An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of 0.220 rev/s . The magnitude of the angular acceleration is 0.920 rev/s2 . Both the the angular velocity and angular acceleration are directed counterclockwise. The electric ceiling fan blades form a circle of diameter 0.800 m
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Physics, 22.06.2019 09:30
Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?
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Physics, 22.06.2019 19:30
Amass m = 74 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius r = 18.4 m and finally a flat straight section at the same height as the center of the loop (18.4 m off the ground). since the mass would not make it around the loop if released from the height of the top of the loop (do you know why? ) it must be released above the top of the loop-the-loop height. (assume the mass never leaves the smooth track at any point on its path.) 1. what is the minimum speed the block must have at the top of the loop to make it around the loop-the-loop without leaving the track? 2. what height above the ground must the mass begin to make it around the loop-the-loop? 3. if the mass has just enough speed to make it around the loop without leaving the track, what will its speed be at the bottom of the loop? 4. if the mass has just enough speed to make it around the loop without leaving the track, what is its speed at the final flat level (18.4 m off the ground)? 5. now a spring with spring constant k = 15600 n/m is used on the final flat surface to stop the mass. how far does the spring compress?
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Physics, 22.06.2019 22:30
When you hold a rectangular object, how does the area of the side that is resting on your hand affect the pressure and the force that the object exerts?
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Physics, 23.06.2019 02:00
The gravitational force between pluto and charon is 3.61 × 1018 n. pluto has a mass of 1.3 × 1022 kg, which is only slightly greater than charon’s mass of 1.6 × 1021 kg. how far apart are pluto and charon? 2.0 × 107 m 2.4 × 1012 m 3.8 × 1014 m 5.8 × 1024 m
Answers: 1
An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of...
Mathematics, 11.12.2019 22:31
English, 11.12.2019 22:31
Mathematics, 11.12.2019 22:31
Mathematics, 11.12.2019 22:31
Mathematics, 11.12.2019 22:31
English, 11.12.2019 22:31
Physics, 11.12.2019 22:31
Mathematics, 11.12.2019 22:31
English, 11.12.2019 22:31
English, 11.12.2019 22:31
Physics, 11.12.2019 22:31