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A 5.75 kg mass explodes into three pieces. A 2.25 kg piece moves north at 6 m/s; a 1.25 kg piece moves east at 4 m/s. Find the total energy release by the explosion.
Initially, the translational rms speed of a molecule of an ideal gas is 464 m/s. find the final translational rms speed of the molecules
A beam of light in air strikes a glass slab at normal incidence. The glass slab has an index of refraction of 1.50. find what percentage of the incident light intensity is transmitted
A quasar 10 billion light years from Earth appears the same brightness as a star 5.9*10^4 light years away. How does the power ouput of the quasar compare with that of the star
62. A 17.0-kg crate is to be pulled a distance of 20.0 m, requiring1210 J of work to be done. If the job is done by attaching a ropeand pulling with a force of 75.0 N, at what angle is the ropeheld?
A group of particles is traveling in a magnetic field of unknown magnitude and direction. What is the direction of this the magnetic force
A point source emits 26.2 W of sound isotropically. A small microphone intercepts the sound in an area of 0.121 cm2, determine the power intercepted by the microphone
Colonel John P. Stapp, USAF, participated in studying whether a jet pilot could survive emergency ejection. Determine the negative acceleration he experienced
a gas cylinder containing 3.88 mol of helium has a pressure of 549 mm hg at 298 k.if 1.22 mol of neon is added to this
A 1130 kg car traveling initially with a speed of 25.60 m/s in an easterly direction crashes into the back of a 9 550 kg truck moving in the same direction at 20.0 m/s. What was the velocity of the truck right after the collision
A charge of 26.0 nano coulombsis placed in a uniform electric field that is directed vertically upward and that has a magnitude of 4.00×10^4 N/C
At a crime scene, the forensic investigator notes that the 8.2 g lead bullet that was stopped in a door frame apparently melted completely on impact. assuming the bullet was fired at room temperature (20 C) what does the investigator calculate as the..
As a crude model for lightning, consider the ground to be oneplate of a parallel-plate capacitor and a cloud at an altitude of470 m to be the other plate. How much charge can the cloud hold
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