A supernova is up to 50,000 times less luminous than a normal nova and lasts for a much shorter period
Indicate whether the statement is true or false
False
You might also like to view...
What is the change in entropy when 50 g of ice melt at 0°C?
A) 14.7 cal/K B) 4.0 kcal/K C) zero D) -4.0 kcal/K E) -14.7 cal/K
Two 50-N weights pull on the scale as shown. The reading on the scale is
1) 0 N. 2) 25 N. 3) 50 N. 4) 100 N. This is clearer to understand if we think of the situation this way: 5) Since no acceleration is taking place, the forces cancel one another. 6) One of the weights "holds" the scale while the other weight stretches the spring. 7) The two hanging weights provide forces that constitute an action/reaction pair.
Most telephone cables are made of copper wire of either 24 or 26 gauge. If the resistance of 24-gauge wire is 137 W/mile and the resistance of 26-gauge wire is 220 W/mile, what is the ratio of the diameter of 24-gauge wire to that of 26-gauge wire?
a. 1.6 b. 1.3 c. 0.62 d. 0.79 e. 0.88
A 25.0-mH inductor, a 2.00-?F capacitor, and a certain resistor are connected in series across an ac voltage source at 1000 Hz. If the impedance of this circuit is 200 ?, what is the value of the resistor?
A) 100 ? B) 184 ? C) 552 ? D) 579 ? E) 200 ?