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Q. A 3.50 kg block of copper at a temperature of 75oC is dropped into a bucket containing a mixture of ice and water whose total mass is 1.20kg. While thermal equilibrium is reached the temperature of the water is 8°C. How much ice was in bucket before the copper block was placed in it?
How far downstream will you be carried. The water in a river flows uniformly at the constant speed of 2.03 m/s between parallel banks 87.7 m apart.
Write a paper follow below instructions: -the three classes of pumps which are, positive displacement, momentum transfer and entrapment
Suppose that the mass of the dishwater is large as much as necessary so that its temperature does not change appreciably.
The electric motor of a model train accelerates the train from rest to 0.580 m/s in 33.0 ms. the total mass of the train is 563 g. Find out the average power delivered to the train during its acceleration. The units need to W for the final answer.
Assume that the cell is floating on the surface of water, and that the water surface has a coefficient of friction of u=0.300. You now want to use a laser to move cell horizontally, along the surface of the water.
A block is given an initial velocity of 5 m/s up a frictionless 20 ° incline. How far up the incline does the block slide before coming (momentarily) to rest.
what speed does boxcar have after 10 seconds.What is the object's displacement Dx.
What is the change in entropy for the system. How much force must be applied to climb the hill at the same speed and same air resistance.
To stretch a relaxed biceps muscle 2.30cm requires a force of 25 N. Find the Young's modulus for muscle tissue assume it to be a uniform cylinder of length 0.24 m and cross-sectional area 51 cm2.
A robot probe drops a camera off the rim of the 389 m high cliff on Mars, where the free fall acceleration is 3.7 m/s^2. Find out velocity with which it hits the ground and the time required for it to reach the ground.
A 0.34 kg iron horseshoe that is initially at 616 ?C is dropped into a bucket containing 25 kg of water at 28 ?C. What is the final equilibrium temperature? Avoid any energy transfer to or from the surroundings and assume the specific heat of iron is..
An airtight box has a removable lid of area 1.10 multiplied by 10-2m2 and negligible weight. The box is taken up a mountain where the air pressure outside the box is 0.80 multiplied by 105 Pa.
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