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An air bubble at the bottom of a lake 39.00 m deep has a volume of 1.00 cm3. If the temperature at the bottom is 5.5°C and at the top 21.0°C, what is the volume of the bubble just before it reaches the surface?
A LASIK vision correction system uses a laser that emits 10 ns-long pulses of light, each with 2.5 mJ of energy. What is the average power of each laser pulse
A car has 53% of its weight on its front wheels and 47% on its rear wheels, How far from the rear axle is the car's center of gravity
two parallel plates are separated by a distance of 25mm. the potential difference across the plates is 500v, what is the change in kinetic energy of the electron in electron volts
1. Chameleons use their tongues to catch their prey. Their tongues typically accelerate at 250 m/s2 for up to 20 ms, then they travel at constant speed for a further 30 ms. During this total duration, of acceleration plus constant motion, of 5..
One way to attack a satellite in Earth orbit is to launch a swarm of pellets in the same orbit as the satellite but in the opposite direction. Suppose a satellite in a circular orbit 360 km above Earth's surface collides with a pellet having mass ..
A particle of mass 7.25 kg moves from rest at t = 0 under the influence of a single force of magnitude 42.5 N. Calculate the power delivered by the force
A particular engine has a power output of 4.00 kW and an efficiency of 23.0%. Assume the engine expels 7000 J of energy in each cycle. Find the energy absorbed in each cycle
The springs of a 1500kg car compress 5.00mm when its 68 kg driver gets into the driver seat. A 100 kg passenger then gets into the car. Find the total compression of the spring
Two point charges, +3.75 µC and -6.05 µC, are separated by 1.21 m. What is the electric potential midway between them
A satellite in Earth orbit has a mass of 106 kg and is at an altitude of 1.94 106 m.(Assume that U = 0 as r ? infinity), What is the potential energy of the satellite-Earth system
A missile of mass 1.10 102 kg is fired from a plane of mass 5.10 103 kg initially moving at a speed of 3.50 102 m/s. determine is the final velocity of the plane
Some sharks respond to very weak electric fields, as weak as 1.0 µV/m. To grasp how weak this field is, how far apart would the plates have to be
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