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While exploring a cave, a spelunker starts at the entrance and moves the following distances: 75.0 m north, 250 m east, 170 m at an angle 30.0° north of east, and 150 m south.
Discover the resultant displacement from the cave entrance and the direction it is in (degrees)
A galvanometer with a full-scale sensitivity of 800uA and a coil resistance of 54 ohms is to be used to build an ammeter designed to read 6.0A at full scale
hen there's no torque applied, it slows down from 1800 rpm to rest in 57.0 s. Now we want to make it come to rest from 1200 rpm in 4.00 s by applying a constant torque on it. What is the minimum torque applied
a sprinter in a 100-m race accelerates uniformly for the first 35 m and then runs with constant velocity. if the
A thin film of oil (n=1.24) is laying on a flat piece of glass (n=1.83). When viewed through air normal to the oil film, What is the minimum thickness of the oil film
Let’s do some electrochemistry. A process for electroplating an object with gold is as follows. The object to be electroplated is immersed in a bath of gold chloride (AuCl4-) and connected to the negative terminal of a battery.
A toroidal solenoid with mean radius r and cross-sectional area A is wound uniformly with N1 turns. A second toroidal solenoid with N2 turns is wound uniformly on top of the first, so that the two solenoids have the similar cross-sectional area and m..
A projectile is fired from the surface of the Earth with a speed of 200 meters per second at an angle of 30 degress above the horizantal. If the ground is level, illustrate what is the maximum height reached by the projectile?
A puck of mass 80.0 g and radius 4.30 cm slides along an air table at a speed of 1.50 m/s, What is the Angular Speed about the center of mass
mall candle is 37cm from a concave mirror having a radius of curvature of 22cm. What is the focal length of the mirror? Follow the sign conventions
Three equal charges of magnitude +4.00 uC are placed at the corners of an equilateral triangle of side 2 cm. what is the electric potential energy of the system
a spacecraft is traveling with a velocity of v0x 6570 ms along the x direction. two engines are turned on for a time
A compact disk spins with angular velocity 44.7rad/s . The player is turned off, and 2.50s later the CD has stopped. Find its average angular velocity
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