
Frequency represents in fact how many complete cycles of the wave are done in a single unit of time. It can be written also as
</span>f= \frac{Ncycles}{time}<span>
</span>
6 0
3 years ago
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