The correct answer is
<span>requires more energy to lose an electron than a metal
In fact, the main characteristics of the metals is that they have many electrons free to move through the lattice of the material, so it is easy for a metal to gain/lose electrons. On the contrary, non-metals don't have free electrons, so more energy is required in order to rip an electron from the atoms of the material.</span>
The equation of movement for this case is given by:
Where,
vf: final speed
a: acceleration
t: time
vo: initial speed
Substituting values we have:
Clearing the acceleration we have:
Answer:
his acceleration during this time is:
The equatorial radius of the earth is
r = 6378 km = 6378 x 10³ m
The earth makes 1 revolution in 24 hours.
The angular velocity is
ω = (2π rad)/(24*3600 s) = 7.2722 x 10⁻⁵ rad/s
The tangential velocity (linear velocity) at a point on the equator is
v = rω
= (6378 x 10³ m)*(7.2722 x 10⁻⁵ rad/s)
= 463.8 m/s
Answer: 463.8 m/s
Answer:
The smaller ball (the tennis ball) will receive a much larger acceleration than the soccer ball of larger mass.
According to Newton's 2nd Law of motion, (force equals mass times the acceleration imparted)
Since in this case we have the same force (50 N) applied to two different masses (one the tennis ball "m" which has smaller mass than the soccer ball of mass "M"), then the resultant accelerations will be different being the acceleration of the tennis ball () much larger than the acceleration imparted to the soccer ball (), as can be seen from solving for the acceleration in the previous equation:
The increase in temperature of the water is
The total mass of the water is the product between its volume and its density
And so we can find the amount of heat released by the pebble to the water, because this is equal to the amount of heat absorbed by the water, which is