Answer:
Explanation:
<u>Force Constant of a Spring</u>
The force F applied to a spring produces a stretching distance x. These variables are linearly related as expressed by Hook's law:
If we could measure the distance a spring stretches when applying a known force, we'd be able to find the value of K. The experiment stated in the question places some mass of a known weight of 96 N that produced a stretching distance of 16 m. Knowing both variables, we can solve the above equation for K
Answer:
Atoms that make up propane are hydrogen and carbon and they will form covalent bonds because they are non - metals.
Explanation:
Formula for propane is C3H8.
This means is is made up of Carbon and hydrogen.
Covalent bonding is defined as the process of sharing of electrons between atoms. Now, this type of bonding occurs between two atoms of the same element or elements that are close to one another in the periodic table. This suggests that the covalent bonding will occur primarily between nonmetals.
Now, the atoms of propane are made up of Carbon and hydrogen. These elements are non-metal and thus as described about covalent bonds, they will form covalent bonds because theg are both nonmetals.
Answer:
the nephew
Explanation:
because we need to First find the trails that is on top of all the others in order to find who was the last to leave, since the person that was last to leave would most likely step on another person's trail that has been theirs before them.
by looking at this picture I noticed that the butler's footprint was the latest one but the dogs footprint steps over it therefore making it the last to leave, and the person who owns a dog is her nephew so therefore the nephew is the one that stole the butterfly trophy.
Answer:
a. 120 W
b. 28.8 N
Explanation:
To a good approximate, the only external force that does work on a cyclist moving on level ground is the force of air resistance. Suppose a cyclist is traveling at 15 km/h on level ground. Assume he is using 480 W of metabolic power.
a. Estimate the amount of power he uses for forward motion.
b. How much force must he exert to overcome the force of air resistance?
(a)
He is 25% efficient, therefore the cyclist will be expending 25% of his power to drive the bicycle forward
Power = efficiency X metabolic power
= 0.25 X 480
= 120 W
(b)
power if force times the velocity
P = Fv
convert 15 km/h to m/s
v = 15 kmph = 4.166 m/s
F = P/v
= 120/4.166
= 28.8 N
definition of terms
power is the rate at which work is done
force is that which changes a body's state of rest or uniform motion in a straight line
velocity is the change in displacement per unit time.
They are called radicals.................
