suggest a Form of renewable energy that could be used to power an electric ticket machine that only needs to work during dayligh
1 answer:
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Explanation:
The given data is as follows.
Concentration of caffeine = 2.97 mg/oz
Number of oz in a can = 12 oz
Therefore, the concentration of caffeine in one can is calculated as follows.
= mg
= 35.64 mg
=
Since, it is given that lethal dose is 10.0 g. Hence, number of cans are calculated as follows.
No. of cans =
=
= 280.58
= 281 (approx)
Thus, we can conclude that 281 cans of soda would be lethal.
Answer:
option C
Explanation:
Let mass of the bullet be m and velocity be v
mass of gun be M and bullet be V
now,
using conservation of momentum for gun 1
(M+m) V' = 2 mv + 3 MV
V' = 0
3 M V = - 2 mv
momentum of gun 1 =- 2 mv---------(1)
now for gun 2
(M+m) V' = mv + MV
V' = 0
M V = - mv
momentum of gun 1 = -mv-----------(2)
dividing equation (1) by (2)
the correct answer is option C