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An eyepiece of 3.0- cm focal length and an objective of 0.29-cm focal length are used in a standard microscope.
What power should be marked on the eyepeice?The objective?What is the overall magnification of the microscope?
What is the magnitude of the force that each sphere experiences, and is the force attractive or repulsive?(b) The spheres are brought into contact and then separated to adistance of 2.10 cm. Determine themagnitude of the force that each sphere now ..
A particle with a charge of ?1.0 ?C and a mass of 2.4 10-6 kg is released from rest at point A and accelerates toward point B, What is the potential difference VB ? VA between A and B
A 542 Hz sound wave travels through a substance. The wavelength of the sound wave is measured to be 1.9 meters. What is the speed of sound in the substance
Four point charges have the same magnitude of 2.4 X 10^-12 C and are fixed to the corners of a square that is 4.0 cm on a side. Determine the magnitude of the net electric field
Coffee filters behave like small parachutes, with a drag force that is proportional to the velocity squared, Fdrag = Kv2. Find the time for the combined filters to reach the ground
How would you describe the discoveries of Benjamin franklin, Robert millikan, cgarles-augastin de coulomb and Ernest ruthford
A skateboarder, starting from rest, rolls down a 13.7-m ramp. When she arrives at the bottom of the ramp her speed is 6.28 m/s. (a) Determine the magnitude of her acceleration, assumed to be constant. (b) If the ramp is inclined at 33.3 ° with respec..
A cylinder contains a mixture of helium and argon gas in equilibrium at a temperature of 145°C. What is the rms speed of each type of molecule
A typical wall outlet voltage is 120 volts in the United States. calculate the number of turns on the secondary coil of the adapter transformer
Only two forces act on an object (mass=3.76 kg), as in the drawing. Find the direction (relative to the x axis) of the acceleration of the object
A light spring with a force constant of 13N/m is connected to a wall and a 1.2-kg toy bulldozer. When the electric motor in the bulldozer is turned on, What is the numerical value of this coefficient of friction
You pull downward with a force of 30N on a rope that passes over a disk-shaped pulley of mass 1.2kg and radius 0.075m, Find the linear acceleration of the 0.69kg mass.
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