Physics, 23.12.2019 19:31 nataliem02
Uniform solid sphere of mass m and radius r rotates with an angular speed w about an axis through is center a uniform solid cylinder of mass m radius r, and length 2r rotates through an axis running through the central axis of the cylinder what must be the angular speed of the cylinder so it will have the same rotational kinetic energy the sphere?
a. 2 omega/5
b. squareroot 2/5 omega
c. 4 omega/5
d. omega/5
e. 2omega/squareroot 5
Answers: 3
Physics, 21.06.2019 19:30
A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?
Answers: 1
Physics, 21.06.2019 23:30
Abeam of electrons with of wavelength of 7.5 x 10-6 m is incident on a pair of narrow rectangular slits separated by 0.75 mm. the resulting interference pattern is projected onto a screen 10.0 m from the slits. what is the separation of the interference maxima in the resulting interference pattern?
Answers: 2
Physics, 22.06.2019 04:30
Which of the following is not a characteristic of s waves? a. travel slower than p waves. b. cannot be detected in locations more than 105° from an earthquake’s epicenter. c. travel through solids and liquids. d. only affect coastal regions.
Answers: 2
Physics, 22.06.2019 23:40
A2.50 × 105 w motor is used for 26.4 s to pull a boat straight toward shore. how far does the boat move toward shore if a force of 4.20 × 104 n is applied by the motor?
Answers: 2
Uniform solid sphere of mass m and radius r rotates with an angular speed w about an axis through is...
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