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An object weighs 74.5 N in air. When it is suspended from a force scale and completely immersed in water the scale reads 23.6 N. Determine the density of the object. When the object is immersed in oil, the force scale reads 39.2 N. Calculate the density of the oil.
A transformer with a turns ratio (secondary/primary) of 1:14 is used to step down the voltage from a 120-V wall socket to be used in a battery recharging unit.What is the voltage supplied to the recharger?
A 5.00 μF and a 7.00 μF capacitor are connected in series, and this combination is connected across a 48 Volt potential difference. Determine the potential difference across first one
A 55.5 kg ice skater is moving at 3.99 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. What is the ratio of this force to her weight
A golfer hits a ball 210 m to the south for his first shot. His second shot is 80 m in the direction 25° south of west and his third shot is 30 m to the west. What is the net displacement of the ball
A force vector has a magnitude of 569 newtons and points at an angle 41o of below the positive x axis. What is (a) x scalar component and (b) y scalar component of the vector.
A very light spring of equilibrium length 10.0 cm is hung from the ceiling with a 0.40 kg block at its end. When the block settles, the spring is 15.0 cm long. The same block-and-spring system is then set up horizontally on the floor, with the fr..
The nucleus of a promethium-145 atomcontains 61 protons. Assume that thenucleus is a sphere with radius 5.69fm and with the charge of the protons uniformly spread through thesphere. At the nucleus surface, what are the magnitude and direction of the ..
A slit of width 0.48 mm isilluminated with light of wavelength 464 nm, Find the widths of the first and second maxima on each side of the central maximum
a solid wood door 1.04 m wide is hung in a metal door way at 0.0degc with a clearance of 2.2 mm on the side. if the
Compute the expected sea level rise for the projected 4°C mean global temperature rise anticipated by 2100. The average depth of the ocean is 3790 m, but you will not consider this whole depth to be expanding. Instead you will only consider the ex..
What is the rms current in a series RC circuit if R = 5.0k%u03A9 , C = 0.90%u03BCF , and the rms applied voltage is 130V at 69Hz
After a plant or animal dies, its 14C content decreases with a half-life of 5730 years. what is the age of the ancient site
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