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Water from a garden hose that is pointed 28 degree above the horizontal lands directly on sunbather lying on the ground 3.9 meter away in the horizontal direction. If the hose is held 1.4 meter above the ground, compute at what speed does the water leave the nozzle?
A bungee jumper undergoes simple harmonic motion with amplitude 6.4 m and frequency 0.145 Hz. Determine the bungee jumper's velocity at 0.25 seconds
A metal ball with diameter of a half a centimeter and hanging from an insulating thread is charged up with 1020 excess electrons. An initially uncharged identical metal ball hanging from an insulating thread is brought in contact with the first ball,..
A car goes around a curve on a road that is banked at an angle of 35.0^\circ. What is radius of curve
Suppose the coefficient of static friction between the road and the tires on a car is 0.60 and the car has no negative lift. What speed will put the car on the verge of sliding
What apparent free-fall acceleration is experienced by the managers remaining on the rim assume that the average mass for each inhabitant is 65kg.
Two horses pull a large crate of negligible mass at constant speed across a barn floor by means of two light steel cables. What is the work done by each horse if the box is moved a distance of 29 m
an object falls freely from height h. it is released at time zero and strikes the ground at time t.a when the object is
Ultraviolet light with a wavelength of 10.0 nm shines on a gas of hydrogen atoms in their ground states. Some of the atoms are ionized by the light. What is the kinetic energy of the electrons that are freed in this process?
Jason is practicing his tennis stroke by hitting balls against a wall. The ball leaves his racquet at a height of 60 cm above the ground at an angle of 80' with respect to the vertical. Is ball on its way-up or down when the ball strikes the wall?
a particular spring has a force constant of 2.0times103nm .ahow much mass would have to be suspended from the vertical
A cube of iron 4cm on a side is floated in a bath of mercury. The density of iron is 7.87 g/cm^3. What percent of the cubes mass is located below the surface of the mercury?
Radioactive isotopes are often introduced into the body through the bloodstream. If the decay rate in the thyroid 24.0 d later is actually measured to be 17.0Bq , what percent of the tracer went to that gland
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