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Due to a temperature difference ?T, heat is conducted through a brass plate that is 0.027 m thick. The plate is then replaced by a stainless steel plate that has the same temperature difference and cross-sectional area. How thick should the steel plate be so that the same amount of heat per second is conducted through it?
The element antimony has an atomic weight of 121.757 amu and only two naturally occuring isotopes. what is the mass of the other isotope
A sliding bar has a length of .547m and moves at 2.34m/s in a magnetic field of magnitude .204T. The resistance in the circuit is .698ohms. find the new speed of the rod
q1. before starting this problem review conceptual. the force vector a has the magnitude of 75.0 newtons n and points
At rest, a car's horn sounds at a frequency of 480 Hz. The horn is sounded while the car is moving down the street. A bicyclist moving in the same direction with one-third the car's speed hears a frequency of 470 Hz. What is the speed of the car?
A visitor to a lighthouse wishes to determine the height of the tower. She ties a spool of thread to a small rock to make a simple pendulum, What is the height of the tower
Particle A has a mass of 5.5 g, particle B has a mass of 1.3 g. Particle A is located at the origin, particle B at the point (x, y) = (25 cm, 0). What is the location of the center of mass
A novice skier, starting from rest, slides down a frictionless 41.0 incline whose vertical height is 230.How fast is she going when she reaches the bottom.
A rotten pumpkin of mass 2.44 kg is dropped from a height of 2-m above the ground. Ignore air friction. Let the positive y-axis point down. How much momentum will the pumpkin have
Water is being sprayed from a nozzle at the end of a garden hose of diameter 2.0 cm. what is the speed of the water inside the hose
Use the force or spring constant from part (a), compute the potential energy stored in the spring when the spring is displaced 2.40 cm
A uniform thin spherical shell has a raduis of 2.9 m and mass of 460kg and its center is located at the origin of a coordinate system. find the gravitional force of attraction between the two shells
The ratio of the average acceleration values is a1/a2 = 1.24. Find out the velocity of the car at the end of the initial ten-second interval.
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