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At each point on the surface of the cube shown in Fig. 23-27, the electric field is parallel to the z axis. The length of each edge of the cube is 3.2 m. On the top face of the cube the electric field is in the negative z direction and has a magnitude of 38 N/C magnitude. On the bottom face of the cube the field is in the positive z direction and has a magnitude of 23 N/C. Determine the net charge (in nC) contained within the cube.
Two objects of equal mass collide on a horizontal frictionless surface. What is the speed of the composite body (A + B) after the collision
A teenager pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 12 rpm in 9.5 s. What force is required at the edge
A cooling fan is turned off when it is running at 800rev/min . It turns 900 revolutions before it comes to a stop, What was the fan's angular acceleration, assumed constant
question1a soccer player kicks a rock horizontally off of a 40.0m high cliff into a pool of water. if he hears sound of
A 1460-kg submarine rises straight up towards the surface. Seawater exerts both an upward buoyant force of 16300 N on the submarine, as well as a downward resistive force of 1090 N. What is the submarine's acceleration?
Calculate the eccentricity, e, of a planet's orbit around a central star if the ratio of its gravitational potential energies at the aphelion and at the perihelion is ? = 0.175
The propulsion system on a 1500kg rocket car fires for 15 seconds and the propulsion force is equal to F= x(80-x). What is the average speed for the entire two stage event
If the pressure of the 1.2-cm3 volume is reduced to 3.0 × 10?11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container
wo converging lenses are placed 60.0 cm apart. The intial object is placed 28.7 cm in front of the first lens. what is the total linear magnification for the system
A vertical solid steel post of diameter d = 23.1cm and length L = 2.36m is required to support a load of mass m = 8260kg. What is the stress in the post
An ideal refrigerator does 140 J of work to remove 585 J of heat from its cold compartment during each cycle. How much heat per cycle is exhausted to the kitchen
One of your friends pulls on a rope with 3 units of force and other pulls on a second rope with 5 units of force, How hard and what direction must you pull
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