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During a flash flood, water rushes over a road as shown in Fig. P9.66 with a speed of 12 mph. Estimate the maximum water depth, h, that would allow a car to pass without being swept away. List all assumptions and show all calculations.
An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. What is the tire pressure in pascals
Derive an equation for T as a function of k and m. If you plot a graph of T^2 versus m, what combination of variables represents the slope
A 35.0g bullet moving at 475 m/s strikes a 2.5kg bag of flourthat is on ice, at rest. The bullet passes through the bag, andexits it at 275 m/s. How fast is the bag moving when the bulletexits?
A totally absorbing detector of area A = 10 cm2 lies perpendicularly to the direction of propagation. How much energy is absorbed by the detector in one second?
A 1.7 kg rolling hoop with a radius of 9 cm rolls without slipping. If the angular speed of the hoop is 2.46 rad/s , compute rotational kinetic energy of the rolling hoop
Compare the correct value of the radiation resistance of the half-wave dipole with the incorrect value that would result from using the expression for the radiation resistance of the Hertzian dipole.
If for a given initial velocity, the maximum range is at a projection angle of 45°, then there must be equal ranges for angles above and below this. Did your experimental data support this? Explain: As an example look at the range for 30 and 60 degre..
A 3.0 kg particle with velocity v = (5.0 m/s) i - (6.0 m/s)j is at x = 3.0 m, y = 8.0 m. It is pulled by a 7.0 N force in the negative x direction. What torque about the origin acts on the particle
What is the magnitude of the acceleration of the system - What is the tension T in the left-hand cable slanted at an angle - Calculate the tension in the cord.
A person on earth notices a rocket approaching from the right at a speed of 0.75c and another rocket approaching from the left at 0.60c. What is the relative speed between the two rockets, as measured by a passenger on one of them? ......c
The horizontal surface on which the block slides is frictionless. Determine how fast is the block moving at the instant the spring is compressed 15 centimeter
A 100 W light bulb has a resistance of about 12 ohms when cold (20 degrees C) and 140 ohms when hot. Estimate the temperature of the filament
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