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One gram of water changes from liquid to solid at a constantpressure of 1.00 atm and a constant temperature of 0°C. In theprocess, the volume changes from 1.00cm3 to 1.14 cm3
(a) Find the work done on the water.
(b) Find the change in the internal energy of the water.
force of a baseball swing, A baseball has mass 0.146kg. If the ball remains in contact with the bat for 2.5 ms, find the magnitude of the average force applied by the bat
compute the force exerted by the man, the work done by the man on the piano, the work done by the friction force, the work done by the force of gravity, and the net work done on the piano.
question1the starter motor of a car engine draws a current of 126 a from the battery. the copper wire to the motor is 6
In 0.744 s, a 8.16-kg block is pulled through a distance of 4.47 m on a frictionless horizontal surface, starting from rest. By how much does the spring stretch
A small airplane flies with a speed relative to the ground (ground speed) of 219.0 km/h in a direction 20.0 degrees to the east of north. what is the speed of the wind
A student sitting on a frictionless rotating stool has rotational inertia 0.90kg?m2 about a vertical axis through her center of mass when her arms are tight to her chest. Ignoring her arm mass, what's her new rotational velocity
The blades of a fan running at low speed turn at 260rpm . When the fan is switched to high speed, the rotation rate increases uniformly to 360rpm in 5.65s.
A Hall probe uses the Hall effect to measure the size of magnetic fields - it does this by measuring the potential difference across the electric field created by the displacement of charge
Two charges, q1 = -80 nC and q2 = +50 nC are placed 3 m apart as shown. The (x,y) coordinates of the charges and two other points in meters are indicated. Find out the electric potential at points A and B
A string requires a 186 N force in order to break. A 1.50 kg mass is tied to this string and whirled in a vertical circle with a radius of 1.90 m. What is the highest speed that this mass can be whirled without breaking the string.
Two automobiles of equal mass approach an intersection. One vehicle is traveling with velocity 14.9 m/s toward the east, What was the initial speed of the northward-moving vehicle
An electron is initially at rest just outside a large copper surface that has the charge density of 1.20 x10-6 C/m2. How far has the electron moved in 1.07 x10-9 s if the field is uniform over this region.
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