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Question: A two-axle steam roller with axles 10 ft apart crosses a 25-ft simply supported beam bridge. If the load on each axle is 16 000 lb, determine the position of the wheels to produce
(a) the maximum shear load, and
(b) the maximum bending moment. Calculate the value and location of Vmax and Mmax.
A 26.2-kg dog is running northward at 2.21m/s, while a 5.30-kg cat is running eastward at 2.83 m/s. Their 67.2-kg owner has the similar momentum as the two pets taken together. Find the magnitude and direction of the owner's velocity.
If the current through the wire is 2.0 A , how long on average does it take an electron to travel from the switch at the pedal to one of the brake lights? The number density of free electrons in copper is n = 8.4 x 1028 electrons/m3. Suppose that ..
It takes 20 turns to drive a screw completely into a block of wood. Because the friction force among the wood and the screw is proportional to the contact area among the wood and screw, the torque required for turning the screw increases linearly by ..
An ambulance emits a 400 Hz sound while standing at the fire station. A passenger in a car detects a frequency of 420 Hz while approaching the fire station. What is the speed of the passenger's car?
How do defibrillators work? What care must the person administering the treatment take?
A car, initially traveling with a uniform velocity, accelerates at a rate of 1.0 m/s^2 for a period of 12 seconds. If the car traveled 190 m during this 12 second period, what was the velocity of the car when it started to accelerate?
Puffy cumulus clouds, which are made of water droplets, occur at lower altitudes in the atmosphere. Find the altitude y (measured from sea level) above which wispy cirrus clouds can occur.
A circular spacecraft of diameter 300.0 m passes earth moving eastward at 0.9900c. What are the dimensions of the spacecraft according to the earthbound observer
A negative charge of -2.0 10-4 C and a positive charge of 9.5 10-4 C are separated by 0.24 m. What is the force between the two charges
When will the object reach its maximum height?
Capacitors C1 = 6.03 ?F and C2 = 2.45 ?F are charged as a parallel combination across a 298 V battery, Calculate the resulting charge on capacitor C1 and C2
question a 10 kg block of ice has a temperature of -8degc. the pressure is one atmosphere. the block absorbs 4.20 106 j
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