Answer:
The time taken for the vehicle to pull a 500 N rock 100 meters is :
<u>t = 5 sec</u>
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Explanation:
Work = The magnitude of work is given by the product of force and displacement .
W = F x s
F = Force in Newton"N"
s = displacement "s"
In the question : F = 500 N and s = 100 m
W = F x s
W = 500 x 100
W = 50000 Nm
W = 50000 J
Power : It is the rate of doing work.The expression of power is given by :
![Power=\frac{Work}{time}](https://tex.z-dn.net/?f=Power%3D%5Cfrac%7BWork%7D%7Btime%7D)
![P = \frac{W}{t}](https://tex.z-dn.net/?f=P%20%3D%20%5Cfrac%7BW%7D%7Bt%7D)
W = Work = 50000 J
t = time
P = power = 10,000 Watt
Put the value in the formula:
![P = \frac{W}{t}](https://tex.z-dn.net/?f=P%20%3D%20%5Cfrac%7BW%7D%7Bt%7D)
![t = \frac{W}{P}](https://tex.z-dn.net/?f=t%20%3D%20%5Cfrac%7BW%7D%7BP%7D)
![t = \frac{50000}{10,000}](https://tex.z-dn.net/?f=t%20%3D%20%5Cfrac%7B50000%7D%7B10%2C000%7D)
t = 5 sec
Answer:
the number of protons in the nucleus of an atom. the number of protons define the identity of an element
It is typically formed by the evaporation of salty water (such as sea water) which contains dissolved Na+ and Cl- ions. One finds rock salt deposits ringing dry lake beds, inland marginal seas, and enclosed bays and estuaries in arid regions of the world
Answer:
0.156 moles of Fe₂O₃
Explanation:
To determine the moles, we must divide mass (g) to the molar mass of the compound.
Fe₂O₃ → 159.7 g/mol (molar mass)
We need the mass of compound in g, so let's do the conversion:
2500 cg . 1g / 100cg = 25 g
Moles = mass / molar mass → 25 g / 159.7 g/mol = 0.156 moles of Fe₂O₃
Answer:
A. co dominace
incomplete dominance is when both genes show, this would result in the chicken being a black and white color
Explanation: