Problem based on rotational kinetic energy
If a 0.379 m radius hollow ball has a rotational kinetic energy of 2.924 J while spinning at 5.7 rad/seg, what is its mass?
A) 14.28 kg
B) 2.5 kg
C) 1.88 kg
D) 5.34 kg
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If it takes the ball 22.0 to stop once it is in contact with the catcher's glove, what average force did the ball exert on the catcher?
Depreciation on factory equipment. (b) Depreciation on office equipment. (c) Depreciation on factory building. (d) Advertising manager's salary.
Question: A highway curve with radius 850 is to be banked so that a car traveling 52.0 will not skid sideways even in the absence of friction. At what angle should the curve be banked?
The City of Bedford is studying a 600-acre site on Route 356 for a new landfill. The startup cost has been calculated as follows:Purchase cost: $450 per acre Site preparation.
Collin and Christine are married and file joint. Their dependent son, Trevor, is a full-time college student at a qualified educational institution. This year Collin and Christine borrowed $30,000.
A 0.0587g sample of gas with an empirical formula CHF2 is placed in 154 ml flask. It has a pressure of 46.3 mmHg and 24.6 C (degrees). what is the molecular formula of the compound.
In an IRS publication, the department states, "Travel, entertainment and gift expenses account for just part of the overstated adjustments, deductions, exemptions, and credits that add up to $30 billion per year in unpaid taxes.
The auto repair shop of Empire Motor Sales uses standards to control labor time and labor cost in the shop. The standard time for a motor tune-up is 3.5 hours
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