Answer: Option <em>a.</em>
Explanation:
Kepler's 2nd law of planetary motion states:
<em>A line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time.</em>
It tells us that it doesn't matter how far Earth is from the Sun, at equal times, the area swept out by Earth's orbit it's always the same independently from the position in the orbit.
Answer:
According to the standard big bang model of cosmology, time began together with the universe in a singularity approximately 14 billion years ago.
Explanation: the big bang
Answer:
<h2>109.52 Hz</h2>
Explanation:
The frequency of the wave when given it's velocity and wavelength only can be found by using the formula
where
c is the velocity of the wave in m/s
is the wavelength in meters
From the question we have
c = 230 m/s
= 2.1 m
We have the final answer as
<h3>109.52 Hz</h3>
Hope this helps you
Rubbing materials together Can strip electrons off atoms.
