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a spherically symmetric object with a density of 157gcm3 and a radius of 165cm is falling assuming is has a drag
an object of mass m 545kg is suspended from the ceiling of an accelerating truck by a string the truck is traveling in
a satellite circles the earth in an orbit whose radius is 362 times the earths radius the earths mass is 598 x 1024 kg
a stunt driver wants to make his car jump over eight cars parked side by side below a horizontal ramp the vertical
objects of masses m1 400 kg and m2 900 kg are connected by a light string that passes over a frictionless pulley as
in a game of basketball a forward makes a bounce pass to the center the ball is thrown with an initial speed of 43 at
a cat walk 80m north 50m east and then 60m south what is the magnitude of the cats displacement from the starting
a man seeking to set a world record wants to tow a 104000-kg airplane along a runway by pulling horizontally on a cable
a solid metal sphere of radius a 130 cm is surrounded by a concentric spherical metal shell of inner radius b 250 cm
a small rock moves in water and the force exerted on it by the water is given by equation fkv the terminal speed of the
the left end of a long glass rod 800 in diameter with an index of refraction 160 is ground to a concave hemispherical
a 940kg motorboat accelerates away from a dock at 21ms2 t its propeller provides a thrust force of 40kn what drag force
two resistors 660 and 680 are connected in parallel the current through the second resistor is 380 aa determine the
a fan is turned off and its angular speed decreases from 85 rads to 5 rads in 50sa what is the magnitude of the angular
a 10 micro falad capacitor is charged so that the potential difference between its plates is 10 v a 5 micro falad
an airplane with a speed of 777 ms is climbing upward at an angle of 455 deg with respect to the horizontal when the
in a marathon race chad is out in front running due north at a speed of 388 ms john is 97 m behind him running due
in the bohr model of the hydrogen atom an electron moves in a circular path around a proton the speed of the electron
a curve in a road forms part of a horizontal circle as a car goes around it at constant speed 140 ms the horizontal
what if initially a charge 20 c is put on shell 1 with radius 32 m then a far away shell 2 initially neutral with
one common kind of computer keyboard is based on the idea of capacitance each key is mounted on one end of a plunger
the capacitance of an empty capacitor is 12microf the capacitor is connected to a 12-v battery and charged up with the
a dielectric-filled parallel-plate capacitor has plate area 100mm plate separation 100mm and dielectric constant
1 in humans most cancers are caused bya uv radiationb dietary fatc x-raysd tobacco2 a dna microarray is used toa detect
1 which of the following is nota major function of the plasma proteins in the blood2 what intertidal area has the