<span>Answer: B</span>
The formula used to calculate the mass of an object if the net force
and its acceleration are known is m = F/a. Where Force is measured in N (newton)
and it can be write as (kg
* m)/ s2 while acceleration is measured in m/s2.
This equation is derived from Newton's
second law of motion where the acceleration of an object is produced by a net
force that is directly proportional to the magnitude of the net force, in the
same direction as the net force, and inversely proportional to the mass of the
object. So the larger the object mass the smaller the acceleration.
(a) The power of the bulb is P=60.0 W. Half an hour corresponds to a time of
so the energy used by the bulb during this time is
(b) The efficiency of the bulb is 12%, it means that it converts only 12% of the input energy into thermal energy, so the thermal energy is
The point where you're standing ... (300, 400) ... is 500 m from the origin.
Light takes (500 m) / (3 x 10⁸ m/s) = 1.67 μs to travel from the origin to you.
So when you SEE the clock at the origin read 3.0 μs, you're
seeing it as it was 1.67 μs ago. YOUR clock says 4.67 μs .
<u>A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element</u>.
Resistors reduce the current flow and lower voltage levels within circuits.
A <u>circuit is said to be connected in series</u> when the same amount of <u>current flows through the resistors</u>. In such circuits, the voltage across each resistor is different.
In a series connection, if any resistor is broken or a fault occurs, then the entire circuit is turned off. The construction of a series circuit is simpler compared to a parallel circuit.
For the above circuit(attached image-1), the total resistance is given as:
The total resistance of the system is just the total of individual resistances.
A <u>circuit is said to be connected in parallel</u> when the <u>voltage is the same across the resistors</u>. In such circuits, the current is branched out and recombines when branches meet at a common point.
A resistor or any other component can be connected or disconnected easily without affecting other elements in a parallel circuit.
The figure(attached image -2) above shows ‘n’ number of resistors connected in parallel. The following relation gives the total resistance here
The sum of reciprocals of resistance of an individual resistor is the total reciprocal resistance of the system.
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Hope it helps you:)
Answer:
Diffraction
Explanation:
Diffraction is the bending of waves around obstacles and openings. The amount of diffraction increases with increasing wavelength.