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A petite young woman distributes her 510 N weight equally over the heels of her high-heeled shoes. Each heel has an area of 0.850 cm2 .
What pressure is exerted on the floor by each heel?
With the same pressure, how much weight could be supported by two flat-bottomed sandals, each of area 190 cm2?
An electron in a conjugated hydrocarbon is confined to an effective distance of 8.27 Å. calculate the minimum uncertainty in the speed of the electron
After the Sun exhausts its nuclear fuel, its ultimate fate may be to collapse to a white dwarf state. Calculate the surface free-fall acceleration
questiona place kicker must kick a football from a point 25.0 m 27.3 yd from the goal and the ball has to clear the
an air gap capacitor is charged up to 10 v and then disconnected. if a material is added to the gap between the plates
You are designing an elevator for a hospital. The force exerted on a passenger by the floor of the elevator is not to exceed 1.51 times the passenger's weight. What is the maximum speed of the elevator
When a light bulb is turned on, 8.10 C of charge passes through the filament of the bulb in 18.0 second. Estimate the average current in the light bulb
The top and bottom margins of a poster are 4 cm and the side margins are each 5 cm. find the dimensions of the poster with the smallest area
A hockey player is standing on his skates on a frozen lake when an opposing player skates by with the puck, moving at a uniform speed of 12m/s. How long does it take to catch the opponent
How fast (as a percentage of light speed) would a star have to be moving so that the frequency of the light we receive from it is 14.0 % higher than the frequency of the light it is emitting?
A spring gun (k = 28.8 N/m) is used to shoot a 58.4-g ball horizontally. What is the speed of the ball when it hits the ground, 1.23 m below the spring gun
Suppose you are an astronaut and you have been stationed on a distant planet. What is the acceleration due to gravity on the planet
An object with a height of 47 centimeter is placed 2.4 meter in front of a convex mirror with a focal length of -0.40 meter. Compute is the image upright or inverted
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