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As is shown below, a bus drives on a steeply banked curve at the highest speed such that it does not skid. The free-body diagram, also shown, was prepared by a student who is analyzing the forces. The free-body diagram includes the weight of the bus, the total normal force exerted on the bus by the road, the friction force, and the centripetal force. Which, if any, of these forces should not appear or is incorrectly represented in the free-body diagram?
A lamp which is 9.0 cm tall is in front of a concave mirror which has a focal length of 53.0 cm. (a) How tall is the lamp's image if the lamp is a distance of 26.5 cm from the mirror (include sign if negative)
A transformer has 120 volts and 100 turns in the primary. The secondary has 500 turns and 600 volts. If the resistance of the secondary side is 150 ohms, find the secondary current
A concave mirror has a focal length of 33.8 cm. The distance between an object and its image is 49.7 cm. Find (a) the object and (b) the image distance assuming that the object lies beyond the center of curvature.
A liquid when poured into a graduated cylinder is found to weigh 8 N when occupying a volume of 500 ml (milliliters). Determine its specific weight, density, and specific gravity
The charges and coordinates of two point charges located in the xy plane are: q1 = +4.0 ? 10-6 C, x = +3.50 cm, y = +0.600 cm; and q2 = -5.00.
The hydrogen spectrum has a red line at 656 nm and a violet line at 434 nm. What angular separation between two spectral lines obtained with a diffraction grating that has 4920 lines/cm? (Assume that the light is incident normally on the grating.) fi..
A small block of mass 20.0 grams is moving to the right on a horizontal frictionless surface with a speed of 0.68 m/s. What is the speed of the 40.0 gram block after the collision
The coefficient of friction depends upon the properties of the surfaces in contact. What factors do you believe determine the coefficient of friction?
When a 5.00 kilogram object is hung vertically on a certain light spring that obeys Hooke's law, the spring stretches 2.80 centimeter. If the 5.00 kilogram object is removed, find how far will the spring stretch if a 1.50 kilogram block is hung on i..
When a 45.0-V emf device is placed across two resistors in series, a current of 15.0 A is flowing in each of the resistors. When the same emf device is placed across the same two resistors in parallel,
Define an appropriate Command Feedforward Structure to improve Command Tracking. Derive velocity and acceleration commands from the position command.
Determine the phase and group velocities for a monatomic lattice. Plot the velocities versus the wave vector k and give a brief discussion of their significance.
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