can i sent you photo in social media
Answer:
0.033 A
Explanation:
Current: This can be defined as the rate of flow of electric charge in a circuit.
The S.I unit of current is Ampere (A)
From Ohm's law.
V = IR ............................ Equation 1
Where V = Potential difference, I = current, R = resistance.
Making I the subject of the equation,
I = V/R................... Equation 2
Given: V = 52.3 V, R = 1570 Ω
Substitute into equation 2
I = 52.3/1570
I = 0.033 A.
Hence the current in the resistor = 0.033 A
Answer:
= 53.4 m/s
Explanation:
Velocity of a sound is given by the formula;
Velocity = Frequency × 2 (Length)
Frequency = 30 Hz
Length = 89 cm, equivalent to 0.89 M
Therefore;
Velocity = 30 × 2 ×0.89
= 53.4 m/s
Thus; the velocity or the speed of sound is 53.4 m/s
Answer:
Explanation:
Position of the ball as a function of time is given as
now we know that when ball will attain maximum height then the differentiation of the position with respect to time will become zero
so we have
now the maximum height is given as
A). The hot burner is in contact wit the pot,
warming it with conduction.
B). The hot sidewalk is in contact with the crayon,
melting it with conduction.
C). The sun is not in contact with anything, and there is
no fluid to convect between it and the sand. The only way
for the sun to transfer heat to the sand is with radiation.
D). The boiling water is in contact with the egg,
warming it with conduction.
