<span>Heat from the Sun is transferred to the sand without direct contact. This heat is then transferred to your feet by direct contact.</span>
Answer:
6.75m
Explanation:
To calculate the distance in this question, we can use the formula:
S = ut + 1/2at^2
Where; S = distance
u = initial velocity = 0m/s
t = 3s
a = 1.5m/s^2
Hence:
S = (0 × 3) + 1/2 (1.5 × 3 × 3)
S = 0 + 1/2 (13.5)
S = 13.5/2
S = 6.75
Therefore, the car will travel 6.75m in 3seconds.
1.97 E-7 m should be right. I took this a while ago.
This happens because of the earth rotating around the sun. So we see different constellations for different seasons.
Answer:
Explanation:
When the electrons are ejected from metal surface, the electrons have some kinetic energy if the incident energy is more than the work function of the metal.
The minimum amount of energy which is required to just eject the electrons from the metal surface is called work function. It is denoted by Wo.
The energy incident is E.
So, the maximum kinetic energy k is given by
E = Wo + K
K = E - Wo
Kinetic energy is
K = 0.5 mv²
where, m is the mass of electron, so from the above equation we get the value of velocity of electrons.
