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A shotput thrower releases the shot with a release speedof 15m/s and a release angle of 42° above thehorizontal. The initial height that the thrower releases the shot is 2 m.In all the problems, neglect the effect of air resistance. What is the vertical velocity just before the shot lands on the ground?
Two vectors have magnitudes of 10m and 15 m. The angle between them when they are drawn with their tails at the same point is65?. What is the component of the longer vector along the line of the shorter?
How to find out the tension in the cable
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. What is the radius of a chamber
The speed of an alpha particle is determined to be 4.75x10^6 m/s. If all of its kinetic energy is acquired with passing during an electric potential, what is the magnitude of that potential?
A bungee cord is stretched between two poles with a force of 367N. The length of the cord is 33 meters and it has a mass of 6.1 kg. What is the velocity of a wave on this bungee cord?
An outside loudspeaker (considered a small source) emits sound waves with a power output of95W. Find the intensity level in decibels at that distance
A 189g block is launched by compressing a spring of constant k= 200 N/m a distance of 15cm. After launch, where does the block finally come to rest? Measure from the left end of the frictional zone
A gray kangaroo can bound across level ground with each jump carrying it 8.7 from the takeoff point. What is its maximum height above the ground
In a fusion reaction, two deuterium nuclei combine to form a helium nucleus, Find the initial velocity of the second deuterium nucleus
a tunnel leading straight through a hill makes tones at 135 hz and 165 hz especially loud due to standing waves.
A grinding wheel of radius 0.35 m rotating on a frictionless axle is brought to rest by applying a constant friction force tangential to its rim. The constant torque produced by this force is 75N · m. Find the magnitude of the friction force.
The two stars in a binary star system have masses 2.3x1030kg and 5.5x1030kg. They are separated by 1.5x1012m. What is the speed of the lightest star
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