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A meter stick is found to balance at the 49.7 centimeter mark when located on a fulcrum. When a 52.0 g mass is attached at the 9.0 centimeter mark, the fulcrum must be moved to the 39.2 centimeter mark for balance. Obtain what is the mass of the meter stick?
g
A weightlifter bench-presses a 130.0 kg barbell from his chest to a height equal the length of his arms 0.850 m. How many food calories does the weightlifter use if he does this lift 35 times
Two springs with spring constants k1 and k2are put together end-to-end. Let x1 be the amount by which the first spring is stretched relative to its equilibrium length, andsimilarly for x2. If the combined double spring is stretched by an amount b ..
Figure 19-26 shows two paths that may be taken by a gas from an initial point i to a final point f. Path 1 consists of an isothermal expansion (work is 60 J in magnitude), an adiabatic expansion (work is 38 J in magnitude), an isothermal compression ..
An air-track glider is attached to a spring. The glider is pulled to the right and released from rest at =0 . It then oscillates with a period of 1.50 and a maximum speed of 58.0 . A What is the amplitude of the oscillation? B What is the glider's po..
You are a professional frontier re-enactor who specializes in making lead shot. To do this you put 1.3 kg of ice into 1.3 kg of water, both at 0 C, into an insulated bucket.
q1. a 3.988x10-26 kg mass particle with negative -1.44x10-18 c charge is initially moving at 50ms parallel to a wire
A rectangle has an area of 33.66 cm2. When both the length and width of the rectangle are increased by 1.30 cm, find the length of the shorter of the two sides of the initial rectangle
The largest fusion bomb ever detonated (called the Tsar Bomba) was tested by the Soviet Union in 1961. How many kilograms of matter were converted to energy
The coefficient of static friction between the sole of an athletic shoe and the basketball court floor is 0.67. how large is the friction force exerted by Ken's shoes on the floor
uring July 1994 the comet Shoemaker-Levy 9 smashed into Jupiter in a spectacular fashion. determine what would have been the change (magnitude only) in Jupiter's orbital speed (not its final speed)
The angles with respect to the vertical are Q=10.5°, and T=23.5°. State if true, false, or can not tell. The mass of W can be less than that of Z. The charge on W can be positive and that on Z negative.
The turbine and associated rotating parts of a jet engine have a total moment of inertia of 30 kg m2. Find the work done by the net torque
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