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A 1kg of ice at -30° C is added to 10 kg of steam at 500°C. answer the following questions:
a) What is the phase of the system of ice + steam if no heat escaped from it.
b) What is the final temperature when the equilibrium is established
What is the distance traveled from starting point to launch for an aircraft, An aircraft starts at rest and is accelerated at 13.6 m/s/s for 11.3 seconds, at which time the aircraft launches.
A hunter aims directly at a target (on the same level) 113 m away. If the bullet leaves the gun at a speed of 255 m/s, by how much will it miss the aim.
A disk, initially rotating at 149 rad/s, is slowed down with a constant angular acceleration of magnitude 4.23 rad/s2. (a) Explain by how much time does the disk take to stop? (b) Through what angle (rad) does the disk rotate during that time?
Find the change in momentum of a 1080 {rm kg} car that increases its speed from 5.0 {rm m/s} to 14.5 {rm m/s} in a time of 11 {rm s} while travelling in the same direction.
Find the force necessary to start the crate moving, given that the mass of the crate is 32 {rm kg} and the coefficient of static friction between crate and floor is 0.60.
Two loudspeakers are mounted on a merry-go-round whose radius is 9.01 m. When stationary, What is the beat frequency that is detected by the listener when the merry-go-round is near the position shown
A projectile is fired at an upward angle of 50° from the top of a 145m cliff with a speed of 195 m/s. What will be its speed while it strikes the ground below? (Use conservation of energy.)
An ocean liner leaves New York City and travels 13° north of east for 268 km. How far east and how far north has it gone? In other words, what are magnitudes of the components of the ship's displacement vector in the following directions.
Before starting this problem, review Conceptual. The force vector A has the magnitude of 75.0 newtons (N) and points due east. The force vector B has a magnitude of 101 N and points 72.9 ° north of east.
find speed at which the ball left the quarterback's hand.
The particle then begins to move. Find out the speed of the alpha particle after it has moved through a potential difference of −3.45×10−3 V.
what is the coefficient of kinetic friction between the box and the tabletop.
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