Uranus was discovered by accident, and mistaken for a comet at first
Indicate whether the statement is true or false
TRUE
You might also like to view...
The short lifetime of muons created in the upper atmosphere of the Earth would not allow them to reach the surface of the Earth unless their lifetime increased by time dilation. From the reference system of the muons, the muons can reach the surface of the Earth because
a. time dilation increases their velocity. b. time dilation increases their energy. c. length contraction decreases the distance to the Earth. d. the relativistic speed of the Earth toward them is added to their velocity.
Earth is the terrestrial planet with the largest moon
Indicate whether the statement is true or false
A 2.65-kg block of ice is at STP (0°C, 1 atm) while it melts completely to water. What is its change in entropy? (For ice, Lf = 3.34 × 10^5 J/kg)
a. zero b. 1 620 J/K c. 811 J/K d. 3 240 J/K e. 6 480 J/K
A 300-g glass thermometer initially at 25°C is put into 200 cm3 of hot water at 95°C. Find the final temperature (in °C) of the thermometer, assuming no heat flows to the surroundings. (The specific heat of glass is 0.2 cal/g/°C.)
a. 52 b. 68 c. 89 d. 79 e. 36