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1. A 0.09-kg lead bullet traveling 227 m/s strikes an armor plate and comes to a stop. If all of the bullet's energy is converted to heat that it alone absorbs, what is its temperature change? In Celsius.
2. One cubic meter of water (see Table 4.4 for the mass density of water) flowing over the Albright Falls in Yellowstone National Park drops 79 m. If all of the water's potential energy is converted to kinetic energy at the bottom of the falls and the kinetic energy goes to heat the water, what is the temperature increase of the water? In Celsius
3. A proposed ocean thermal-energy conversion (OTEC) system is a heat engine that would operate between warm water (22°C) at the ocean's surface and cooler water (3°C) 1,686 m below the surface. What is the maximum possible efficiency of the system? Enter your answer accurate to two decimal places. In Percent
A 1000kg car moving 40m/s skids to a stop. During the skid, the only force is the frictional force between the tires and the road, which is 6000N. find the distance the car moves before coming to a stop
In a Millikan oil-drop experiment (Section 22-8), a uniform electric field of 3.91 x 105 N/C is maintained in the region between two plates separated by 6.80 cm
A sound wave propagating in air has a frequency of 4.45 kHz. Estimate the change in wavelength when the wave, initially traveling in a region where T = 27°C, enters a region where T = 11.5°C
An object is placed in front of a convex mirror with a 22.6-cm radius of curvature. A virtual image half the size of the object is formed. At what distance is the object from the mirror
If the wavelength of light is 400 nanometers in a substance where the speed of light is 2.35 x 108 meter per second, evaluate the wavelength of this light in air
At t = 0 a block with mass M = 5 kg moves with a velocity v = 2 m/s at position xo = -.33 m from the equilibrium position of the spring. The block is attached to a massless spring of spring constant k = 61.2 N/m and slides on a frictionless surfac..
how long does it take an automobile traveling in the left lane of a highway at 50.0 kmh to overtake become even with
water flows at a rate of 25 lmin through a horizontal 7.0-centimeter-diameter pipe under a pressure of 6.0 pa. at one
A converging lens of focal lenght 0.184 m forms a virtualimage of an object. What is the distancebetween the object and the lens
A hockey puck is hit on a frozen lake and starts moving with aconstant speed of 12 m/s. what is the average value of the coefficient of kineticfriction between the puck and the ice
A 61.5-kg person, running horizontally with a velocity of +3.99 m/s, jumps onto a 16.2-kg sled that is initially at rest. Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away
Light with a frequency of 2.95 x 1015 Hz ejects electrons from the surface of calcium, which has a work function of 2.87 eV. What is the minimum de Broglie wavelength of the ejected electrons?
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