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A sample of an unknown material appears to weigh 255 N in air and 195 N when immersed in alcohol of specific gravity 0.700.
(a) What is the volume of the material?
m3
(b) What is the density of the material?
kg/m3
The manometer tube has an internal diameter of 0.5 cm and it is initially filled with water. Exactly 2 cm3 of an unknown liquid is then poured into one leg of the manometer, and a displacement of 5 cm between the surfaces is measured as shown. Fin..
If the plant produces electric energy at the rate of 1.3GW , how much exhaust heat is discharged per hour
A 7.89-kg fish swimming 4.23 m/s swallows an absent-minded 5.16-kg fish swimming toward it at a velocity that brings both fish to a halt immediately after lunch
A block with mass m = 15kg rests on a frictionless table and is accelerated by a spring with spring constant k = 4234N/m after being compressed the distance x1 = 0.536m from the spring's unstretched length. The floor is frictionless except for a roug..
After hitting a long fly ball that goes over the right fielder's head and lands in the outfield, If the player comes to rest at third base, how much work was done on the player by friction
how much money does it cost to leave a 100 watt light bulb on for 1 hour if electricity sells for 10cents per kW-h. a) 1cent b) 8 cent c) 22 cent d) 44cent e)100 cent
A parallel plate capacitor has plates that measure 13.5cm long by 9.75cm wide, if this capacitor is placed into a circuit with 9.50V applied to it, how much energy can the capacitor store
What is magnitude of the unknown force
A 370-kg sailboat has an acceleration of 0.87 m/s2 at an angle of 64° north of east. Find the magnitude and direction of the net force that acts on the sailboat.
Two point charges 1.9cm apart have an electric potential energy -150?J . The total charge is 30nC
An ion with charge q is distance r from a molecule with polarizability (alpha). Find an expression for the magnitude force F
Find the coefficient of friction between crate and floor
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