How many rotations per second must each wheel spin
To move a differential drive robot forward at 1 ft/sec, how fast must each wheel move? If the radius of each wheel is 1 foot, how many rotations per second must each wheel spin?
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Determine the height of the hill above the valley floor. Treat the positive direction as to the right. Solve symbolically if there had been enough info given to to determine the initial velocity of the car AFTER it was hit by the truck.
A 1050 hot-rolled steel of diameter 300mm has an ultimate tensile strength of S_ut=724MPa. Determine the un-modified endurance limit of the steel member from a rotating beam test.
Two charges attract each other with a force of 2.5 N. What will be the force if the distance between them is reduced to one-ninth of its original value?
Calculate the percentage volume change that would occur if a material were to be transformed from FCC to BCC. Assume that atomic diameters are fixed and the atoms pack together as rigid sphere.
A mass m at the end of a spring vibrates with a frequency of 0.92 Hz. When an additional 609 g mass is added to m, the frequency is 0.58 Hz. What is the value of m?
If the cylinder contains 4.6 lbm of refrigerant, find the final temperature (in oF) and the work done (in Btu). This is a closed system.
The combustion of methane gas (CH4) with air leads to the following volumetric analysis of the product gases on a dry basis: 9.52 % CO2, 0.28 % CO and 3.57 % O2. Determine The moles of air used per mole of fuel and the percent excess air used.
A 0.45 kg mass vibrates according to the equation x = 0.49 cos 8.45t, where x is in meters, and t is in seconds. (a) Determine the amplitude. (b) Determine the frequency. (c) Determine the total energy.
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