Answer:1834.56 joules
Explanation:
Distance=36m
Coefficient of friction=0.2
Mass=26kg
Acceleration due to gravity=9.8m/s^2
Reaction=mass x acceleration due to gravity
Reaction=26 x 9.8
Reaction=254.8N
Coefficient of friction=frictional force ➗ reaction
0.2=frictional force ➗ 254.8
Frictional force=0.2 x 254.8
Frictional force=50.96N
work=friction force x distance
Work=50.96 x 36
Work=1834.56
Work=1834.56 joules
Lithium has five isotopes, and each will have different notation. Lithium-7 is commonly used in salt and nuclear reactors. .ZAX , where X is the atomic symbol for the element, here Li for lithium, Z is the mass number, or the total number of protons and neutrons, and A is the atomic number, or the number of protons
According to the saving of the momentum, the total momentum before collision is equal to the total momentum after collision
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then, the initial momentum of the second cart
Answer:
i/f = i/o + i/i f = focal, o = object, i = image
1 / i = 1 / f - 1 / o = (o - f) / o f
i = o * f / ( o - f) image distance
i = 12.5 * 22 / (12.5 - 22) = -28.9 cm
Image is real
Image is 28.9 cm to left of lens
M = - i / o = = 28.9 / 12.5 = 2.3 magnification (convex lens)
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