Answer:
a.6533.333 N/m
b.Yes,the spring will be compressed more when the person hops down the road .
Explanation:
Mass of man=80 kg
Spring compressed by x=0.12 m
a.We have to find the force constant of the spring.
Spring constant=
Using the formula
Spring constant,
N/m
Spring constant=
b.The spring will be compressed more when the person hops down the road because when the person hops down then the kinetic energy of person will be converted into potential energy during the road hit.
Answer:
15km
Explanation:
Given parameters:
Average speed = 60km/hr
Time taken = 15min
Unknown:
Distance = ?
Solution:
The distance traveled can de derived using the expression below;
Distance = Average speed x time taken
Now let us convert the time to hr;
60min = 1hr
15min = 
= 0.25hr
Distance = 60km/hr x 0.25hr = 15km
Answer:
224236.76 W
Explanation:
Power: This can be defined as the rate of change of energy. The S.I unit of power is Watt(W).
From the question,
P = E/t ......................... Equation 1
Where P = power, E = Energy or work, t = time.
But,
E = Wt×d.................. Equation 2
Where Wt = Total weight of the passengers, d = distance.
Substitute equation 2 into equation 1
P = (Wt×d)/t.............. Equation 3
Given: Wt = 590×150 =88500 N, d = 244 m, t = 96.3 s.
Substitute into equation 3
P = (88500×244)/96.3
P = 224236.76 W
1.potential energy 2.kinetic energy 3.electrical energy 4.electrical energy
The observed pattern is electronegativity increases from left to right within a row of the periodic table.
In the periodic table, the most active metals are arranged on the far right while the most active non metals are arranged on the far left of the periodic table.
- The most active metals are found in group 1, which decreases as you move to group 3 and this similar to decrease in electropositivity.
- As, the electropositivity decreases, the electronegativity increases and the most active non metals are found in group 7 of the periodic table.
- The most electronegative element is Fluorine which is found in group 7 of the periodic table.
Thus, we can conclude that electronegativity increases from left to right within a row of the periodic table.
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