This motion of helicopter rotor blade is an example of circular motion.
We have the angular velocity of rotor blade = 510 rev/min
= (510*2)/60
= 53.41 rad/s
We have the linear velocity of circular motion = radius * angular velocity
So the speed of the blade tip of helicopter = 53.41 * 3.30
= 176.24 m/s
Speed of the blade tip of helicopter = 176.24 m/s
Answer:
Attitudes help determine self concept; but, unlike values, they are more narrowly defined. The relationship between values and attitudes is close because values are reflected in attitudes. Your attitude says something about your value system.
Answer:
(1) 0.04 ohms (2) 55 ohms (3) 13 volt
Explanation:
(1) The resistance of an electric device is 40,000 microhms.
We need to convert it into ohms.
To covert 40,000 microhms to ohms, multiply 40,000 and 10⁻⁶ as follows :
(2) Voltage used, V = 110 V
Current, I = 2 A
We need to find the resistance of the iron. Using Ohms law to find it as follows :
V = IR, where R is resistance
(3) Current, I = 0.2 A
Resistance, R = 65 ohms
We need to find the applied voltage in the circuit. Using Ohms law to find it as follows :
V=IR
V = 0.2 × 65
V = 13 volt
Let loudness be L, distance be d, and k be the constant of variation such that the equation that would best represent the given above is,
L = k/(d^2)
For Case 1,
L1 = k/(d1^2)
For Case 2,
L2 = k/((d1/4)^2)
For k to be equal, L1 = 16L2.
Therefore, the loudness at your friend's position is 16 times that of yours.