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A projectile of mass 0.868 kg is shot straight up with an initialspeed of 28.6 m/s. (a) How high would it go ifthere were no air resistance? (b) If theprojectile rises to a maximum height of only 7.53 m, determine the magnitude of the average force due to air resistance.
a parallel-plate capacitor is made of two flat metal plates pressed against a thin slab of dielectric material. the
the disk of the milky way is about 105 light years in diameter. a cosmic-ray proton enters the galactic plane with
An injured monkey sits perched on a tree branch 3.0 m above the ground, while a wildlife veterinarian is kneeling down in the bushes 88.5 m away attempting to subdue the monkey with a tranquilizer gun.
Dan is gliding on his skateboard at 4.00m/s . He suddenly jumps backward off the skateboard, How fast is Dan going as his feet hit the ground
sound travels at a speed of about 344 in air. you see a distant flash of lightning and hear the thunder arrive 7.7
An airplane is flying in a horizontal circle at a speed of 520 km/h. If the wings of the plane are tilted 34° to the horizontal, what is the radius of the circle (in m) in which the plane is flying
A supply plane needs to drop a package of food to scientists working on a glacier in Greenland. How far short of the target should it drop the package
Two flat surfaces are exposed to a uniform, horizontalmagnetic field of magnitude 0.49 T. When viewed edge-on, the firstsurface is tilted at an angle of 11° from the horizontal, and anet magnetic flux of 8.00 10-3 Wb passes through it. The same ne..
Proton in a well. Figure 24-51 shows electric potentialV along an x axis. A proton is to be released atx = 3.3 cm with initial kinetic energy 3.0 eV. The scale of the vertical axis is set by Vs = 10.0 V.
Two steel guitar strings have the same length. String A has a diameter of 0.59 mm and is under 450.0 N of tension. Find the ratio of the wave speeds
In a particular region of Earth's atmosphere, the electric field above Earth's surface has been measured to be 147 N/C downward at an altitude of 250 m, Calculate the volume charge density of the atmosphere
A solenoid 24.0cm long and with a cross-sectional area of 0.600cm^2 contains 420 turns of wire and carries a current of 75.0 A. Calculate the magnetic field in the solenoid
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