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pantera1 [17]
3 years ago
12

How much power does it take to do 500J of work in 10 sec

Physics
2 answers:
tatuchka [14]3 years ago
8 0
P=w/t
so the answer is 500/10=50
aliya0001 [1]3 years ago
3 0

Answer: Power = 50J/s

Explanation: Power ,P is the rate of doing work and it is a scalar quantity with no direction.

P= Workdone/ time

P= 500/10

P= 50J/s

Therefore the power requires is 50J/s

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Which is a correct statement of what occurs at a turbine during electricity production?
jarptica [38.1K]

Answer:

The turbine is rotated and rotates the generator to produce electricity.

Explanation:

Within a turbine enters the superheated steam which is at high pressure and high temperature, this steam is previously formed in the boiler when the steam enters the turbine hits each one of the blades of the turbine making it rotate at a given speed, the turbine shaft is coupled to the shaft of an electric generator and thus generates electricity.

It is also important to say that when the steam comes out of the turbine comes out at low pressure, this way the internal operating process is carried out within the turbine.

4 0
3 years ago
A 90 kg man stands in a very strong wind moving at 17 m/s at torso height. As you know, he will need to lean in to the wind, and
victus00 [196]

Answer:

a)  t=195.948N.m

b)  \phi=13.6 \textdegree

Explanation:

From the question we are told that:

Density \rho=1.225kg/m^2

Velocity of wind v=14m/s

Dimension of rectangle:50 cm wide and 90 cm

Drag coefficient \mu=2.05

a)

Generally the equation for Force is mathematically given by

F=\frac{1}{2}\muA\rhov^2

F=\frac{1}{2}2.05(50*90*\frac{1}{10000})*1.225*17^2

F=163.29

Therefore Torque

t=F*r*sin\theta

t=163.29*1.2*sin90

t=195.948N.m

b)

Generally the equation for torque due to weight is mathematically given by

t=d*Mg*sin90

Where

d=sin \phi

Therefore

t=sin \phi*Mg*sin90

195.948=833sin \phi

\phi=sin^{-1}\frac{195.948}{833}

\phi=13.6 \textdegree

5 0
3 years ago
Which car has the greater momentum?
Marianna [84]
The answer is C. p=mv p=18x30 = 540kgm/s
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If then hypothesis for egg drop
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If I drop my egg unprotected, then it will break.
6 0
3 years ago
A physical science test book has a mass of 2.2kg. . What is the weight on the earth
dem82 [27]
Weight = mg,          g ≈ 9.8 m/s²

Weight = 2.2 * 9.8 ≈ 21.56 N
8 0
3 years ago
Read 2 more answers
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