Answer:
I want to say decomposers, because they break down plants that the herbivores eat, and they can also decompose the remains of a scavenger, herbivore, OR carnivore, that was killed and eaten by a carnivore, and maybe even found and eaten by a scavenger. I'm sorry if it's not correct, that's just what my brain has decided right now
Answer:
a) P=974,028.25 Pascals
b) P=159,154,943.1 Pascals
Explanation:
<u>Pressure</u>
It's measured as the ratio of the force F applied perpendicular to a surface of area A. Its units are Pascal, PSI, atmospheres, bars, mm Hg, among many others.
a)
Our man has a weight of 765 Nw. When he lies on the bed of nails, his weigh will be (uniformly) distributed among them all. It there are 1000 nails, each one will take a force of
The flattened point on each nail has a radius of 0.500 mm = 0.0005 meters, we can compute its area as a circle
The pressure of each nail will be
Or equivalently
b)
We can similarly calculate the pressure exerted on the skin by an acupuncture needle of radius 0.100 mm (0.0001 m) applied with a force of 5 N
Or equivalently
Answer:
The final velocity of the melon-arrow system immediately after collision is:
Explanation:
We use conservation of momentum to solve this problem.
The initial state consists of an arrow of mass m and speed v , and a static melon that is not moving (velocity = 0)
Therefore, the initial momentum of the system which is the addition of the initial momentum of the arrow () plus the initial momentum of the melon ( is;
The final system consists of the arrow stack to the melon (total mass "m+M"), travelling at the unknown velocity that we need to find. The final momentum of this system is therefore the product of this mass times the unknown velocity:
Due to conservation of momentum in this inelastic collision, we set the equation that equals the system's initial momentum to the final momentum, and solve for the unknown velocity:
The kinetic energy of any moving object is
(1/2) (mass) (speed²) .
For the object you described, that's
(1/2) (100 kg) (12.5 m/s)²
= (50 kg) (156.25 m²/s²)
= 7,812.5 joules
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Your attachment is way out of focus, and impossible to read.