Answer:
The answer for the missing word is "OPPOSITE"
Explanation:
Work done is the product of the force and displacements caused on an object. This work done can be either positive or negative. Work done is positive if the direction of force acting on an object is along the direction of motion of the object.
This is because, in this case the external force is helping the object to continue its state of motion.
However, in contrast, the workdone will be negative when the object stops or slows down the motion of the object if the force acting on the object is in completely opposite or partially opposite direction to the direction of motion of the object.
So, the answer is "OPPOSITE"
Answer:
The internal resistance of the battery is 1.0 Ω.
Explanation:
Given that,
Voltage = 12,0 V
Resistance of each resistor = 6.0 Ω
Current = 4.0 A
When three resistors are connected in parallel.
We need to calculate the resistance
Using formula of parallel
Here, R₁ = R₂ = R₃
The equivalent resistance is
We need to calculate the internal resistance
Using ohm's law
Where, R = resistance
r = internal resistance
V = voltage
I = current
Put the value into the formula
Hence, The internal resistance of the battery is 1.0 Ω.
Answer:
The Dimension of mass is [F T v⁻¹] and Dimension of energy is [F T v]
Explanation:
(i) We know that,
Force = mass × acceleration
= mass × velocity/time
⇒ mass = force × time ÷ velocity
or. [mass] = [force] [time] ÷ [velocity]
= [F] [T] ÷ [v]
∴ [mass] = [F T v⁻¹]
(ii) Dimensions of energy are same as the dimensions of kinetic energy
∴ Energy = [ ½mv²] = [m] [v]²
= [F T v⁻¹] [v]²
Energy = [F T v]
Thus, The Dimension of mass is <u>[F T v⁻¹]</u> and Dimension of energy is <u>[F T v]</u>
<u>-TheUnknown</u><u>Scientist</u>
Frequency with wavelength 1.162m<span> = 344/1.162 = 296.04</span><span>Hz</span>
