Answer:
I think d. is the answer I'm not conform
Answer:
The value of R and the internal resistance of the battery are 10.6 ohm and 2.45 ohm
Explanation:
Given that,
Emf of battery = 15.0 V
Voltage = 12.2 V
Power = 14.0 W
(a). We need to calculate the value of R
Using formula of power



Where, R = resistance
P = power
V = voltage
Put the value into the formula


(b). We need to calculate the internal resistance of the battery
Firstly we calculate the current
Using formula of current

Put the value of P and V into the formula


We calculate the internal resistance
Using formula of emf


Put the value into the formula


Hence, The value of R and the internal resistance of the battery are 10.6 ohm and 2.45 ohm
Chemical processes and physical processes are how water is cycled from land to the atmosphere.
When the sound wave returns to the machine, you can measure
how long it took to return.
(You may notice that it's working just like RADAR, which does the
same thing with radio waves instead of sound waves.)
Even if you know how long the sound took to get to the bottom and
return to the top, you can't DO anything with this information if you
don't know the SPEED of the sound through the water. Not only
the inventory of this machine, but anyone who uses it, has to know
the speed of the sound through water in order to use the round-trip
time to calculate the depth.
Answer:
The bending of light as it passes from one medium to another is called refraction. The angle and wavelength at which the light enters a substance and the density of that substance determine how much the light is refracted. The bending occurs because light travels more slowly in a denser medium.
hope this helped :))