Answer:
5.9 m
Explanation:
v=6m/s
H=5m
h=0.17m
g=10 m/s
First we find the time in which ball reaches the entrance of coffee can. For this purpose the ball has to travel a distance S vertically downward such that
S= 5-0.17 = 4.83 m
While falling down Vi =0
g= 10 m/sec2
t = ?
S=vit+1/2 gt2
==> 4.83=0+0.5×10×
==> 4.83=5×
==> =4.83/5 = 0.97
==> t= 0.98 sec
So in this time the ball reaches the coffee can height level. Now let's calculate horizontal distance covered by the ball in this time.
Horizontal distance = horizantal velocity × time
= 6 × 0.98 = 5.9 m
Answer:
False
Explanation:
Let the initial amount is No.
Let t be the half life.
Half life is the time in which the initial amount of the substance becomes half and the remaining amount in teh sample is also half.
After one half life, the remaining amount is No / 2
After two half lives, the remaining amount is No / 4
After three half lives, the remaining amount is No / 8.
So, the statement is false.
Answer:
1.5 Amp is rated for 5 W so it would not be possible
Answer:
4500.5 nutritional calories per gram
Explanation:
Heat lost by the new candy = heat gained by the bomb calorimeter.
Heat gained by the bomb calorimeter = c×ΔT
where c = heat capacity of the calorimeter = 32.20 KJ/K = 32200 J/K
ΔT = change in temperature = 2.69°C = 2.69 K.
Heat gained by the bomb calorimeter = 32200 × 2.69 = 86618 J
Heat lost by the new candy = heat gained by the bomb calorimeter = 86618 J = 20702.2 calories
4.60 g of the new candy lost this amount of calories by undergoing combustion,
The amount of calories per g = 20702.2 calories/4.6 g = 4500.5 calories per gram
, where
is all the energy that goes into the system,
is all the energy that leaves the system and,
is the change of the energy of the system.
.