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A motorist drives south at 28.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.00 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 6.00 min trip, find the following values.
(a) total vector displacement
____________m (magnitude) ° south of west
(b) average speed
____________m/s
(c) average velocity
____________m/s (magnitude) ° south of west
A thermos contains 125 cm3 of coffee at 85° C. To cool the coffee, you drop two 13-g ice cubes into the thermos. The ice cubes are at first at 0° C and melt completely. What is the final temperature of the coffee? Treat the coffee as if it were wa..
Electromagnetic wave 1 has a maximum electric field of 55 V/m, and electromagnetic wave 2 has a maximum magnetic field of 1.5 microtesla. Calculate the average intensity of the first wave
An observer, whose eyes are 1.92m above the ground, is standing 31 m away from a tree. The ground is level and the tree is growing perpendicular to it. The observer's line of sight with the treetop makes an angle of 21° above the horizontal. How t..
At NASA's Zero Gravity Research Facility in Cleveland, Ohio, experimental payloads fall freely from rest in an evacuated vertical shaft through a distance of 132 m. How fast will the payload be traveling when it reaches the bottom of the shaft
In a velocity selector, the uniform magnetic field of 1.6 T is produced by a large magnet. What voltage should be applied across the plates
Find out an average acceleration of the motorcycle
You decrease the angular speed of the cylinder from 4:0 rad/s to 2:0 rad/s in 20:0 revoluations at constant angular acceleration. What is the angular acceleration during this decrease
A 34.0kg crate is initially moving with a velocity that has magnitude 3.70m/s in a direction 37.0 %u2218west of north. How much work must be done on the crate
Describe the method used to measure the Sun's shadow and in the drawing on page 18 what are the letters b and d used for?
A scaffold of mass 43 kg and length 6.5 m is supported in a horizontal position by a vertical cable at each end. What is the tension in the nearer cable
An RC circuit with 2.50 ?F and 7.60 M?? includes a 6.00 volt source, What is the time constant for charging the capacitor
A horizontal spring with force constant k = 4.80N/m connects the other end of the rod to a vertical wall. The rod is in a uniform magnetic field B = 0.310T directed into the plane.
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