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If the density of seawater is 1.03 g/cm3
at the surface, what is its density at a depth where
the pressure is 109 dynes/cm2?
A cube made of an unknown material has a dimension of 6 cm on all edges. If the upper face
is displaced laterally by 0.1 mm by a force of 2 x 106 dynes acting parallel to the surface,
calculate the shear modulus of the material
A rubber band 20 cm long has a cross-sectional area of 4 mm2
. What load will stretch the
rubber band 1 mm if the modulus of elasticity of rubber band is 4 x 10-15 dynes/cm2?
A steel wire of diameter 1 mm can support a tension of 0.2 kN. Determine the diameter of a
steel cable to support a tension of 20 kN?
clock in the moving coordinate system reads t’ = 0 when the stationary clock reads t = 0. If the moving frame moves at a speed of 0.800c, what time will the moving clock read when the stationary observer reads 15.0 hr on her clock?
The USS Enterprise approaches the planet Alpha Centaury 4 at a speed of 0.800 c. Captain Kirk observes an airplane runway on the planet to be 2.00 km long. The air controller on the planet says that the runway on the planet is how long
100 lb blocks slides down a frictional inclined plane at an angle of 60 degree with the horizontal determine the accelerating force.the time required travel the first 20ft and the time required to travel the next 20 ft
21 kg mass is located on the ground the static friction coefficient is 0.75 and the kinetic friction coefficient is 0.65 the mass pushes with 215 N of force an angle of 20° below the horizontal
A woman of mass m = 60 kg descends in an elevator in that briefly accelerates downward at a = 0.20g. If she stands on a scale, what is the reading on the scale that is apparent/effective weight w?
A 200 glider and a 600 g glider are coupled together and move along a frictionless air track at 50 cm/s. An explosive charge on one of the gliders separates them, causing the 200 g glider to stop. What is the subsequent velocity of the 600 g glider?
