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A projectile is launched from the ground at t=0 with an initial launch speed of v0 m/s at and angle of degree above the horizontal. at t = 3 sec, the project its reaches its highest point. At t = 4 sec, the projectile lands on the top edge of edge of a cliff (marked with a). The distance among the point of launch and the base of the cliff is 60 m.
What is the speed of the projectile at the top of its trajectory?
Billy is running on level ground with a speed of 3.5 m/s. He attempts to jump a ditch that is 1.5 meters wide. determine the minimum vertical component of velocity when he jumps
35-mm camera has a single thin lens having a 50.0-mm focal length. A woman 1.7 m tall stands 10.0 m in front of the camera, (a) Show that the lens-film distance must be 50.3 mm.
you apply a potential difference of 4.5 volts between the ends of a wire that is 2.5 m in length and .654mm in radius. What length of nichrome wire will you use
A car weighing 1.06 multiply.gif 104 N is at rest on a 29.0° incline. Each wheel bears an equal part of the car's weight. Find the frictional force exerted by the road on each wheel
The current in a 90.0-mH inductor changes with time as I = 1.00t2 %u2013 6.00t (in SI units). At what time is the emf zero
Unpolarized light with an intensity of 910 W / m2 is incident on a polarizer with an unknown axis. What is the angle between the axes of the polarizers
A 2.62-g bullet, traveling at a speed of 417 m/s, strikes the wooden block of a ballistic pendulum, How high does the combination rise above its initial position
A coin is placed 32 cmfrom the center of a horizontal turntable, initially at rest. Theturntable then begins to rotate. When the speed of the coin is 100cm/s (rotating at a constant rate), the coin just begins to slip.The acceleration of gravity i..
A rocket fires two engines simultaneously. One produces a thrust of 760N directly forward while the other gives a thrust of 517N at an angle 39.6 above the forward direction
A car of mass M = 800kg travelling at 50km/hour enters a banked turn covered with ice. The road is banked at an angle 20degrees, and there is no friction between the road and the car's tires.
three identical point particles that have charge q are at the vertices of an equilateral triangle that is circumscribed
while the other terminal of the ammeter is connected to the other wire, ammeter shows that the current through the wire is 1 A. You then disconnect everything and travel to the other end of the telephone line, where you repeat the process and find ..
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