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A canoe has a velocity of 0.550 southeast relative to the earth. The canoe is on a river that is flowing at 0.510 east relative to the earth.
Find the magnitude of the velocity of the canoe relative to the river.
The hammer throw is a track-and-field event in which a 7.30-kg ball (the hammer) is whirled around in a circle several times and released. It then moves upward on the familiar curved path of projectile motion and eventually returns to the ground s..
A flat (unbanked) curve on a highway has a radius of 220 m. A car rounds the curve at a speed of 18.0m/s. What is the minimum coefficient of friction that will prevent sliding
An ideal step-down transformer has a primary coil of 300 turns and a secondary coil of 28 turns. What is the voltage in the secondary coil
An express train passes through a station. It enters with an initial velocity of 22.0 m/s and decelerates at a rate of 0.150 m/s2 as it goes through. How fast is it going when the nose leaves the station
The drawing shows a rectangular block of glass (n = 1.52) surrounded by liquid carbon disulfide (n = 1.63). At what angle of refraction does the ray leave the glass at point B
Two balls are rolled off the tabletop that is 0.75m above the floor. Ball A has a horizontal velocity of 3.2 m/s, how far does each ball travel horizontally before hitting the floor
A projectile of mass 7 kg is fired with an initial speed of 193 m/s at an angle of 16? with the horizontal. At the top of its trajectory, projectile explodes into two fragments of masses 4 kg and 3 kg.
A student holds a tuning fork oscillating at 260 Hz. He walks towards a wall at a constant speed of 1.16 m/s. How fast must he walk away from the wall to observe a beat frequency of 4.50 Hz
Sound waves travel through an aluminum bar at a speed of 1400 m/s. what is the distance between crests on a sound wave traveling through aluminum
If you wrapped a wire 1000 times around a hollow cylinder that was 10 cm long, and forced 4.0 amps of current through this solenoid, what would the strength of the magnetic field be
A 0.227-kg particle undergoes simple harmonic motion along the horizontal x-axis between the points x1 = -0.279 m and x2 = 0.469 m. The period of oscillation is 0.577 s. Find the frequency, f, the equilibrium position, xeq, the amplitude, A, the maxi..
A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. how fast will the disk be turning
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