Answer: The correct answer is 16 ohms.
Explanation:
The mathematical expression from Ohm's law is as follows;
V=IR
Here, I is the current, V is the potential and R is the resistance.
It is given in the problem that the potential in the circuit is 240 V and the current is 15 A.
Calculate the resistance by rearranging the above expression.
Put I= 15 A and V= 240 V.
R= 16 ohms
Therefore, the value of the resistance is 16 ohms.
The velocity of the combination of Jackie and the bicycle is 3.328 m/s.
Explanation:
From the given data the constant kinetic energy is 3.6 J. The mass of combination is 0.65 kg. To find the velocity of the combination of Jackie and the bicycle the formula is
KE = 0.5 x mv2.
To find velocity,
V2=ke/(0.5×m)
V=
v= 3.6/(0.5×0.65)
=
v= 3.328 m/s
Hence, the velocity of the combination of Jackie and the bicycle is 3.328m/s.
Answer:
The value of the angle theta = 135degree, which is option c.
Explanation :
These are the options given in the question
a) 45 degrees
b)120 degrees
c)135 degrees
d)150 degrees
e) it is impossible to deliver a negative power.
The concept of work done on an object is applied here.
work = Fd
F = ma
work = mad
Work is a form of energy transferred by an object after the application of a force that act on the object. A step by step explanation is as attached below.
