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A group of physics students are conducting an experiment in projectile motion. They want to launch a ball into a bucket that is 8 meter away from their spring loaded launcher. They have hypothesized that by setting their launcher to its long range setting and placing the launcher barrel at a 35o angle that they can consistently hit the bucket when they fire the launcher. Neglect air resistance; Find the time of flight for the ball in their experiment.
A 5.1 kg bucket of water is raised from a well by a rope. find the force exerted by the rope on the bucket.
a car weighing 10 n on a hill which makes an angle of 20 degree with the horizontal.find the components of cars weight
An isolated copper sphere of radius 3.00cm, initially uncharged, is illuminated with ultraviolet light of wavelength 180nm. what charge does the photoelectric effect induce on the sphere
Write three methods of increasing the volume of a balloon
The resistance across your (wet) tongue, from one side to the other near the tip, is 375 ? (assume that your tongue is an ohmic material). What current is flowing through the saliva that coats your tongue
A standing wave in a column of air with both ends open has a frequency of 440 Hz. The next higher harmonic has a frequency of 700 Hz. How long is the column of air
Consider two parallel-plate capacitors, C1 and C2, that are connected in parallel. The capacitors are identical except that C2 has a dielectric inserted between its plates. What is the final voltage across the two capacitors
A light beam traveling through air, enters a slab with n= 2.50 at a 45º angle with respect to the normal, At what angle to the normal does the ray leave the slab
if one of the two electrons of a h2 molecule is removed we get a hydrogen molecular ion. in the ground state of an the
The owner of a van installs a rear-window lens that has a focal length of -0.300 m. How far from the van is the object actually located
An 800-N man stands halfway up a 5 m long ladder of negligible weight. The base of the ladder is 3 m from the wall as shown. suppose that the wall-ladder contact is frictionless, wall pushes against the ladder with a force of what magnitude.
Given that the radius of the Moon is roughly one-quarter that of the Earth, find the mass of the Moon in terms of the mass of the Earth
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