Answer:
The molecules in hot air are moving faster than the molecules in cold air.
Answer:
a.) 2.66 seconds for 79.2 km/h and 1.82 seconds for 47.8 km/h
b.)-4.13 m/s2 for 79.2 km/h and -3.63 m/s2 for 47.8 km/h
Explanation:
Now for (a)
time = velocity/distance
for velocity = 79.2 km/h and distance 0.0586 km
t = (0.0586/79.2)*3600
t = 2.66 seconds (Please note that multiplication with 3600 is to convert hours into seconds)
for velocity 47.8 km/h and distance 0.0242 km
t = (0.0242/47.8)*3600
t = 1.82 seconds
Now for (b)
2as = vf2-vi2
so,
2a(58.6) = -(79.2*1000/3600)^2 (Please note that multiplication and division with 1000 and 3600 respectively is to convert speed unit from km/h to m/s)
a = -4.13 m/s2 for 58.6 m
and
2a(24.2) = -(47.8*1000/3600)^2
a = -3.63 m/s2 for 24.2 m.
Please note that "-" sign express the deceleration.
Answer:
vB = 12 m/s
W = 36 J
Explanation:
Potential energy converts to kinetic energy
½mv² = mgh
v = √(2gh)
vB = √(2(9.8)(7.1 - 0) = 11.796609... m/s
W = mg(hA) - mg(hB) = 0.8(9.8)(7.1 - 2.5) = 36.064 J
<span>As the clay content increases, there is more surface area in the soil for organic matter to adsorb to, which decreases the rate of decomposition.</span>
Push is in, pull is out
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Contact Forces
Frictional Force
Tension Force
Normal Force
Air Resistance Force
Applied Force
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Action-at-a-Distance Forces
Gravitational Force
Electrical Force
Magnetic forces
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