Yes, this is accurate. While "dark matter" might exist, it is still more of a theory, it is not yet defined properly. As far as we truthfully know, the entire universe is just matter and energy.
Answer:
No
Explanation:
Because the people put in charge of defining SI units said so
Answer:
The right option is C. i.e L
Explanation:
Dimension of a quantity is the collection of the indexes of each of the fundamental quantities contained in it.
Therefore, to get the dimension of A in the equation
X=Asin(2(pi)ft)
Making A the subject of the formula
A = X / (sin(2(pi)ft)
Since sin(2(pi)ft which is a trigonometric function does not have a dimension
A = L
The dimension of A is L
<h2>Sugary Sports drink for hydration.</h2>
Explanation:
- Sugary sports drinks are the best for hydration. False.
Sugary sports drink are not the best option for hydration because many times they lead to excess calorie intake and pave the way for obesity if the physical exercise is not enough to burn the entire calorie. Sugary drinks also have ill effects on tooth due their low pH levels.
The best option for hydration is always water.
Answer:
Explanation:
The emf induced in a straight conductor of length l moving with velocity v perpendicular to a magnetic field B is
E = Blv
where B, l and v are perpendicular. The emf, E is in volts
Magnetic field, B is in webers/m2
= 1.2 T
length is in meters
= 0.15 m
velocity, v is in m/sec
= 8 m/s
E = 1.2 × 0.15 × 8
= 1.44 V
B.
Using ohm's law,
V = I × R
I = 1.44/200
= 0.0072 A
C.
F = B × I × L
= 1.2 × 0.0072 × 0.15
= 0.001296 N