Answer:
option D
Explanation:
The correct answer is option D
Potential energy of an object is because of its location.
Expression of potential energy
P E = m g H
where H is the height of the object.
g is acceleration due to gravity, 9.8 m/s²
m is the mass of the object.
Potential energy is directly proportional to the location of the object.
If the height of the object is more than the potential energy of the object will also increase.
Answer:
The approximate distance traveled by the ball would be 80 meters in 4 seconds.
Explanation:
Given the canon has a horizontal velocity 140 m/s when it is launched from a tower.
We can see that as was fired horizontally the vertical component of the velocity is zero.
Now, the only force that causes ball to fall to the ground is the gravitational force.
Also, it was given that we need to neglect air resistance.
So, this the condition of free fall. We will use its formula
Where,
is the distance traveled vertically.
is the time of fall.
is .
Plugging these values we get,
So, the approximate distance traveled by the ball would be 80 meters in 4 seconds.
Answer:
the formula of the compound formed when Beryllium reacts with the sulfate ion is BeSO4
Explanation:
Answer:
this raise the temperature is x = 3
Explanation:
Heat capacity is the relationship between heat and temperature change
C = Q / ΔT
if the heat in the system is given by the change in energy and we carry this differential formulas
= dE / dT
In this problem we are told that the energy of thermal radiation is
E = A V T⁴
Let's look for the specific heat
c_{v} = AV 4 T³
the power to which this raise the temperature is x = 3