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A truck tractor pulls two trailers, one behind the other, at a constant speed of 100 km/h. It takes 0.555s for the big rig to totally pass onto a bridge 450 m long. For what duration of time is all or part of the truck-trailer combination on the bridge?
A baseball is thrown horizontally at a speed of 43 m/s. When it reaches home plate, what is the horizontal component of its velocity
q1. speedboat a negotiates a curve whose radius is 118 m. speedboat b negotiates a curve whose radius is 270 m. each
A small circular hole 5.00 mm in diameter is cut in the side of a large water tank, 13.0 m below the water level in the tank. Find the speed at which the water shoots out of the tank
A vertical scale on a spring balance reads from 0 to 195 rm{N}. The scale has the length of 11.5 rm{cm} from the 0 to 195 rm{N} reading. A fish hanging from the bottom of spring oscillates vertically at a frequency of 2.30 rm{Hz}. What is the m of..
An airline passenger dangles her watch from a string while the jet takes off. The string makes an angle of 25o with respect to the vertical while the aircraft accelerates for takeoff, which takes about 18 seconds. Determine the takeoff speed of the a..
An electron is accelerated from rest through a potential difference that has a magnitude of1.65 107 V. what is the relativistic kinetic energy (in joules) of the electron
Suppose the device is used at a service station to measure the flow rate of gasoline (? = 7.00 102 kg/m3) through a hose having an outlet radius of 2.56 cm. Find the speed of the gasoline as it leaves the hose
A force of 2880 N is needed to bring a car moving at 20.8 m/s to a halt in 18.3 s. What is the mass of the car
What is the velocity of a beam of electrons that goes undeflected when moving perpendicular to an electric and magnetic fields
One of the loudest sounds in recent history was that made by the explosion of Krakatoa on August 26-27, 1883. what was the decibel level on Rodriguez Island
In compressing the spring in a toy dart gun, 0.6 J of work is done. When the gun is fired, the spring gives its potential energy to a dart with a mass of 0.08 kg, What is the dart's speed
A double-slit experiment is set up using a helium- neon laser (lamda=633nm). How thick is the glass
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