Mathematics Integration Level: Misc Level
A closed right circular cylinder has a volume of 2156 cubic cm. What will be the radius of its base so that its total surface area is minimum? Find the height of the cylinder when its total surface is minimum. Take =22/7
Mathematics Integration Level: Misc Level
A rectangular sheet of tin 45 cm by 24 cm is to be made into a box without top by cutting off squares from the corners and folding up the flaps. What should be the side of the square in order that the volume of the box is maximum?
Physics Units Level: Misc Level
the density of wood in the cgs system is 0.5 g over cm^3 the corressponding value in SI units are?
Physics Force & Laws Of Motion Level: Misc Level
a car traveling at 20 m/s is brought to a halt by applying the brakes in 4 s. what is the magnitude of acceleration of the car?
Physics Vectors Level: Misc Level
a person movers 30 m north, then 20 m east then 30 square root 2 m south west his displacement from the original opsition is?
Physics Force & Laws Of Motion Level: Misc Level
a safe with a mass of 150 kg is at rest on the floor what is the minimum horizontal force needed to move the crate if the coefficent of static friction between the safe and the floor is 0.3? (assume g=10 m/s^2)
Physics Gravitation Level: Misc Level
a person weighs 588 N on the earth what is her mass on a planet where the acceleration due to gravity is 12 m/s^2? (assume g on earth as 9.8 m/s^2)
Physics Force & Laws Of Motion Level: Misc Level
in an atwoods machine experiment the larger mass is 1.8 kg and the smaller mass is 1.2 kg ignoring friction the acceleration of the masses when released from released from rest is?
Physics Force & Laws Of Motion Level: Misc Level
an elevator is moving downward with an acceleration of 2.0 m/s^2. what is the force exerted on the elevator floor by a 75 kg person (assume g=10 m/s^2)
Physics Modern Physics Level: Misc Level
a proton is moving in a circular path of radius 1 m with a uniform speed of 1.0x^6 m/s the acceleration of the proton has a magnitude of?
Physics Kinematics Level: Misc Level
an object, initially at rest is dropped from a height of 20 m what is the speed of the object when it hits the ground? (assume g=10 m/s^2)
Physics Work,Power & Energy Level: Misc Level
the potential energy, U is calculated using the formula U= mgh. if m=12 kg, g= 9.8 m/s 2 and h=6.50 m, the potential energy U with the correct significant figures is?
Physics Measurements Level: Misc Level
the number of significant figures in 2.00 x 10^-5 m is? it should say 10 to the negitive 5th power
Physics Measurements Level: Misc Level
volume of a cylinderical tank is calculated by measuring its radius as 3m with a maximum error of +-1.5% and the height as 5m with a maximum error of +- 1% the volume of the tank is?
Physics Measurements Level: Misc Level
measurement is recorded as 2+0.1 the relative error is ? the + and are suppose to be right over each othered
