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An automobile has a total mass of 1700 kg. It accelerates from rest to 40 km/h in 10 s. Assume each wheel is a uniform 32 kg disk. Find, for the end of the 10 s interval,
(a) the rotational kinetic energy of each wheel about its axle,
(b) the total kinetic energy of each wheel, and
(c) the total kinetic energy of the automobile.
An 18-year-old runner can complete a 10.0 km course with an average speed of 4.38 m/s. A 50-year-old runner can cover the same distance with an average speed of 3.88 m/s. How much later (in seconds) should the younger runner start in order to fini..
In the two-slit experiment, the distance between the slits and the screen is 1.10 m and the distance between the slits is 0.100 mm. what is the wavelength of light
In a friendly game of handball, you hit the ball essentially at ground level and send it toward the wall with a speed of 15 m/s at an angle of 32° above the horizontal. (a) How long does it take for the ball to reach the wall if it is 4.2 m away? ..
Why is you are not harmed with the contact of a charged metal ball, although its voltage may be very high? Is the reason similar to why you are not harmed by greater-than-10000 C sparks from the Fourth-of-July sparkler? Define your answer in terms..
A scientific supply catalog advertises a material having the index of refraction of 0.85. Is that a better product to buy? Why or why not.
At the end of the first fiscal year, $3,000,000 has been spent on the project. $1,500,000 has been collected from the grantor. Explain how should the grantee's Enterprise Fund statement of cash flows report the cash inflows?
After the collision (assumed elastic), the second ball is moving along the positive y axis. Elucidate the final direction of the first ball, and what are their two speeds?
A long string with a mass/length of 500 g/m is placed under a tension of 400 N, What is the wavelength of the resulting wave
A person walks 25.0° north of east for 2.70 km. How far would the person walk due north and due east to arrive at the similar location.
A certain car is capable of accelerating at a rate of 0.52 m/s2. How long does it take for this car to go from a speed of 27 mi/h to the speed of 33mi/h.
The generator at a power plant produces AC at 29,000 V. A transformer steps this up to 305,000 V for transmission over power lines, how many turns must there be in the output coil
According to legend, to determine whether the king's crown was made of pure gold, Archimedes measured the crown's volume by find out how much water it displaced. The density of gold is 19.3g/cm^3. If the crown's mass was 6.00 * 10^2g, what volume ..
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