Photosynthesis. Photosynthesis is the process the plant uses to absorbs light to make food
To find the maximum height we use the expression:
U²=2gh
Where u is the initial velocity,
g is gravitational field strength
h is the maximum height.
h=u²/2g
h=40²/20
=1600/20
=80m
The total energy of a particle is its rest energy plus the kinetic energy. Its formula is: Et= m^2/sqrt((1-v^2)/c^2))
The rest energy is equal to the product of mass and the square of light velocity: Er=mc^2.
When the kinetics energy is twice its rest energy this holds:
Et=Er
m^2/sqrt((1-v^2)/c^2))=<span>mc^2.
</span><span>sqrt((1-v^2)/c^2))=m/c^2
</span>=> v=sqrt(3/2)c
Final Answer:
65.25 J is the kinetic energy that the ball has.
Explanation:
M = 145g
(Reminder: kg must be used in this formula, thus we need to convert 145g to kg)
M = 145g x 1kg/1000g
(cross out g, then multiply 145 to 1kg)
M = 145kg/1000 = 0.145kg
M = 0.145 kg
V = 30.00 m/s
Solution:
KE = 1/2mv^2
KE = 1/2(0.145kg)(30.00m/s)^2
(Square first the velocity)
KE = 1/2(0.145kg)(900.00m^2/s^2)
KE = 1/2(130.5 kg*m^2/s^2)
KE = 65.25 kg*m^2/s^2
(Reminder: 1 kg*m^2/s^2 = 1 J)
KE = 65.25 J
Final Answer:
65.25 J is the kinetic energy that the ball has.
We need a and we have m and F . Now a = f÷m so therefore a = 4,9 ÷ 0,5 which is 0,98 metres per cubic second