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An object undergoes simple harmonic motion in the x direction. Its position is given by x=A sin(0.497 t + 4.32) where the argument is in radians when t is in seconds and A= 3.98 m. What is the frequency of the object's motion in hertz (Hz)?
you are standing on a platform and you throw a 5kg ball with a speed of 10 m/s at an angle of 30 degrees with respect to the horizontal. find the horizontal distance the bal travels before it hits the ground
A 0.283-m-thick sheet of ice covers a lake. The air temperature at the ice surface is -17.7 °C. calculate the number of millimeters by which the ice thickens
It takes an elevator 3.4 minutes to raise a vehicle with a mass of 366 kg from the floor to a height of 7 meters. What size (power) motor (in watts) does it take to do the job
A body is dropped from rest and falls freely. Determine the position and speed of the body after 1.0, 2.0, 3.0 and 4.0 s have elapsed
In the field of psychology, what is meant by the term “catharsis”? According to Joseph Bruer, Illustrate what effect did “catharsis” have on the mental functioning of someone with a “troubled mind”? Why?
a laser positioned on a ship is used to communicate with a small two man research submarine resting on the bottom of a lake. How far is the submarine from the side of the ship
What is acceleration due to gravity
Two generators use the same magnetic field and operate at the same frequency. Find the coil radius r of this other generator
A vertical solid-steel post 26.0 cm in diameter and 2.53 m long is required to support a load of 8200 kg. What is the strain in the post and the change in the posts' length when the load is applied
A 2300 kg truck traveling north at 39 km/h turns east and accelerates to 57 km/h. What is the change in the truck's kinetic energy
What is the energy released in this nuclear reaction 47Be + 01n ? 37Li + 11H
A student sitting on a frictionless rotating stool has rotational inertia 0.92kg?m2 about a vertical axis through her center of mass, Ignoring her arm mass, what's her new rotational velocity
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