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What mass of water at 23.0 °C should be allowed to come to thermal equilibrium with a 1.57-kg cube of aluminium initially at1.50 multiplied by 102 °Cto lower the temperature of the aluminium to 69.8 °C? Suppose any water turned to stream subsequently re condenses.
A potential difference of 2.0 V is applied across a wire of cross sectional area 2.5 mm^2. What is the resistance of the wire
A typical nuclear reactor generates 1000 MW(1000MJ/s) ofelectrical energy. In doing so, it produces 2000 MW of"waste heat" that must be removed from the reactor to keep it frommelting down. Many reactors are sited next to large bodies of waterso t..
An elevator cable breaks when a 975 kg elevator is 24.5 m above the top of a huge spring (k = 8.00 x 10^4 N/m) at the bottom of the shaft. Calculate the speed of the elevator just before striking the spring
Planet X is 347 times more massive than Earth, and its radius is 10.3 times Earth's radius. How many times more would you weigh on Planet X
A roller coaster car moves 200 ft horizontally and then rises 135 ft at an angle of 30 degrees above the horizontal, What is its displacement from its starting point
Note down that since each oscillator is attached to two "springs", and each "spring" is half the length of the interatomic bond, the effective interatomic spring stiffness for one of these oscillators is times estimated value given above.
The length of the ice block is L1 = 0.00484 m and its temperature is T1 = -11.0 °C. The aluminum block is L2 = 0.00139 m long, Calculate the heat per second per square meter
A migrating bird is initially flying south at 10 m/s. To avoid hitting a high-rise building, the bird veers and changes its velocity to 3 m/s east over a period of 2 s. What is the bird's average acceleration (magnitude and direction) during this ..
The ultrasonic transducer used in medical ultrasoundimaging, is a very thin disk ( m =0.10g) driven back, What is the disk's maximum speed at this amplitude
A turbine blade rotates with angular velocity w(t)= 2.00 rad/s - 2.100 rad/s^3 t^2. What is the angular acceleration of the blade at t = 9.1 s
Compute the linear momentum and angulat momentum of a Frisbee of mass 0.16 kg. if it has a linear speed 0f 2.0 m/s and an angular velocity of 50 rad/s
In the movie Thelma and Louise, the two actresses drove off a cliff at the end. In preparation for the scene, their stunt double determined that the cliff was 50.0m high. The director wants the car to land 90.0m from the base of the cliff close ..
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