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A steel ball is fastened to a cord and is released from rest when the string is horizontal. At the bottom of its path theball strikes a steel block initially at rest on a frictionless surface as indicated. The collision is elastic.
a) Explain how you would find the speedof the ball and the speed of the block immediately after the collision.b) Indicate what quantities need to be given to solve the problem.
A planet's moon travels in an approximately circular orbit ofradius 7.0 x 107 m with a period of 6 h 29 min. Calculate the mass of the planet from this information
Sam is taking his girlfriend Sally out for a ride in his boat. He starts out at rest. He accelerates with an acceleration of 0.168 m/s^2 for 85.6 s. What is the total time the boat moves
A uniform ladder 6.58 m long weighing 460 N rests with one end on the ground and the other end against a perfectly smooth vertical wall, Find the friction force that the floor exerts on the ladder
It is desired to magnify readingmaterial by a factor of 2.5X when a book is placed 8cm behind alens. what type of lens is needed
a 1.5 cm diameter suction cup is pressed to the ceiling. a 51kg weight hangs from the center of the cup by string neglect the mass of the suction cup and string. find the normal force on the suction cup
calculate the specific heat of a metal. in jkg.k from the following data. a container made of the metal has a mass of
to move a large crate across a rough floor you push on it with a force f at an angle of 21deg below the horizontal.
Styrofoam has a density of 300 kg/m^3. What is the maximum mass that can hang without sinking from a 40cm diameter Styrofoam sphere in water? Assume the volume of the mass is negligible compared to that of the sphere.
two small objects a and b are fixed in place and separated by 3.15 cm in a vacuum. object a has a charge of 2.02 microc
With the switch open the ammeter reads 1.00 A. What is the resistance of resistor R2 to an appropriate precision and what is the potential difference across R2 when the switch is open?
A diathermy machine, used in physiotherapy, generateselectromagnetic radiation that gives the effect of "deep heat" whenabsorbed in tissue. What is the wavelength of this radiation
an 82 kg logger is standing on a stationary 360 kg log floating at rest in a pond. the logger begins to walk along the
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