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A 0.230-kg piece of aluminum that has a temperature of -199 °C is added to 1.4 kg of water that has a temperature of 2.3 °C. At equilibrium the temperature is 0 °C. Ignoring the container and assuming that the heat exchanged with the surroundings is negligible, determine the mass of water that has been frozen into ice.
A device consisting of four heavy balls connected by low mass rods is free to rotate about an axle. It is initially not spinning. what is the angular speed of the device
A large population of aloha users manage to create 50 request/sec,including both originals and retransmissions.time is slotted in units 40msec.
A 100 m long pendulum having a small marble at the end swings 23.83 degrees from the lowest position. How many cm is the marble elevated? How many inches is the marble displaced horizontally?
A hot air balloon is rising upward with a constant speed of 5 m/s. How high above the ground is the balloon when the compass hits the ground
A 1.63 kg block of ice is sliding by you on a very slippery floor at m/s. As it goes by, you give it a kick perpendicular to its path. Your foot is in contact with ice block for 0.005 seconds. The block eventually slides at the angle of 24 degre..
The stagnation pressure indicated by a Pitot tube mounted on an airplane in flight is 45 kPa(abs). If the aircraft is cruising in standard atmosphere at an altitude of 10,000 m, determine the speed and Mach number involved.
A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 34.0 dB. What is the intensity delivered to the eardrum
A series RCL circuit has a resonant frequency of 2200 Hz. When operating at a frequency other than 2200 Hz, the circuit has acapacitive reactance of 5.50 Ohms and an inductive reactanceof 35.0 Ohms.
A particle moves so that its position as a function of time is r(t)= i hat + 4(t) ^2 j hat + (t)k hat, What is the shape of the particle's trajectory
Determine the vector magnetic moment of the current loop. Determine the component Bx of B→ . Determine the component By of B→. Determine the component Bz of B→ .
The rod is held in the horizontal position shown and then released. Compute the initial acceleration of the mass attached to l1. Assume up is positive and down is negative
A concave mirror has a focal length of 32.5 centimeter. The distance between an object and its image is 46.3 centimeter. determine the image and object distance
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