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you connect a number of identical light bulbs to a flash-light battery a what happens to the brightness of each bulb as
an ice cube of uniform density 100 cm on a side is floating inpure water a student pushes the cube down slightly with
two solid sphere simultaneously start rolling from rest downan incline one sphere has twice the radius and twice the
a typical incandescent lightbulb has a filament temperature ofapproximately 3143 k at what wavelength is the intensity
a diffraction grating with 1000 slitscm is oriented parallel to the y-axis and its center is located onthe x-axis at x
two 120-v light bulb ones 25-w and one 200-w were connected in series across a 240-v linenbsp it seemed like a good
consider an organ pipe that is closed at one end and open at theother this pipe has resonant frequencies of 420 hz and
a how can a rocket change direction when it is far out inspace and is essentially in a vacumb a bungee jumper
an image of the moon is focused onto a screen using a converginglens of focal length f 343 cm the diameter of themoon
a woman stands between a vertical mirror 080 m tall and a distant tree whose height is h she is 285 m from the mirror
a bullet of mass 105 g is fired into aninitially stationary block and comes to rest in the block theblock of mass 080
a movie camera with a single lens of focallength 75 mm takes a picture ofa person standing 34 m away if the person is
a hand exerts a constant horizontal force on a block that isfree to slide on a frictionless surface the block start
during basketball parctice shane made a jump shot releasing a060-kg basketball from his hands at a height of 20-m above
a 50-kg satellite circles the earth in an orbit with a period of120 min what minimum energy is required to change the
a certain object has a mass in air of 0422 kg and a mass whensubmerged in benzene dbenzene 090 x 103 kgm3 of 0367 kg
a three-legged wooden bar stool made out of solid douglas firhas legs that are 25 cm in diameter when a 70 kg man sits
a wire has a current density of 170 amm2 if thedrift velocity is 40 x 10-8 ms how many free electrons does the wire
abullet of mass m 0010 kg andspeed v passescompletely through a pendulum bob of mass m 12 kg thebullet emerges with a
two parallel plates having charges of equal magnitude but oppositesign are separated by 12cm each plate has a charge
a uniform solid sphere of radius r 050 m and a mass 15 kgrotates about the z-axis through its center find its angular
in the park a mom pushes tangentially on a hand-drivenmerry-go-round and is able to accelerate it from rest to
2 kg mass is slidingover a frictionless surface with a velocity of 7 ms when itenocunters a frictionless ramp as shown
a fireworks rocket is launched vertically into the night dky with an initial speed of 476ms the rocket coasts after