Answer:
25
Explanation:
Given:
1 can of concentrate requires 3 cans of water
Now,
Total ounces in 200 6-ounce cans = 1200 ounces
also,
for 1 can of concentrate requires 3 cans of water
thus,
for 12 ounces can water can required = 3 × 12 ounces = 36 ounces of cans
Thus,
total ounce of juice per can = 12 + 36 = 48 ounces per can
therefore,
the number of 12-ounce cans required are = 
or
= 
or
the number of 12-ounce cans required are = 25
Answer:
D. 200 kgm/s
Explanation:
Momentum is conserved.
Initial momentum = final momentum
(50 kg) (4 m/s) + (30 kg) (0 m/s) = final momentum
200 kgm/s = final momentum
Answer:
The minimum velocity of the ball so the string will not go slack as the ball moves around the circle = 6.17 m/s
Explanation:
During the motion of the ball round the circle, the force keeping the ball in circular motion is directed towards the centre of the circle and the gravity is always pointing down.
At the highest position in the motion of the ball, the velocity is at a minimum because the net force responsible for motion is the difference between centripetal force (force in the string, keeping the ball in circular motion) and the weight of the ball.
At the bottom position of the ball, it has maximum velocity during the circular motion (net force = centripetal force + weight).
If the velocity of the ball is too low at the bottom, the ball will not have enough energy to make it to the top.
As the ball comes to the bottom of its circular motion, its kinetic energy increases because its potential energy is decreasing and as the ball moves back to the top of the circle of the circular motion, its kinetic energy decreases because its potential energy is increasing.
So, with respect to the height of the bottom of the circular motion as point 0, the diameter of the circular motion is the maximum vertical height reached by the ball.
And the minimum kinetic energy to still be able to rise to that vertical height = potential energy at that vertical height
(1/2) mv² = mgh
m = 0.167 kg
v = ?
g = 9.8 m/s²
h = 2 × radius = 2 × 0.97 = 1.94 m
(1/2) v² = 9.8 × 1.94
v² = 2×9.8×1.94 = 38.024
v = 6.17 m/s
I have two different answers. One is what the shcool most likely wants you to think and the other is the truth.
School: The waters could become more or less salty. Warm water is less dense than cold water so it will sit on top of cold water. It would very bad for plants because not all plants can live in such saltiness conditions.
Global Warming isn't a thing. It's fake, scientist have lied about it, and it's entirely false. The salt from the ocean comes from the constant bashing of ocean waves on the rocks. "Warm water is less dense than cold water so it will sit on top of cold water." is true, but that doesn't mean the oceans will be more salty if it is warmer, that just says how dense the salt and water is. it can be warmer or colder doesn't matter.
Hope it helps please let me know.
