The astronaut whose heart rate on Earth is 60 beats/min increases his velocity to v = 0.60c. Now what is his heart rate as measured by an Earth observer?
a. 100 beats/min
c. 36 beats/min
b. 75 beats/min
d. 48 beats/min
D
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A 580-turn circular coil with an area of 0.0550 m2 is mounted on a rotating frame, which turns at a rate of 17.0 rad/s in the presence of a 0.0400-T uniform magnetic field that is perpendicular to the axis of rotation. What is the instantaneous emf in the coil at the moment that the normal to its plane is at a 50.0° angle to the field?
a. zero b. 21.7 V c. 18.9 V d. 16.6 V e. 0.0751 V
Determine
A geocentric universe is Sun centered
a. True b. False Indicate whether the statement is true or false
A 1.0-?F and a 2.0-?F capacitor are connected in series across a 3.0-V battery. (a) What is the voltage across the 1.0-?F capacitor? (b) What is the voltage across the 2.0-?F capacitor?
What will be an ideal response?