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A particle that carries a net charge of -41.8 ?C is held in a region of constant, uniform electric field. The electric field vector is oriented 25.2° clockwise from the vertical axis. If the magnitude of the electric field is 6.82 N/C, how much work is done by the electric field as the particle is made to move a distance of d = 0.956 m straight up?
A 0.49 kg object connected to alight spring with a force constant of 24.8 N/m oscillates on a frictionless horizontalsurface. Determine the maximum speed of the object
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 13.0 m/s at an angle 52.0 degrees; with respect to the horizontal. Sarah catches the ball 1.5 meters above the gr..
a. calculate the rate of heat conduction through house walls that are 13.0cm thick and that have an average thermal
A cockroach of mass m lies on the rim of a uniform disk of mass 3 m that can rotate freely about its center like a merry-go-round. find the angular velocity of the cockroach-disk system
A source emits sound uniformly in all directions. A radialline is drawn from this source. On this line, determine the radial positions of two points, 1.28 m apart, such that the intensity level at one point is 2.46 dB greater than that at the other.
Find the frictional torque, which is assumed to be constant. Find the moment of inertia of the wheel.
A block with mass m = 4 kg is sitting on the ground and not moving. The acceleration due to gravity is g = 9.81 m/s2. Please answer the following questions.
three resistors of 75, 50 , 100 ohms are connected to a 9 volt source. determine the power dissipated by the circuit
A space vehicle is traveling at 4450 km/h relative to the Earth, What is the speed (km/h) of the command module relative to Earth after the separation
Two people are pulling a boat through the water as in the figure below. Each exerts a force of 600 N directed at a ? = 45.0° angle relative to the forward motion of the boat
A pendulum is made out of a (251.3 +/- 0.1) g mass and a string that is (1.3 +/- 0.005) m long. compute the centripetal force acting on the mass
An open container holds ice of mass 0.530 kg at a temperature of -15.7 Celsius . The mass of the container can be ignored. Heat is supplied to the container at the constant rate of 810J/minute .
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