A record player turntable initially rotating at 3313 rev/min is braked to a stop at a...
A record player turntable initially rotating at 3313 rev/min is braked to a stop at a constant rotational acceleration. The turntable has a rotational inertia of 0.021 kg⋅m2 . When it is switched off, it slows down to 75% of its initial rotational speed in 5.5 s .
Part A
How long does it take to come to rest?
Express your answer with the appropriate units.
|
Homework Answers
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A record player turntable initially rotating at 3313 rev/min is
braked to a stop at a...
Part C. Problems Determine the answer for the question provided. Show all reasoning/work for partial credit....
Part C. Problems Determine the answer for the question provided. Show all reasoning/work for partial credit. Each problem is worth 10 points and this section is worth 50 points. A record player turntable rotating at 33 1/3 rev/min is braked to a stop at constant rotational acceleration. The turntable has a rotational inertia of .027 kg m2. When it is switched off, it slows down to 75% if its initial rotational speed in 3.5s. 1. How long does it take...
The turntable in a microwave oven has a moment of inertia of 0.045 kg⋅m2and is rotating...
The turntable in a microwave
oven has a moment of inertia of 0.045 kg⋅m2and is rotating once
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Constants Periodic Table ▼ Part A The turntable in a microwave oven has a moment of inertia of 0.045 kg.m2 and is rotating once every 4.0 s What is its kinetic energy? Express your answer with the appropriate units. |K-1 Value Units Request Answer Submit
A very long, rectangular loop of wire can slide without friction on a horizontal surface. Initially...
A very long, rectangular loop of wire can slide without friction
on a horizontal surface. Initially the loop has part of its area in
a region of uniform magnetic field that has magnitude B = 3.30 T
and is perpendicular to the plane of the loop. The loop has
dimensions 4.00 cm by 60.0 cm, mass 26.0 g , and resistance R =
7.00×10−3 Ω . The loop is initially at rest; then a
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A cooling fan is turned off when it is running at 890 rev/min . It turns...
A cooling fan is turned off when it is running at 890 rev/min . It turns 1400 revolutions before it comes to a stop. Part A What was the fan's angular acceleration, assumed constant? Express your answer using three significant figures. α α = −.400 rad/s2 SubmitPrevious AnswersRequest Answer Incorrect; Try Again; 8 attempts remaining Part B How long did it take the fan to come to a complete stop? Express your answer to three significant figures and include the...
A potter is shaping a bowl on a potter's wheel rotating at constant angular velocity of 1.3 rev/s (Figure 1). The frict...
A potter is shaping a bowl on a potter's wheel rotating at constant angular velocity of 1.3 rev/s (Figure 1). The friction force between her hands and the clay is 1.6 N total. a. How large is her torque on the wheel, if the diameter of the bowl is 9.0 cm? Express your answer to two significant figures and include the appropriate units. b. How long would it take for the potter's wheel to stop if the only torque acting...
none of these answers are working.... error message tries to explain it? can someone olease help...
none of these answers are working.... error message tries to
explain it? can someone olease help me
CHW#9 Question 10 A turntable turning at rotational speed 45 rpm stops in 45 s when turned off. The turntable's rotational inertia is 1.8 x 102 kg.ma Part A Determine the magnitude of the resistive torque that slows the turntable Express your answer with the appropriate units. Mastering Physics: HW#9 - Google Chroge - session masteringphysics.com/myct/item View?mode- ? I'HHAO 1.88(10-) nm ANSWER 3...
1. IP A turntable with a moment of inertia of 5.2×10−3 kg⋅m2 rotates freely with an angular speed of 3313rpm . Riding...
1. IP A turntable with a moment of inertia of 5.2×10−3 kg⋅m2 rotates freely with an angular speed of 3313rpm . Riding on the rim of the turntable, 19 cm from the center, is a cute, 32 g mouse.A) If the mouse walks to the center of the turntable, will the turntable rotate faster, slower, or at the same rate? (Answer is Slower)B) Explain.C) Calculate the angular speed of the turntable when the mouse reaches the center.2. One elevator arrangement...
1. According to the paper, what does lactate dehydrogenase (LDH) do and what does it allow...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
Part C. Problems Determine the answer for the question provided. Show all reasoning/work for partial credit. Each problem is worth 10 points and this section is worth 50 points. A record player turntable rotating at 33 1/3 rev/min is braked to a stop at constant rotational acceleration. The turntable has a rotational inertia of .027 kg m2. When it is switched off, it slows down to 75% if its initial rotational speed in 3.5s. 1. How long does it take...
The turntable in a microwave
oven has a moment of inertia of 0.045 kg⋅m2and is rotating once
every 4.0 s .What is its kinetic energy?
Constants Periodic Table ▼ Part A The turntable in a microwave oven has a moment of inertia of 0.045 kg.m2 and is rotating once every 4.0 s What is its kinetic energy? Express your answer with the appropriate units. |K-1 Value Units Request Answer Submit
A very long, rectangular loop of wire can slide without friction
on a horizontal surface. Initially the loop has part of its area in
a region of uniform magnetic field that has magnitude B = 3.30 T
and is perpendicular to the plane of the loop. The loop has
dimensions 4.00 cm by 60.0 cm, mass 26.0 g , and resistance R =
7.00×10−3 Ω . The loop is initially at rest; then a
constant force Fext = 0.180 N...
none of these answers are working.... error message tries to
explain it? can someone olease help me
CHW#9 Question 10 A turntable turning at rotational speed 45 rpm stops in 45 s when turned off. The turntable's rotational inertia is 1.8 x 102 kg.ma Part A Determine the magnitude of the resistive torque that slows the turntable Express your answer with the appropriate units. Mastering Physics: HW#9 - Google Chroge - session masteringphysics.com/myct/item View?mode- ? I'HHAO 1.88(10-) nm ANSWER 3...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
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