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A heat engine operating at a maximum efficiency of 28.0% does175 joules of work in each cycle.
a) How much heat is absorbed by this engine per cycle?b) If the heat is absorbed at 187°C, at what temperature is the heat discarded?
Misako is about to do a push-up. Her center of gravity lies directly above a point P on the floor, what is the force exerted by the floor on her hands
In a uniform electric field of magnitude E, the field lines cross through a rectangle of area A at an angle of 77.0° with respect to the plane of the rectangle, What is the magnitude of the flux through the rectangle
A bicyclist is riding a bicycle on a flat road. (Figure 2) The combined mass of the bicyclist and bicycle is = 110 , the radius of each wheel is = 32.5 , and the coefficient of rolling resistance between the tires and the road is = 0.170 . The ped..
a block of mass 0.222 kg is placed on the end of a spring which has a stiffness of 150. nm. it is pulled down 2.60 cm
A town is installing a new 10” main to carry drinking water. The only section remaining to be installed is a segment through the middle of town. Calculate the length of pipe required for the pipe system.
An air parcel with mass = 150 kg is traveling at 15 meters per second due east at 38 degrees North at an altitude of 5500 meters. What is the total force exerted on the air parcel
Shaving/makeup mirrors typically have one flat and one concave (magnifying) surface. compute the focal length of the mirror
A 10 \rm g bullet traveling at 440m/s strikes a 12kg , 1.2-\rm m-wide door at the edge opposite the hinge. The bullet embeds itself in the door, What is the angular velocity of the door just after impact
At an instant in time, an electron has a velocity of 5i + 3j - 4k km/s in a region of space, Find the acceleration of the electron at this instant
The electricity supplied through a city power line is transmitted at 14,300 V. On each city block there are one or more neighborhood transformers on utility poles that transform the potential difference to 120 V, as used in homes and businesses (2..
a container is filled to a depth of 22.0 cm with water. on top of the water floats a 28.0-cm-thick layer of oil with
A flat (unbanked) curve on a highway has a radius of240 {\rm m}. A car rounds the curve at aspeed of 20.0 {\rm m}/{\rm s}. What is the minimum coefficient of frictionthat will prevent sliding?
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