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An object is thrown downwardwith an initial speed of 15 m/s from a height of 83 mabove the ground. At the same instant,a second object is propelled verticallyfrom ground level with a speed of 24m/s. The acceleration of gravity is9.8m/s2 .
At what height above the ground will the two objects pass each other?
A block of mass m is attached to a spring (spring constant k)which is attached to a wall, find the amplitude of the resulting simple harmonic motion?
The drawing shows a mercury barometer. Consider two barometers, one using mercury and another using an unknown liquid. assume that the pressure above the liquid in each tube is negligible. The height of the unknown liquid is 18.3 times greater tha..
1 although all atoms have moving electric charges not all materials are magnetic for example copper or wood are not
A student sits at rest on a piano stool that can rotate without friction. The moment of intertia of the student-stool system is 4.1 kg*m^2. What is the resulting angular speed of the student
A pipe is open at both ends. Its length is 22.81 cm. If I excite standing waves in the pipe by blowing air over one of its ends, Find the distance between the antinodes at the two ends of the pipe
A 3.6 m long steel wire has a cross-section area of 0.047 cm2. Its proportional limit has a value of 0.0015 times its Young's modulus, What is the maximum weight that the wire can support
The plate seperation of a parallel plate capacitor is 1 cm. The potential on the negatively charged plate of the capacitor is zero. What is the strength of the electric field in the capacitor
An electron in a television picture tube has a classical kinetic energy of 60 keV, which is the kinetic energy that Newton would calculate using the measured speed, What is the actual kinetic energy of the electron
A helium nucleus (charge +2e) moves through a potential difference V = ?0.40 kV. Its initial kinetic energy is 3.40 10-16 J. What is its final kinetic energy
A disk of radius 10 cm, initially at rest, begins rotating about its axis with a constant angular acceleration of 8.2 rad/s2. compute the angular velocity of the disk
An image of the moon is created by reflection off of a concave mirror at a point 6.0cm from the mirror. where will the image be
In figure, a ball isthrown up onto a roof, landing some time later at heighth = 20.0 m above and d = 30.0 m horizontally from the release point.The ball's path just before landing is angled at θ =60.0o with the horizontal roof.
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