The current flowing in the circuit can be found by applying Ohm's law:
where
V is the voltage of the battery
I is the current flowing in the circuit
R is the resistance of the circuit
In our problem, V=12 V and
, so if we re-arrange the previous equation and we use these data, we find the current in the circuit:
Therefore the correct answer is C).
If we are depending on nonrenewable resources only then we will run out first at that resource which we are using at large level
that resource which is used at all levels at very fast level but we can't get it at that rate from natural sources
So out of all given choices we know that at most fastest rate we are using the OIL which we extract from the earth crust.
The rate with which we are extracting oil is very fast and if we use it at same rate then we will definitely run out of it
so correct answer would be
B. oil
To change the thermos into an open energy system<span>, take off the the cap</span>
Answer:d
Explanation:
Given systems are state of matter and do not contain any heat instead Heat is required to change Phase or raise the temperature of the particular system.
For example 600 kg of ice at
Heat Required to convert it to water at is
Where L=latent heat of Fusion
Answer:
8.2 m/s
Explanation:
radius (r) = 1.3 m
coefficient of friction (u) = 0.19
acceleration due to gravity (g) = 9.8 m/s^{2}
for the passengers to remain stuck on the wall, the normal force must be equal to the centripetal force (while considering the coefficient of friction).
normal force = centripetal force x coefficient of friction
mg = x u
g = x u
v =
v =
v = 8.2 m/s
the minimum speed the passengers can have to stick to the wall = 8.2 m/s