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A roller coaster goes through a complete loop. If the train is given an initial speed of v0 = 30 m/s, what is the largest value that the radius R can have if the car is to remain in contact with the circular track at all times?
A photoflash unit makes a very bright light for a very short time, Which is important: the intensity of the light, or the product of the intensity and the time of the flash
The three displacement vectors in the drawing have magnitudes of A = 5.47 m, B = 5.43 m, and C = 3.91 m. Find the resultant ((a) magnitude and (b) directional angle) of the three vectors by means of the component method. Express the directional an..
A 206 kg cart runs into the rear end of a 102 kg cart that is stationary. What is the speed of the moving cart before the collision
A 1.87 kg rolling hoop with a radius of 6 cm rolls without slipping. If the angular speed of the hoop is 2.82 rad/s , compute rotational kinetic energy of the rolling hoop in Joules
how would you describe the discoveries of benjamin franklin robert millikan cgarles-augastin de coulomb and ernest
A 40 kg box is sliding down a ramp angled at 15 degrees down from the horizontal. find the force of friction between the box and the ramp
A 90 g bead on a 60 cm long string is swung in a vertical circle about a point 200 cm above the floor
A parallel-plate capacitor is made from two plates 12.5 cm on each side and 4.20 mm apart. Half of the space between these plates contains only air, but the other half is filled with Plexiglas of dielectric constant 3.40.
an electron in the hydrogen atom is in an excited state given by n4 l3 ml2 ms12. list the possible final states the
A 0.24-kg block rests on a table, and a 012-kg is placed on top of it. What is the highest angular frequency for which the upper block will not slip with respect to the lower block
You have a cube with electic potential that varies with V=kx3. What is the total charge enclosed in the cube
A solid block of copper (p = 8920 kg/m^3) with a volume of 0.2 m^3 is submerged in water. What is the buoyancy force on the block
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