Answer:
Explanation:
a) Energy stored in spring = 1/2 k x² = .5 x k 0.1²
500 = 5 x 10⁻³ k ,
k = (500/5) x 10³ = 10⁵ N/m
b )
k = 4.5 x 10¹ = 45 N/m
Stored energy = 1/2 k x² = .5 x 45 x 8² x 10⁻⁴ =1440 x 10⁻⁴ J
This energy gets dissipated by friction .
work done by friction = μ mg d
d is the distance traveled under friction
so 1440 x 10⁻⁴ = μ x 3 x 9.8 x 2
μ = 245 x 10⁻⁴ or 0.00245 which appears to be very small. .
In 16 times
KE= o.5 m times V squared
The force ffrom the ground that holds the rock up and prevents her from falling through the gound, unless the ground breaks.
Upper fixed point is a temperature of stem from water boiling and standards atmospheric pressure
Lower fixed point is the temperature of pure melting ice.
Answer:
show how you would connect three resistors each of resistance 6 ohm so that the combination has a resistance of first 9 ohm second 4 ohm
Explanation:
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