A cylinder has 500 cm3 of water. After a mass of 100 grams of sand is poured into the cylinder and all air bubbles are removed b
1 answer:
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To solve this problem it is necessary to use the given proportions of power and energy, as well as the energy conversion factor in Jules to Calories.
The power is defined as the amount of energy lost per second and whose unit is Watt. Therefore the energy loss rate given in seconds was
The rate of energy loss per day would then be,
That is to say that Energy in Jules per lost day is 5356800J
By definition we know that
In this way the energy in Cal is,
The number of kilocalories (food calories) must be 1279.694 KCal
Answer:
33.33 %
Explanation:
given,
error last year = 63
error this year = 42
percent decrease in the error = ?
to find the percentage difference in the error formula used is
=
=
=
= 33.33 %
Percentage decrease in the number of error is equal to 33.33%.
Answer:
Explanation:
B = Magnetic field =
d = Diameter of loop = 16 cm
r = Radius =
i = Current
= Vacuum permeability =
The magnetic field of a loop is given by
The current needed to produce such a field at the center of the loop is