Answer:
122.5 ohm
Explanation:
Given :
P=40 w
V= 70 V
R=?
Resistance can be calculated as :
Therefore, resistance of the bulb will be 122.5 ohm
Answer:
False
Explanation:
When a driver is impaired the brain will need an extra second or two to wake up, after it does wake up it tends to drift off regularly.
A. Scientific Law. The mathematics surrounding the acceleration due to gravity is a law. It is calculated from the universal law of gravity. However, the explanation of the idea of gravity is a theory. This falls back to the idea that science is about disproving ideas that we currently believe, rather than proving ideas are correct. Unless we can disprove an idea, we have to accept the possibility that it is true; the more trials we have of being unable to disprove something, the more accepted it will be. Yet, no idea can be without doubt and certainty be accepted for what it is. So, to sum it up, scientific laws are factual descriptions (by formula or word) of phenomenon which always occur given specific conditions. On the other hand, scientific theories are explanations of the causes underlying these phenomena, the explanation formulated in such a way that they can be disproven.
The volume occupied by three milliliters of water is the same as three
cubic centimeters of water is true. The conversion is as follows.
3mL (1 L/1000 mL) (1 m3/1000 L) (100 cm/1 m)^3 = 3 cm3
Answer:
For a body moving at a uniform velocity you can calculate the speed by dividing the distance traveled by the amount of time it took, for example one mile in 1/2 hour would give you 2 miles per hour. If the velocity is non-uniform all you can say is what the average speed is.
