Answer:
9,339,136 J
Explanation:
Convert km/hr to m/s:
(110km/s)(1000m/km)(1hr/60min)(1min/60s) = 30.56m/s
KE = (1/2)mv^2 = (1/2)(20,000kg)(30.56m/s)^2 = 9,339,136 J
189.77K − 273.15 = -83.38°C
-83.38 degrees celsius
Atomic Number. (Or the number of protons in that element, same thing)
Answer:
12.4 × 10∧3 atoms
Explanation:
Given data:
moles of oxygen molecule= 1.0000 x 10-20 mol
atoms =?
Solution:
32 g O2 = 1 mol = 6.02 × 10∧23
1.0000 x 10∧-20 mol × 6.02 × 10∧23 × 2 = 12.4 × 10∧3 atoms