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A 60 g piece of ice at an initial temperature that is unknown is placed into a glass of 250 g of water sitting at room temperature when it is 80ºF in the room. The glass and ice come to thermal equilibrium at 4ºC.
an object with a mass of .40 kg moving with a speed of 25 ms is brought to rest after sliding on a rough surface. the
A meter stick is found to balance at the 49.7 cm mark whenplaced on a fulcrum. What is the mass of the meter stick
A train is travelling up a 4.40 incline at a speed of 3.30 when the last car breaks free and begins to coast without friction. How long does it take for the car to come to rest? How far does the car travel.
A man and a woman start at the same location. The man walks North for 30 minutes and travels a distance of 2.2 km, he then walks West for 20 minutes and travels a distance of 1.8 km. What is the woman's average velocity
Two trains approach each other on parallel tracks. how long (in seconds) will it be before they pass each other
find the linear momentum and kinetic energy of a truck of mass 1.00 104 kg moving at a speed of 18.0
A spinning object has a moment of inertia of 1.6 kg*m2. It is rotating at a rate of 1 rad/s. If the moment of inertia increases to 3 kg*m2, what is its new rotational velocity
Two bicycle tires are set rolling with the same initial speed of 3.50 m/s along a long, straight road, and the distance each travels before its speed is reduced by half is measured. One tire is inflated to a pressure of 40 psi and goes a distance ..
RLC alternating current circuit with a 25 ohm resistor, What is the average power when operating at twice the resonant frequency
a 0.0017 t magnetic field and a 5.7 103 nc electric field both point in the same direction. a positive 2.0-mc charge
In recent years, practical hybrid cars have hit the road - cars in which the gasoline engine runs a generator that charges batteries that run an electric motor. These cars offer increased efficiency, but significantly greater efficiency could be p..
question1a mountain climber in procedure of crossing between two cliffs by a rope pauses to rest. she weighs 521 n. as
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