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An open container holds 0.550 kg of ice at - 15.0 degree celsius. The mass of the container can be ignored. Heat is supplied to the container at the constant rate of 800 J/min for 500 min .
Part A After how many minutes does the ice start to melt? = 21.7
Part B After how many minutes, from the time when the heating is first started, does the temperature begin to rise above 0 ?=252
Part C Plot a curve showing the temperature as a function of the elapsed time.
A hoop of mass 1.9 kg and radius 55 cm has a string wrapped around its circumference and lies flat on a horizontal frictionless table. What is the angular velocity of the hoop about its center of mass after 2 s
Two people are carrying a uniform wooden board that is 3.00 m long and weighs 160 N. If one person applies an upward force equivalent to 60 N at one end, at what point does the other person lift . If the tangential acceleration of a yo-yo at the en..
A skier leaves the ramp of a ski jump with a velocity of 30.0 m/s The slope is inclined at 50.0°, Find the distance from the ramp to where the jumper lands
A spring has k = 96 Nm. use a graph to determine the work needed to stretch it from x=3.8 cm to x=6.1cm, where x is the displacement from its unstretched length.
Two waves are described by the following wave functions y1(x,t) = 3.50 sin (2.00x ? 10.0t) y2(x,t) = 12.00 cos (2.00x ? 10.0t) , find the amplitude and phase of this sinusoidal wave
Suppose a 63.00 kg boy and a 50.00 kg girl use a mass less rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.00 m/s2, find out the magnitude of the acceleration of the boy toward girl.
The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250 mW, Find the peak electric field strength
Why does the base of a shuttle cock always lead in motion when hit with a racket. what is grocery carts final speed.
You walk for 6.44 km with at a constant velocity of 2.60 m/s due west, turn around, and then walk with an average velocity of 0.405 m/s due east, During the trip, how far east did you walk
What is the sound intensity level. One on an Incline--One Hanging A block of mass mA = 4.50 kg on a frictionless inclined plane of angle 30.0° is connected by a cord over a massless, frictionless pulley to the second block of mass mB = 2.80 kg ha..
A roach that runs for its life because you try to hit it with your physics book runs off the horizontal tabletop with a speed of 0.578 m/s, Find the height of the table
what is the translational rms speed of carbon dioxide molecules.
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