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A batter hits a pitched ball when the center of the ball is 1.09 m above the ground. The ball leaves the bat at an angle of 45° with the ground. With that launch, the ball should have a horizontal range (returning to the launch level) of 107 m.
a) Does the ball clear a 10.64-m-high fence that is 97.5 m horizontally from the launch point?b) What is the distance between the top of the fence and the center of the ball when the ball reaches the fence?
A 5C charge moves with velocity v = 10i + 3 j - 7 k m/sec in magnetic field B = 5i+ 13j - 1k tesla. find directions of magnetic force on the moving charge
A steel piano wire (Y = 2.0 x 10^11 Pa) has a diameter of 0.80 mm.One end is fixed in place and the other end is wrapped around atuning pin of diameter 8.0 mm. The length of the wire (notincluding the wire wrapped around the tuning pin) is 66 cm.
You power a series R-L-C circuit with a sine-wave generator operating at a frequency 1.00 kHz. What is the rms voltage supplied by the source
A runner accelerates to a velocity of 5.36 m/s due west in 3 s. His average acceleration is 0.64 m/s2, also directed due west. What was his velocity when he began accelerating
A 9.58 m × 14.9 m house is built on a 14.2-cm-thick concrete slab. What is the heat-loss rate through the slab
the ocean of the world covers three-quarters of the earths surface and have an average depth of 3.8 km. if the
A small square loop carries a 48A current. The on-axis magnetic field strength 43cm from the loop is 6.8nT
The first and second electron shells of an element are filled and there are five electrons in the third electron shell
A fighter pilot dives his plane toward the ground at400 m/s. He pulls out of the dive on a vertical circle. What is the minimum radius of the circle
A lamp (R = 146 omegacap.gif), an electric heater (R = 25 omegacap.gif), and a fan (R = 51 omegacap.gif) are connected in parallel across a 115 V line. What power is expended in the heater
1200 KVA TRANSFORMER CHANGES TEH INCOMING VOLTAGE FROM 1200 VOLTS TO 400 VOLTS. WHAT IS THE INCOMING CURRENT
A 5.63 kg crate slides on a horizontal surface. The coefficient of kinetic friction between the surface and the crate is 0.383. estimate the magnitude of the external force acting on the crate
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