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An airplane's propellers exert a force on the plane of 2500N to the east. Wind resistance of 500N acts to the west. If the weight of the plane is 40,000N, what is the acceleration of the plane?
Consider the circuit in the diagram, with six identical bulbs, three switches, and a battery. For the state with switches 2 and 3 closed, 1 open, rank the bulbs in the order from brightest to dimmest.
Which is in contact with the stove?
A long piece of wire with a mass of 0.100 kg and total length of 4.00 m is used to make a suare coil with a side of 0.100 m. Find the torque acting on the coil due to the magnetic force at equilibrium
A square, single-turn coil 0.180 m on a side is placed with its plane perpendicular to a constant magnetic field. An emf of 18.0 mV is induced in the winding when the area of the coil decreases at a rate of 0.0700 m 2/s. Compute the magnitude of the..
When a light bulb is connected across the terminals of abattery, the battery delivers 20.0 W of power to the bulb. Avoltage of 11.6 V exists between the terminals of the battery,which has an internal resistance of 0.500. What is the emf of the batter..
A light source emits two spectral lines: one at 473 nm and one at 722 nm. what is the distance between the two spectral lines in the first order spectrum
You have two identical lenses, each with a focal length of 16 cm, and you have a 13 mm tall object which you would like to image. Where will the final image be located and what is its height
A box slides down a 25° ramp with an acceleration of 1.070m/s2. Resolve the coefficient of kinetic friction between box and ramp.
The magnitude of the tidal force exerted on an object of mass m and length a is approximately 4GmMa/r3. find the tidal force exerted on your body by the black hole
What will its rotational period be assuming the same mass for both, and they are both uniformly distributed spherical masses?
A 1.80-kg monkey wrench is pivoted 0.250 m from its center ofmass and allowed to swing as a physical pendulum. What is the moment of inertia of the wrench about an axisthrough the pivot
On an essentially frictionless horizontal ice-skating rink, a skater moving at 2.6 m/s encounters a rough patch that reduces her speed by 48 % to a friction force that is 20 % of her weight
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