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A spring-loaded dart gun is utilized to shoot a dart straight up into the air, and the dart reaches a maximum height of 24 meters. The same dart is shot up a second time from the similar gun, however this time the spring is compressed only half as far (compared to the first shot). How far up does the dart go this time (neglect friction and suppose the spring obey's hooks law)?
Consider an adiabatic turbine operating steadily. Does the work output of the turbine have to be equal to the decrease in energy of the steam flowing through it??
The water in a deep underground well is used as the cold reservoir of a Carnot heat pump that maintains the temperature of a house at 294 K. Determine the temperature of the well water
A small object is placed to the left of a convex lens and on its optical axis. The object is 30 cm from the lens, which has a focal length of 48 cm. Describe the nature of this new image
The average coefficient of volume expansion for carbon tetrachloride is 5.81 10^-4 (°C)?1. how much will spill over when the temperature rises
an astronaut is performing a space walk outside the international space station. the total mass of the astronaut with
The mass of a robot is 6210 kg. This robot weighs 3970 N more on planet A than it does on planet B. What is the difference MA - MB in the masses of these planets
the cue ball in a biliard game travelling at the speed of v=1m/scollides elastically to another ball of the same kind head-on. compute the speed of the two balls after the collision
A car traveling 56.1 km/h is 24.6 m from a barrier when the driver slams on the brakes. The car hits the barrier 1.72 s later. (a) What is the car's constant deceleration magnitude before impact? (b) How fast is the car traveling at impact?
To save on heating cost, the owner of a greenhouse keeps 660kg of water around in barrels. find the minimum ampere rating of an electric heating system
You place a long straight wire on top of your compass, and the wire is a height of 3 millimeters above the compass needle. calculate the approximate angle the needle deflects
When at rest, a proton experiences a net electromagnetic force that has a magnitude of 7.2 x 10^-4 N and points in the positive x-direction. Find the magnitude and direction of the magnetic field
An airplane is flying with a velocity of 81.0 m/s at an angle of 23.0 degrees above the horizontal. How far from the dog will the suitcase land in m
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