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it is possible to shoot an arrow at a speed as high as100ms1 how long would the arrow be in the air2 if friction is
a man walks 3 miles east in 1 hour at a constant velocity then walks two miles east at a constant velocity in 20
a highway curve has a radius of 014 km and is unbanked a car weighing 12 kn goes around the curve at a speed of24 ms
two thin slits are 0050 mm apart monochromatic light of wavelength 634 nm falls on the slits if there is a screen 60 m
at 1200 pm a woman drives at a constant velocity of 50 kmh north for 1 hour accelerates at a uniform rate for 20
a doubly charged ion with velocity 69 times 106 ms moves in a path of radius30 cm in a magnetic field of 080 t in a
a single slit which is 0050 mm wide is illuminated with light of 550 nm wavelength what is the angular separation among
the electron and proton in a hydrogen atom are separated by a distance of approximately 53x10-11 m discover the
a small sphere with a mass of 200times10minus3gand carrying a charge of 480times10minus8 c hangs from a thread near a
two containers of mass 20 kg and 65 kg respectively are connected with cable over a light and frictionless pulley which
a lens maker desires to make a lens of focal length 30 cm in air the equipment in the shop is set to make lens faces of
a rubber ball is dropped and bounces vertically from a horizontal concrete floor if the ball has a speed of 32 ms now
the drawing shows a collision among two pucks on an air-hockey table puck a has a mass of 00100 kg and is moving along
a certain elevator cab has a total run of 190m and a maximum speed of 305mmin and it accelerates from rest and then
in which one of the following circumstances does the principle of conservation of mechanical energy apply even though
an object is thrown downward with an initial speed of 10 ms-1 from a height of 40 m above the ground at the same
a 6 muf and a 10 muf capacitor are connected in parallel across a 40 v dc battery the capacitors are then allowed to
a flashlight on the bottom of 396 m deep swimming pools ends a ray upward and at an angle so that the ray strikes the
assume that while moving into an apartment you move a refrigerator into place by sliding it across the floor the
a ball bearing is dropped from rest at a point a at the instant it passes a mark 47 m below a another ball bearing is
the spring in a clothespin is compressed 040 cm storing energy in the form of spring potential energy if the spring is
a soccer ball is released from the top of a smooth incline after 420 s the ball travels 111 m one second later it has
a horse ran the kentucky derby with times of 252 s 240 s 238s and 230 s for the quarter mile a discover his average
a cumin canister of mass m 04 kilogram slides across a horizontal frictionless counter with speed v 05 ms it then