Answer:
Here are some of the main cons of nuclear energy.
•Expensive to Build. Despite being relatively inexpensive to operate, nuclear power plants are incredibly expensive to build—and the cost keeps rising. ...
•Accidents. ...
•Produces Radioactive Waste. ...
•Impact on the Environment. ...
•Security Threat. ...
•Limited Fuel Supply.
That depends on several things that we don't know.
A few of them are:
-- the size of the sample
-- what level of radioactivity was measured at the beginning
-- what's the unit of the 12.5
-- the half-life of the substance involved
Hence, internal energy in cylinder B is twice than that in A.
It is given that two cylinders contain the same ideal gas and have the same volume. If the gas molecules in cylinder B have twice the average kinetic energy as those in cylinder, we need to compare internal energy.
As kinetic energy is directly proportional to temperature, internal energy is also proportional to temperature.
We can say that more the average kinetic energy, more is the internal energy.
Hence, internal energy in cylinder B is twice than that in A.
The ratio in A:B is 1:2.
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Answer:
Work Done by the earth's gravitational force on the satellite as it travels from apogee to perigee is
W = F*D*Cos90° = 0
Explanation:
Although there is a change in the kinetic energy of the satellite at the apogee and perigee, the work done by the earth's gravitational force on the satellite is Zero.
W = F.D, F is the gravitational force, D is the displacement. Both F and D are vectors and perpendicular to each other. That is, the angle between F and D is 90°.
