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Two 50 g of ice cubes are dropped into 200g of water in a thermally insulated container. If the water is originally at 25 degrees Celsius, and the ice comes directly from a freezer at -15 degrees Celsius, what is the final temperature at thermal equilibrium? (a) What is the final temperature if merely ice cube is used?
small metal bead, labeled A, has a charge of 26 . It is touched to metal bead B, initially neutral, then that the two beads share the 26 charge, but not required equally. When the two beads are then placed 5.0 apart, force between them is 5.4×10-..
The meaning and the basic applications of Newton's 1st and 2nd laws.
Two blocks are connected by a lightweight, flexible cord that passes over a single frictionless pulley. If m1 >> m2, find the acceleration of each block
Investigate Ohm’s law for reverse currents in resistors. Turn off the power supply and reverse the connections on the power supply. Turn the power supply back on and take data from 5.0 V to 0 V. Do not stop data collection.
A solid ball of mass 2.6 kg and diameter 21 cm is rotating about its diameter at 80 rev/min. what is the new angular speed of the ball
a soccer player kicks the ball toward a goal that is 13.0 m in front of him. the ball leaves his foot at a speed of
A moving charge experiences the maximum possible magnetic force when moving in a magnetic field. What can you conclude about the angle that the charge's velocity makes with respect to the magnetic field? Explain
In 0.784 s, a 11.1-kg block is pulled through a distance of 4.71 m on a frictionless horizontal surface, starting from rest. The block has a constant acceleration and is pulled by means of a horizontal spring that is attached to the block.
Two objects with masses of 3.70kg and 7.80kg are connected by a light string that passes over a frictionless pulley. Determine the acceleration of each object
Suppose that three astronauts outside a spaceship decide to play catch. All three astronauts have the same mass and are equally strong. How long will the game last
The speed of a bobsled is increasing, because it has anacceleration of 2.4 m/s2. estimate the magnitude of the net force that acts on the bobsled
A physics student drops a vibrating 450 Hz tuning fork down the elevator shaft of a tall building. how far has the tuning fork fallen
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