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Standing on the surface of a small spherical moon whose radius is 6.81·104 m and whose mass is 7.07·1018 kg, an astronaut throws a rock of mass 2.41 kg straight upward with an initial speed of 33.3 m/s. (This moon is too small to have an atmosphere.) What maximum height above the surface of the moon will the rock reach?
A 120-V motor has mechanical power output of 2.50 hp. It is 90.0% efficient in converting power that it takes in by electrical transmission into mechanical power, Find the current in the motor
A generator uses a coil that has 330 turns and a 0.34-T magnetic field. determine the length of the wire from which the coil is made
A ball is moved from the origion to (1i + 4j) m, using a force (2i + 6j) N. Calculate the work done by the force
A particle has a charge of +2.3 ?C and moves from point A to point B, a distance of 0.13 m. The particle experiences a constant electric force, and its motion is along the line of action of the force.
an explorer is caught in a whiteout in which the snowfall is so thick that the ground cannot be distinguished from the
question1a uniform electric field of magnitude 642 nc exists between two parallel plates that are 4.06 cm apart. a
A pilot is flying an airplane that is used for aeriel surverying to make a map of ground detail of New Jersey. If the scale of the map is to be 1:50,000 and the camera has focal length of 6in
An electric blanket is connected to a 120-V outlet and consumes 110 W of power. What is the resistance of the heater wire in the blanket
State the maximum height in terms of a, t_1, and/or g. Note that in this problem, g is a positive number equal to the magnitude of the acceleration due to gravity.
A 110-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 370N. What is the final speed of the crate
As a bar magnet moves toward a 150-turn coil, the magnetic field (which is perpendicular to the plane of the coil) changes from 0.25 T to 0.53 T in 0.3 s. find the magnitude of the induced current in the coil
In the circuit shown in the figure, the capacitors are all initially uncharged and the battery has no appreciable internal resistance. find the maximum potential difference across each capacitor
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