Into molecules of
sugar and
oxygen.
The complete reaction of the photosynthesis is in fact:

and the energy of the light coming from the sun is also used to make the reaction possible.
Answer:
(a) 
(b) 
Explanation:
The average power is defined as the amount of work done during a time interval:

According to work-energy theorem, the work done is equal to the change in kinetic energy. So, we have:

Recall that the weight is given by:

The car accelerates uniformly from rest (
). Replacing (3) in (2), we have:

(a) Finally, we replace this in (1):

(b)

The answer may be pair or group
Answer:
Explanation:
Given that,
Mass of first car
M1= 328kg
The car is moving in positive direction of x axis with velocity
U1 = 19.1m/s
Velocity of second car
U2 = 13m/s, in the same direction as the first car..
Mass of second car
M2 = 790kg
Velocity of second car after collision
V2 = 15.1 m/s
Velocity of first car after collision
V1 =?
This is an elastic collision,
And using the conservation of momentum principle
Momentum before collision is equal to momentum after collision
P(before) = P(after)
M1•U1 + M2•U2 = M1•V1 + M2•V2
328 × 19.1 + 790 × 13 = 328 × V1 + 790 × 15.1
16534.8 = 328•V1 + 11929
328•V1 = 16534.8—11929
328•V1 = 4605.8
V1 = 4605.8/328
V1 = 14.04 m/s
The velocity of the first car after collision is 14.04 m/s