Answer:
Intensity of a wave is Power per unit area.
Explanation:
The intensity of wave is defined as the power per unit area in the direction of motion of wave i.e.
Also, the intensity of a wave is directly proportional to the square of its amplitude. Let a is the amplitude of a wave. So,
The SI unit of power is watt and the SI unit of area is m². So, the SI unit of intensity is W/m². Hence, the correct option is (a) "Intensity of a wave is Power per unit area".
Find the v first by using 3.14x0.22x2.16 div. 41g
Answer:
A
Explanation:
The toaster was too high so its the increase in eat
Potential energy is a relative measure, so the answer is dependent on the assumptions we make. The potential energy in the car is going to be gravitational potential energy(PE). PE = mgh, where m is the mass, g is 9.8 m/s^2, and h is the height. So PE = 2000*9.8*h = 19600h. The final answer obviously depends on h. Most likely the problem is assuming that 30 meters under the top of the hill is considered 0 meters. Then h would be 30m and PE would equal 588 kJ.
Answer:
Explanation:
Recall that the formula for an inductance (L) for coil on N turns, are A and current I is given by:
Then, for the first coil we have;
and for coil 2 we have:
then, the quotient L1/L2 can be written as:
