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A golfer imparts a speed of 37.1 m/s to a ball, and it travels the maximum possible distance before landing on the green. The tee and the green are at the same elevation. (a) How much time does the ball spend in the air? (b) What is the longest "hole in one" that the golfer can make, if the ball does not roll when it hits the green?
A 100 W light bulb has a resistance of about 12 ohms when cold (20 degrees C) and 140 ohms when hot. Estimate the temperature of the filament
Two beams of 1keV neutrons intersect at an angle of 30o. One beam has a neutron density of 1×106 neutrons/cm3. The other beam has a neutron density of 3×106 neutrons/cm3
X rays with intial wavelegnth 6.75*10^-2nm undergo compton scattering, At which scattering angle is this wavelength observed
A typical adult ear has a surface area of 1.45 × 10-3 m2. The sound intensity during a normal conversation is about 2.49 × 10-6 W/m2 at the listener's ear. How much power is intercepted by the ear
A raft is constructed of woodhaving a density of 626.2kg/m3. how deep is the bottom of the raft below water level
It's possible to use the ideal-gas law to show that the density of the earth's atmosphere decreases exponentially with height, What is the weight of a column of air
(a) Find the components of the net electric field at the origin. Ex = , Ey = (b) Find the magnitude and direction of the net electric field at the origin. |E| = at direction (from +x axis).
q1. if a disco disk is rotating with a person on it on the outer side then if he moves inside towards the center the
Insects do not have lungs as we do, nor do they breathe through their mouths. Instead, they have a system of tiny tubes, called tracheae, through which oxygen diffuses into their bodies. find the oxygen concentration at the interior end of the tube
three blocks are attached to each other via ropes and pulleys as shown. assume the pulleys are frictionless and the
a ditch 2.5 m wide crosses a trail bike path. nbspan upward incline of 15 degrees has been built up on the approach so
Tritium (3/1 H) is a heavy isoptope of hydrogen, with an atomic mass of 3.016049u. Normal hydrogen has an atomic mass of 1.007825u, find the binding energy per nucleon for titium
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