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375 g of water at 90°C &199 g of glycerin at 47°C are pouredinto a 253 g copper cup at 68°C.Assuming these three make up a closed (or isolated) system,determine the final temperature of the system. The specific heat ofwater is 4186 J/kg·°C. The specific heat of glycerin is2410 J/kg·°C. The specific heat of copper is 387J/kg·°C.1°C
A rock weighing 7150 N rock with avolume of 34 L is completely submerged inmercury. The density of mercury is 13.6 kg/L.
a.) Determine the density of the rock.
kg/L
b.) Determine the buoyant force on the rock.
N
A spring-loaded cannon aimed at 40 degrees above the horizontal is on the last car of a long train of flat cars. What is the horizontal range observed by a person standing on the ground
An electric field applies a force of 9.11x10^-16N to an elctron emitted from the cathode-ray tube at essentially zero velocity. What is the instantaneous speed of the electron
A block is projected up a frictionless inclined plane with initial speed v0 = 8.50 m/s. The angle of incline is ? = 27.7°. How far up the plane does it go
a landing airplane makes contact with the runway with a speed of 40 m/s and moves toward the south. What is the average acceleration of the airplane
The resonant frequency of a certain series RLC circuit is 3.80 kHz, What is the value of the resonant frequency when the capacitance of the circuit is 9.20 µF
Suppose that the spin magnetic quantum number ms had three possible values, rather than two. how many electrons would it take to fill the K shell
a 1.99 kg block slides on a rough, horizonatl surface. The block hits a spring with a speed 2.16 m/s, what is the force constant of the spring
An object is located 75.0 cm in front of a mirror and on the principle axis. The mirror is concave with a radius of curvature 50.0 cm. State the properties of the image
Consider an ideal monatomic gas of 1026 atoms. What is the internal energy of this system at 27 °C? If the temperature is raised by 1 °C, by what factor does the number of accessible states increase? What is the increase in entropy in this case?
q1. a 73 trampoline artist jumps vertically upward from the top of a platform with a speed of 4.0. if the trampoline
The pressure in the fluid at the distance from the axis of rotation is. You may ignore the variation in pressure with depth; suppose that it is much smaller than the variation in pressure with radius.
The position vector of a particle of mass 1 kg is given by rarrowbolditalic = 6 ihatbold + 3t2 jhatbold, where r is in meters and t is in seconds. Determine the angular momentum and torque acting on the particle about the origin.
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