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Q1. A person whose eyes are H = 1.64 m above the floor stands L = 2.3 m in front of a vertical plane mirror whose bottom edge is 38 cm above the floor. What is the horizontal distance x to the base of the wall supporting the mirror of the nearest point on the floor that can be seen reflected in the mirror?
Q2. A 39.0- body is moving in the direction of the positive x axis with a speed of 361 when, owing to an internal explosion, it breaks into three pieces. One part, who's mass is 7.5, moves away from the point of explosion with a speed of 475 along the positive y axis. A second fragment, who's mass is 3.5, moves away from the point of explosion with a speed of 485 along the negative x axis. What is the speed of the third fragment? Overlook effects because of gravity.
A hydrogen atom is in its first excited state (n = 2). Using the Bohr theory of the atom, compute the linear momentum of the electron
A pair of slits, separated by 0.170 mm, is illuminated by light having a wavelength of ? = 569 nm. What is the path difference for the two slits at the location y
A 2 meter wire carrying 1 A of current is at a 90 degree angle to a magnetic field. If the current feels a force of 1 N from the magnetic field, what is the strength of the field
In the rainy season, the amazon flows fast and runs deep. In one location, the river is 23m deep and moves at a speed of 4.0m/s toward the east. what is the potential (magnitude and sign) at the surface
Why is differentiation necessary to build a formal organizational structure? Is differentiation limited to large organizations? How is the concept of span of control related to both integration and differentiation?
The density of an ideal gas is found to vary with temperature according to the equation d=PM/RT, where P and M were held constant in this case.
At time t=0 a grinding wheel has an angular velocity of 27.0rad/s, At what time does the wheel stop
A torque of 2.2 N.m is applied to a spherical shell of radius 0.25 m. what is the mass of the disk
A 7.00 kg bowling ball moves at 2.30m/s. How fast must a 2.60g Ping-Pong ball move so that the two balls have the same kinetic energy.
A cylindrical aluminum pipe of length 1.43 m has an inner radius of 2.00 10-3 m and an outer radius of 3.00 10-3 m. What is the resistance of this unit
An electron and a proton are each placed at rest in an electric ?eld of 334 N/C. What is the velocity of the electron 46.2 ns after being released
A damped mass-spring system oscillates at 275-Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 3.20cm and the energy of the oscillating system is then 32 J.
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