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In Dallas, the morning after a winter ice storm, a 1400 kg automobile going west on Chestnut Street at 34.0 km/h collides by a 2800 kg truck going south across Chestnut Street at 52.0 km/h. If they become coupled on collision, what are the magnitude and direction of their velocity after colliding? You can ignore forces among the vehicles and the icy road.
block 1 of mass m1 slides from rest along a frictionless ramp from height h = 3.2 m and then collides with stationary block 2, What is the value of distance d if the collision is elastic
A ball is thrown directly downward, by an initial speed of9.00 m/s, from a height of 29.0 m. After what time interval does the ball strike the ground?
A wire carries a steady current of 2.60 A. A straight section of the wire is 0.750 m long and lies along the y axis within a uniform magnetic field, = 1.40 T. what is the magnetic force on the section of wire
A hard disk in your computer spins at 5400 rpm. if this disk turns through 12 revolutions before coming to a stop, find the disks angular acceleration
dolphins communicate using sound waves underwater. suppose a dolphin emits a sound wave with frequency 660 hz while
The number of radioactive nuclei in a particular sample decreases to one-eighth of the original amount in 21 days. What is the half-life of the these nuclei
A 12.0 Volt battery remains connected to a parallel plate capacitor with a plate area of 0.314m^2 and a plate separation of 5.44 millimeter. Determine how much energy is stored on the capacitor
Suppose the initial speed of the proton in the figure is increased. Does the radius of each half-circular path segment increase, decrease, or stay the same?
Mary e is a 30 year old female who recently started having symptoms of muscle weakness. She says that she gets fatigued easily and has even had some numbness in her fingers. She is afraid to drive at night because she is having trouble “seeing cle..
An old mining tunnel disappears into a hillside. You would like to know how long the tunnel is, but it's too dangerous to go inside. how far is it to the end of the tunnel
A cord of length 1.0m is fixed at both ends. Its mass per unit length is 1.2g/m and the tension is 11N. What is the frequency of fundamental oscillation
A wall in a house contains a single window. The window consists of a single pane of glass whose area is 0.14 m2 and whose thickness is 8 millimeter. compute what is the percentage lost by the window
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