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A projectile of mass 0.868 kg is shot straight up with an initialspeed of 28.6 m/s. (a) How high would it go ifthere were no air resistance? (b) If theprojectile rises to a maximum height of only 7.53 m, determine the magnitude of the average force due to air resistance.
A container of volume V is divided by partitions into three parts containing one kilomole of helium gas, Calculate the kilomole fraction and the partial pressure of each gas in the mixture
an airplane flies 120 km at a constant altitude in a direction 30.0deg north of east. a wind is blowing that results in
A copper block is removed from a 310 C oven and dropped into 1.10 kg of water at 20.5 C. What is the mass of the copper block
What will the maximum kinetic energy of the photoelectrons ejected from magnesium (for which work function (line through 0) 0=3.7 eV) when irradiated by ultraviolet light of frequency 1.5 X 10^15 sec^-1
A non-uniform bar 5 meters has a center of gravity 1 meters from the heavy end. If it is placed on the edge of a block 1 meters from the light end and a weight of 1497N is placed at the light end of the bar, it will be balanced. What is the weight..
Determine the mass of a 4.6 meter beam, if it is balanced on a fulcrum 2.16 meters from the left end. A 820 N man stands on the very left end, and a 360 N girl stands on the right end. (in kg)
You produce an image of the Sun on a screen using a thin lens whose focal length is 28.3 cm. What is the diameter of the image in millimeters
A one kilogram textbook drops from a one-meter high table in a room at 250C temperature. Find the change in entropy after the system has reached equilibrium
Water is flowing through a channel that is 12m wide with a speedof 0.75m/s. find the speed of the water in oneof the smaller channels
the electric potential at the center of a square is -3 v when a charge of -q is located at one of the squares corners.
a boeing 747 jumbo jet has a length of 59.7 m. the runway on which the plane lands intersects another runway. the width
Suppose that the electric potential outside a living cell is higher than that inside the cell by 0.069 V. How much work is done by the electric force
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