Answer:
-63.6m/s
Explanation:
Given parameters:
Initial velocity = 5m/s
Time of flight = 7s
Unknown:
Velocity of the eraser after 7s = ?
Solution:
To solve this problem, we have to use the right motion equation which is given below;
v = u - gt
v is the final velocity
u is the initial velocity
g is the acceleration due to gravity = 9.8m/s²
t is the time taken;
Now insert the parameters and solve for v;
v = 5 - (9.8 x 7)
v = -63.6m/s
Answer:
E=h.f
=5.2×1014×6.63×10^-34
E=3.496×10^-30 J
Answer:
Explanation:
From the question we are told that
Volume V
Contains N particles
Leaks from a small hole of area A
Generally the equation for Flow rate is given as
Volume Flow Rate 
Mathematically we find the time taken to flow half way which is given by
Therefore the time taken is
About 360 meters I hope this helps
Answer:
conserved
Explanation:
During this process the energy is conserved
