Answer:
Explanation:
For resistance the formula is as follows
R = ρ L/S
where L is length of the wire , ρ is a constant for a specific material called specific resistance and S is cross sectional area .
For 0.6 m wire , putting the values
.13 = ρ x 0.6 / S
For unknown wire
R = ρ x 187 / S
Dividing the two equations
R / .13 = 187 / .6
R = (.13 x 187) / .6
= 40.5 ohms .
Explanation:
Dark Energy. Dark Energy is a hypothetical form of energy that exerts a negative, repulsive pressure, behaving like the opposite of gravity. It has been hypothesised to account for the observational properties of distant type Ia supernovae, which show the universe going through an accelerated period of expansion
Answer:
Rarefaction is the reduction of an item's density, the opposite of compression. Like compression, which can travel in waves, rarefaction waves also exist in nature. A common rarefaction wave is the area of low relative pressure following a shock wave.
Explanation:
Answer:18 grams
Explanation:
The mass of an object doesn't change,it is the same everywhere irrespective of it location,therefore if the mass of an object in earth is 18 grams, the mass of the object in the moon will also be 18 grams
