Ablock of mass m = 10.5 kg rests on an inclined plane with a coefficient of static friction of u0.195 between the block and the plane. the inclined plane is l 6.1 m long and it has a height of h 3.9 m at its tallest point otheexpcrtta. com 20% part (a) what angle, θ in degrees. does the plane make with respect to the horizontal? grade summarv deductions potential 0% 100% cancel sqit sin0 sinh0 submissions attempts remaining: 12 (500 per attempt) detailed view s1 -sinh0 cosh0 tanh0cotanh end degrees radians deli clear submit hint i give up! hints: 1% deduction per hint. hints remaining: 2 feedback: deduction per feedback. 20% part (b) what is the magnitude of the normal force, fy in newtons, that acts on the block? 20% part (c) what is the component of the force of gravity along the plane. fgx in newtons? 20% part d) write an expression in terms of the mass m. the coefficient of static rictionus and the gravitational constant g or the magnitude of the force due to static friction, fs, just before the block begins to slide 20% part (e) will the block slide?

carbon is found in all living things. carbon atoms move constantly through

living organisms, the oceans, the atmosphere, and the earth’s crust in what is

known as the carbon cycle. the directions taken by carbon atoms through this

cycle are very complicated and can take millions of years to make a full circle.

all animals, from humans to the dinosaurs are part of the carbon cycle. when

animals eat food, they get carbon in the form of carbohydrates and proteins.

in animals, oxygen combines with food in the cells to produce energy for daily

activity and then gives off carbon. the carbon combines with oxygen to form

carbon dioxide (co2) and is released back into the atmosphere as a waste

product when animals breathe and exhale.

from 145-65 million years ago, earth was much

hotter than today and covered with dense,

tropical swamp forests. the trees and other

plants were immense and

provided an endless supply of

food for the giant animals that

roamed the land. somewhere in

the air above one of these

forests, a lone carbon atom has joined

up with two oxygen atoms to form a molecule of co2.

the co2 molecule was sucked into the tiny holes (stomata) on the leaf of a

fern plant and joined with sunlight, chlorophyll and water to make food and

energy in the plant’s cells through photosynthesis. the oxygen (o2) from the

co2 molecule was sent back into the atmosphere; the carbon atom (c) was

detached and used to make a molecule of sugar.

if that carbon atom had been eaten instead, a totally

different situation would have developed. let’s say

that a giant plant-eating dinosaur (herbivore) ate the

fern for breakfast, and swallowed the carbon in the

fern in the form of carbohydrates and proteins. in

the process of respiration, oxygen combined with

the carbohydrates and proteins in the dinosaur’s cells

to provide energy for its daily activity.