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In a jump spike, a volleyball player slams the ball from overhead and toward the opposite floor. Controlling the angle of the spike is difficult. Suppose a ball is spiked from a height of 2.30 m with an initial speed of 18.0 m/s at a downward angle of 14.0°. How much farther on the opposite floor would it have landed if the downward angle were, instead, 6.0°?
The motor of a ski boat generates an average power of 5.94 × 104 W when the boat is moving at a constant speed of 18.8 m/s. What is the tension in the tow rope that is pulling the skier
steam enters a turbine operaing at steady state at 700of and 450 psi and leaves as a saturated vapor at 1.2 psi. the
A thin double convex glass lens with an index of 1.56 while surrounded by air has a 10 cm focal length. what is the focal length of the lens in water
The steel I-beam in the drawing has a weight of 1.50 × 103 N and is being lifted at a constant velocity. What is the tension in each cable attached to its ends
Coherent light with wavelength 603 passes through two very narrow slits, and the interference pattern is observed on a screen a distance of 3.00 from the slits.
A force F = 200i - 400j + FZ k N, is acting through point A(0,0,0) m. If F creates a moment component of -3000 Nm in the direction of a line passing from point B (2,4,5) m to point C(-3,6,8) m
A 0.50 kg physics book with dimensions of 25 cm 20 cm is on a table. What force does the book apply to the table
A mass on a spring has an angular oscillati0n frequency of 2.81 rad/s. what is the potential energy stored in the mass-spring system
A particle with radius r=5i+4k+3k has a force of F=3i-8j+5k acting on it. What is the torque in unit vector notation about the origin
An electron moving at 3.60 103 m/s in a 1.10 T magnetic field experiences a magnetic force of 1.40 10-16 N. What angle does the velocity of the electron make with the magnetic field? There are two answers between 0° and 180°. 1 ° (smaller value) 2 ° ..
Three charges are at rest on the z axis: q1 = ?7.21 mC at z = 4.58 m, q2 = ?1.79 mC at z = 0 m, What is the potential energy of this system
With each cycle, a 2510-W engine extracts 2070 J from a thermal reservoir at 90 °C and expels 1340 J into a thermal reservoir at 20 °C. What is the work done for each cycle? What is the engine's efficiency?
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