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What is the magnitude of the acceleration of the ball just before it strikes the ground? What was the initial speed of the ball? What initial speed must the ball have if it is to land with a speed of 5.6m/s ?
What linear speed must a 4.5×10?2 hula hoop have if its total kinetic energy is to be 0.15 ? Assume the hoop rolls on the ground without slipping.
Explorer is caught in a whiteout (in which snowfall is so thick that the ground cannot be distinguished from the sky) as returning to base camp.
You have a concave lens whose focal length has an absolute value of 8 cm and several convex lenses with f=5.0 cm, 12 cm, 15 cm, and 20 cm. determine the focal length of the concave lens
Two narrow slits are illuminated by a laser with a wavelength of 549nm. The interference pattern on a screen located x = 4.50m away , Calculate the distance between the two slits
A wheel 45.0 cm in diameter accelerates uniformly from 206rpm to 340 rpm in 7.0 s. How far will a point on edge of the wheel have travelled in this time.
A 4.5kg box slides down a 4.6m -high frictionless hill, starting from rest, across a 2.4m -wide horizontal surface, What is the speed fo the box just before hitting the spring
the froghopper philaenus spumarius holds the world record for insect jumps. when leaping at an angle of 58.0degree
0.150kg stone rests on a frictionless, horizontal surface. A bullet of mass 5.00g , traveling horizontally at 380m/s , Compute the direction of the velocity of the stone after it is struck
A technician wraps wire around a tube of length 40.0 cm having a diameter of 7.90 cm. find the self-induced emf in the solenoid?
Find a Compact Disk. find a white light source and see if you can convince yourself that you are looking at the reflection of the light source as seen in the first order m = 1 maxima, estimate the spacing between the tracks of a CD
A coil has an inductance of 0.45 H and a resistance of 42 ohms. The coil is connected to a 5.6 V ideal battery. What is the total power that the battery supplies
A long straight cylindrical wire conductor of radius R carries a current I of uniform current density in the conductor. Find the magnetic field outside the wire
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