what's the radius of benzene ring?thank you!

what's the radius of benzene ring?thank you! 英语翻译1.the height of the atmosphere is about 30km.the radius of earth is 6400km.what percentage of earth's radius is the height of the atmosphere?2.how would the density of air at the bottom of a deep mine shaft compare to the density of the a What is the rate of change of the volume of a sphere with respect to the radius when the radius is 1）The sum of the area s of two circles is 65pi square feet.The length of a radius of the larger circle is one foot less than twice the length of the radius of the smaller circle.Find the length of a radius of each circle.2) The combined area of a s what is the circumference of a circle whose central angle is 60.and the radius is 12ft? Suppose our Sun eventually collapses into a white dwarf,losing about half its mass in the process,and winding up with a radius 1.0% of its existing radius.Assuming the lost mass carried away no angular momentum,what would the Sun's new rotation rate AP:what is the radius of a cylindrical soda can with volume of 512 cubic inches that will usewhat is the radius of a cylindrical soda can with volume of 512 cubic inches that will use the minimum material? Physics1) A rocket engine ejects 60kg of hot gas at a speed of 90m/s in 20s.Find:a) The change in momentum of the hot gas and b) The thrust(in Newtons)of the engine.2) What is the radius of the circle in which a 240-kg motorcycle and rider are travel 英语翻译A circle of radius 2 rolls completely around the inside perimeter of a square of side 10.What distance is covered by the centre of the circle? According to Kepler's third law,the orbital period T of a planet is related to the radius R of itsorbit by T2 R3.A planet's orbit is larger than Earth's by a factor if4.97.What is the planet's orbital period?(Earth's orbital period is 1 yr.) what's the hell of what's the hell of Two charged spherical conductors are connected by a long conducting wire,and a charge of 19.9uC is placed on the combination.If the first sphere has a ridius of 3.73cm and the second has a radius of 6.24cm,what's the electric field of each sphere?那 What’s the number of What's the height of 英语翻译to bind seven logs together,each of which has a radius of 10 cm,what is the length of wires at least? Driving in your car with a constant speed of 12 m/s,you encounter a bump in the road that has a circular cross-section.The radius of curvature of the bump is 36.4 m.At what speed must you go over the bump if people in your car are to feel weightless 美国大学物理题 救命啊Problem 5.A car is about to make a turn at v=3m/s such that the radius of the kissing circle at the turn is 10m.What should the minimum coefficient of friction be so that the car does not slip on the road?A) 0.09B) 0.04 英语翻译The electron at the radius r experienced a repulsion from the total charge within the sphere of radius r；charge outside that radius has no net effect