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A nonconducting sphere contains positive charge distributed uniformly throughout its volume. Which statements about the potential due to this sphere are true? All potentials are measured relative to infinity. (There may be more than one correct choice.) Choose all that apply. Choose all that apply. The potential at the center is the same as the potential at infinity. The potential at the center of the sphere is the same as the potential at the surface. The potential at the center of the sphere is zero. The potential at the surface is higher then the potential at the center. The potential is highest at the center of the sphere.
How much work is completed on the box by the applied force
A rectangular container measuring 22cm multiplied by 48cm multiplied by 72cm is filled with water. What is the mass of this volume of water in kilograms and grams.
Points A and B have electric potentials of 243 V and 129 V, respectively. When an electron released from rest at point A arrives at point C its kinetic energy is KA. When the electron is released from rest at point B, however, its kinetic energy when..
Water flows through a Venturi meter with a pipe diameter of 10.0 cm and a constriction diameter of 5.6 cm. The U-tube manometer is partially filled with mercury.
Compare these two ratings by determining the ratio of energy.
A student throws a set of keys vertically upward to her sister in a window 4.0 m above. The keys are caught 1.5 s later by the sister’s outstretched h&. Find initial speed were the keys thrown?
An object has a kinetic energy of 317 J and the momentum of magnitude 24.0 kg · m/s.
A heat engine has a maximum possible efficiency of 0.800. If it operates between a deep lake with a constant temperature of 287.0 k and a hot reservoir, what is the temperature of the hot reservoir?
A vertical scale on a spring balance reads from 0 to 160 N. The scale has a length of 12.5cm from the 0 to 160 N reading. A fish hanging from the bottom of spring oscillates vertically at the frequency of 2.30 Hz. ignoring the mass of the spring, wha..
Suppose a heat engine takes in 420 J of energy from a hot reservoir and performs 30 J of work in each cycle.
At t = 0 a grinding wheel has an angular velocity of 27.0 rad/s. It has a constant angular acceleration of 32.0 rad/s2 until a circuit breaker trips at t = 2s. From then on, it turns by 432 rad as it coasts to a stop at constant angular accelerati..
A 1700kg car travelling at a speed of 40m/s skids to the halt on wet concrete where f_k = 0.3. How long are the skid marks.
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