Answer:
m/min
Explanation:
You have to use the volume of a cone, which is:
where r is the radius of the base and h is the height.
In this case, r=5 and h=10. The radius can be written as r=h/2
Replacing it in the equation:
(I)
The rate of the volume is the derivate of volume respect time, therefore you have to perform the implicit differentiation of the previous equation and equal the result to 3.14 m³/min
Replacing dV/dt= 3.14, h=7.5 and solving for dh/dt, which represents how fast the level is rising:
Multiplying by 16/225π both sides:
m/min
The first one is correct. It shows her paddling at 8mph north and the water moving 6mph west. Importantly it also has the vectors added correctly. You draw all the vectors head to tail then the resultant vector is drawn from the base of the first one to the head of the last one with the arrow pointing in that direction.
Kinetic energy = (1/2) (mass) x (speed²)
If the ball was launched in the horizontal direction,
then its total kinetic energy was
(1/2) x (0.005 kg) x (5 m/s)²
= (0.0025 x 25) (kg-m²/sec²)
= 0.0625 Joule .
And that would be the amount of energy stored in the spring.
If the ball was launched at some angle above the horizontal, then
it had some vertical speed too. Its total kinetic energy was then
some greater number, and there was more energy stored in
the spring.
As the chicken cooks (and if it doesn't directly touch the fire), energy goes through the chemical, radiant, then thermal stages respectively.
The charcoal fire releases chemical energy. The heat of the fire is radiant, and the thermal (heat) of the fire cooks the chicken.
Answer:
When two objects collide and stick together, what will happen to their speed, assuming momentum is conserved? They will move at the same velocity as whichever object was fastest initially. They will move at the same velocity of whichever object was slowest initially.
Explanation:
