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A 115.29 g ice cube at -11°C is placed in an aluminum cup whose initial temperature is 79°C. The system comes to an equilibrium temperature of 19°C. What is the mass of the cup?
A solid cylinder with mass and radius, rotating with angular speed about an axis throughout its center, is set on the horizontal surface for which the kinetic friction coefficient is.
Automobile engine slows down from 4500 rpm to 1200 rpm in 2.5 s. compute (a) its angular acceleration, assumed constant and (b) total number of revolutions the engine makes in this time.
A device used in radiation therapy for cancer contains 1.40 g of cobalt 2760Co (59.9333819 u). Determine the activity of the radioactive material
A lithium-5 nucleus is moving at 1.6 Mm/s when it decays into a proton and an alpha particle. What are the magnitude and direction of the proton's velocity
A point on the outer rim of a tire on a moving vehicle exhibits uniform circular motion with a frequency of 28 Hz. calculate How fast is the car moving in km/hr
A 13.0 k? resistor and a capacitor are connected in series and then a 12.0 V potential difference is suddenly applied across them. Calculate the time constant of the circuit
Here is a box on whose surfaces the electric field is measured to be horizontal and to the right, Calculate the electric flux through every face of the box, Calculate the total flux through the box
A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 3.6 m/s. How much time does it take until he catches his friend
Initially at a temperature of 87.0?C, 0.300m3 of air expands at a constant gauge pressure of 1.39×105Pa to a volume of 1.47m3, Compute the total work done by the air
Water flowing in a horizontal pipe is at a pressure of 1.55 105 Pa at a point where its cross-sectional area is 6.00 m2. Find the water's speed in the wider pipe
A 1070-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam.
An organ pipe is shown to resonate at 240 Hz, 320 Hz, and 400 Hz. It does not resonate at any other frequencies between 240 Hz and 400 Hz, How long is the organ pipe
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