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A 1.10-mol sample of hydrogen gas is heated at constant pressure from 304 K to 422 K.
(a) Calculate the energy transferred to the gas by heat.
(b) Calculate the increase in its internal energy.
(c) Calculate the work done on the gas.
A stick with a length of 1m is supported by a knife edge at the 50 cm mark (middle). Two masses m1: 0.4 kg and m2: 0.6 kg are hanging.. m1 20 cm from the left end, Calculate the torque created by m1
a 30 kg crate is pulled across a flat floor with 80 n of force. the coefficient of kinetic friction between the crate
In a simplified model of a hydrogen atom, the electron moves around the proton nucleus in a circular orbit of radius 0.53 × 10^?10 m, Determine the period of the circular motion
A boy 11.0m above the ground in a tree throws a ball for his dog, who is standing right below the tree and starts running the instant the ball is thrown. How far from the tree will the dog catch the ball
A UFO streaks across the sky at a speed of 0.90c relative to the earth. What length does the person measure for the UFO when it lands
A boy shoots a BB gun horizontally at a target 15 m away. The gun is aimed directly at the center of the target, but the small metal BB hits 56 cm lower. avoid any air resistance, what was the initial speed of the BB.
One mole of an ideal diatomic gas is expanded at constant temperature from a pressure of two atmospheres, What are the final temperature and pressure of the gas
A 2kg box slides along a frictionless surface with a speed of 15m/s and approaches a horizontal spring with a spring constant of 2000N/m. If one end is fixed, How far will the spring compress in stopping the box
The angular velocity of a wheel is given by %uDBC0%uDF9D(t) = (2.00 rad/s2)t + (1.00 rad/s4)t3. What is the angular acceleration of the wheel as a function of time
The distance between two successive minima of a transverse wave is 2.57 m. Five crests of the wave pass a given point along the direction of travel every 12.4 s. Find the frequency of the wave
An object is oscilliating on a spring with a period of 4.60 s . At time t= 0.00 s the object has zero speed and is at x = 8.30 cm . What is the acceleration of the object at t= 2.50 s ?
The maximum current an ac device draws is 1.80 A when connected to a 120 V outlet. What is the effective current of the device
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