Answer:
1.2 billion hours or 137 thousand years
Explanation:
4 light-years, or 24 trillion miles. So, this trip would take 1.2 billion hours. There are 24 hours a day and 365.25 days per year, so this time in years is 137 thousand years.
Answer:
repel each other
Explanation:
The magnitude of the charge of an electron is called... ... If a positively-charged glass rod is suspended so that it turns easily and another positively-charged glass rod is brought close to it, the two rods will... Repel each other.
Aerobic dance<span> has its foundation in </span>dance<span>-inspired movements. It is a cardiovascular workout set to music in a group </span>exercise<span> setting. You do not have to memorize </span>dance<span> moves, as the classes are taught by instructors who verbally tell and visually show the </span>choreography<span>.</span>
Explanation:
Since the current flowing through an ideal capacitor is described by equation:
for voltage across the capacitor constant with time the current is:
Open switch has this characteristics (Constant voltage and zero current).
Answer: 79 J
Explanation:
The value of the kinetic energy at the bottom would be equal to the value of potential energy at the top. This comes from the conservation of energy. At the top, the bob of mass just has potential energy due to its position. At the bottom, potential energy converts entirely to kinetic energy due to its motion.
It is given that mass of the bob is, m = 0.18 kg
height from which it is dropped is, h = 45 m
acceleration due to gravity, g = 9.8 m/s²
Thus, K.E. = P.E. = m g h = 0.18 kg× 45 m × 9.8 m/s² = 79 J