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A shell is launched at 140m/s 56.0 degrees above the horizontal. When it has reached its highest point, it launches a projectile at a velocity of 110m/s 35.0 degrees above the horizontal relative to the shell.
a) find the maximum height about the ground that the projectile reaches.
b) Find its distance from the place where the shell was fired to its landing place when it eventually falls back to the ground.
An electron traveling at v = 1.20 x 10^5 m/s passes from (2.00 m, 1.00 m, 3.00m) to (7.00 m, 3.00 m, 1.00 m), What is the force that electron experiences the instant
Three resistors having resistances of 1.50{\rm \Omega} , 2.30{\rm \Omega}, and 4.70{\rm \Omega} are connected in parallel to a 29.0{\rm V}battery that has negligible internal resistance
A uniform plank of length 2m and mass 29kg is supported by three ropes, as indicated by the blue vectors. Find the tension in each rope when a 690N person is 0.500m from the left end.
The 1400-turn coil in a dc motor has an area per turn of 1.1 multiply.gif 10-2 m2. What is the current in the coil
q1. for the beam given in the figure below assume that the material is astm-a514 steel with elastic modulus and e
Cars A and B are traveling around the circular race track. At the instant shown, A has a speed of 78ft/s, Determine the relative acceleration of car A with respect to car B at this instant
What is amplitude of the subsequent oscillations
a 1.0 kg wheel of radius 0.5 m is rotating at a rate of 40 rad/s about an axis through its center of mass. through what angle did the wheel turn while it is being stopped
the amusement park ride is going to rotate passengers around a vertical axis such that the supporting cables make a theta= 30 degree angle which vertical. Find the needed rate of rotation of the ride
string under a tension of 50.5 N is used to whirl a rock in a horizontal circle of radius 2.55 m at a speed of 20.3 m/s on a frictionless surface, What is the breaking strength, in newtons, of the string
For a record playing at 78 rpm, find the frequency and the angular velocity. Find the Frequency and angular velocity
Two objects are maintained at constant temperatures, one hot and one cold. Two identical bars can be attached end to end, as in part a of drawing, or one on top of the other, as in part b. When either of these arrangements is placed between the hot a..
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