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An elevator cab has a mass of 4500 kg and can carry a maximum load of 1800 kg. If the cab is moving upward at full load at 3.80 m/s, what power is required of the force moving the cab to maintain that speed?
The power (in watts) dissipated by a resistor is given by P = IV. The resistors used in this experiment are 1 watt resistances i.e. they are capable of dissipating a maximum of 1 watt without overheating. What is the maximum voltage that can be put ..
What is the greatest possible rate of energy transfer by radiation from a metal cube 2.4cm on a side that is at 720 degrees Celsius
question from amperes law we found that the magnitude of the magnetic field a distance r from a current-carrying wire
A charge of -4.34C is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass (radius = 0.122 m). The charges on the circle are -5.56C at the position due north and +6.30C at the position due east.
An 81 kg running back moving at 4.0 m/s makes a perfectly inelastic collision with a 105 kg linebacker who is initially at rest. What is the speed of the players just after their collision
an object moves with constant acceleration 3.75 ms2 and over a time interval reaches a final velocity of 13.6 ms.a if
question a railroad car of mass 2.52 x 104 kg is moving with a speed of3.95ms. it collides and couples with three other
Two charges Q1=+6mC and Q2=+4mC are separated horizontally on a straight line, find the magnitude of the electric force between these charges
Two UFOs collide over Roswell, New Mexico. Before the collision, UFO A (mass 10,000.00kg) has a velocity of +100.00m/s, What is the linear momentum vector of UFO A before the collision
A flashlight on the bottom of a 4.15 m deep swimming pool sends a ray upward andat an angle so that the ray strikes the surface of the water1.80 m from the point directly abovethe flashlight
any two conductors can be considered to be a capacitor. suppose one conductor is a sphere of radius a and the other is
You are an engineer in charge of designing a new generation of elevators for a prospective upgrade to the Empire State Building. Before the state legislature votes on funding for the project, they would like you to prepare a report on the benefits..
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