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1-) A spring with spring constant 18.5N/m hangs from the ceiling. A 570g ball is attached to the spring and allowed to come to rest. It is then pulled down 7.00cm and released. What is the time constant if the ball's amplitude has decreased to 3.00cm after 57.0 oscillations?
2-) A 56.0kg cheerleader uses an oil-filled hydraulic lift to hold four 110kg football players at a height of 1.30m. If her piston is 19.0cm in diameter, what is the diameter of the football players' piston?
3-) A 0.500m -diameter vat of liquid is 2.20m deep. The pressure at the bottom of the vat is 1.30atm. What is the mass of the liquid in the vat?
A charge +3.9 ?C is placed at the center of the hollow spherical conductor with the inner radius 3.1 cm and outer radius 5.5 cm, What is the total charge on interior and exterior surface
pipe open at one end only has a fundamental frequency of 237 Hz. A second pipe, initially identical to the first pipe, is shortened by cutting off a portion of the open end. Currently, when both pipes vibrate at their fundamental frequencies, a beat ..
A narrow beam of light with wavelengths from 450 nm to 700 nm is incident perpendicular to one face of a 32.00, What is the angular spread of the beam after passing through the prism
A 46kg box is being pushed a distance of 7 m across the floor by the force vector P whose magnitude is 144N. The force vector P is parallel to the displacement of the box.
A car starts from rest and then accelerates uniformly to a linear speed of 16 m/s in 42 s. If the tires have a radius of 27 cm, what are the following.
Cooling water from a river flows through the condenser (the low-temperature heat exchanger) at the rate of 1.2×108L/h (?30 million gallons per hour). If the river water enters the condenser at 18?C, what is its exit temperature
A thin rod consists of two parts joined together. One third of it is silver and two-thirds is gold. The temperature decreases by 24C°.
After the collisions the clay-rod system has an angular velocity ω about the pivot. With respect to the pivot point O, elucidate the magnitude of the initial angular momen-tum Li of the clay-rod system?
A cyclist starts from rest and coasts down a 4.0?hill. The mass of the cyclist plus bicycle is 85 kg. Ignore air resistance and friction. How fast is the cyclist going
Consider a thin rod of mass 3.7 kg, length 1.8m and uniform density. The rod is pivoted at one end on a frictionless horizontal pin
Reading glasses of what power are needed for a person whose near point is 110cm, so that he can read a computer screen at 52cm? suppose a lens-eye distance of 2cm.
Density of Aluminium is 2.7g/cm3 or 2.7g/ml. How heavy (in grams) would be the coke can if instead of soda it would be filled in with aluminium? The volume of a soda can is 303 ml.
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