1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Naddika [18.5K]
3 years ago
7

How much power can I generate while lifting a mass for 30 seconds?

Physics
1 answer:
zepelin [54]3 years ago
8 0

about 5 watts (5W) of power

You might be interested in
A 4n force is applied to an object with a mass of 2kg what is the accelertion of the object
Pavel [41]

As per Newton's law we know that

F = ma

here we know that

F = 4 N

m = 2 kg

so from this equation we will have

4 = 2 a

a = 4/2 = 2 m/s^2

so the acceleration will be 2 m/s^2


5 0
3 years ago
Which phrase most closely characterizes a person's sense of self?
vampirchik [111]
My guess would be choice D
7 0
3 years ago
When it is at rotating at full speed, a disk drive in a certain old computer game system revolves once every 0.050 seconds. Star
Gemiola [76]

Answer:

α = 200*π rad/sec²

Explanation:

  • If the disk drive revolves once every 0.05 sec, this means that the angular velocity can be expressed as follows:

        \omega = \frac{2*\pi}{0.05s} = 40*\pi rad/sec

  • (just applying the definition of angular velocity)
  • Now, it the disk started from rest, and took two revolutions to reach to full speed, assuming that the angular acceleration is constant, we can find the angular acceleration applying this kinematic equation:

        \omega_{f} ^{2} -\omega_{0} ^{2} = 2*\alpha * \Delta\theta

  • where Δθ, is the angle rotated while it went from rest to full speed, i.e., 2 revolutions, or 2*π rads.
  • Replacing by the value that we found for ωf (as ω₀ = 0), we  can solve for α :

       \alpha =\frac{\omega_{f}^{2} }{2*\Delta\theta} = \frac{(40*\pi)^{2} }{2*2*2*\pi } =\\ \\ \alpha = 200*\pi rad/sec2

3 0
3 years ago
A golf club rotates 215 degrees and has a length (radius) equal to 29 inches. The time it took to swing the club was 0.8 seconds
vichka [17]

Answer:

The average linear velocity (inches/second) of the golf club is 136.01 inches/second

Explanation:

Given;

length of the club, L = 29 inches

rotation angle, θ = 215⁰

time of motion, t = 0.8 s

The angular speed of the club is calculated as follows;

\omega = (\frac{\theta}{360} \times 2\pi, \ rad) \times \frac{1}{t} \\\\\omega =  (\frac{215}{360} \times 2\pi, \ rad) \times \frac{1}{0.8 \ s} \\\\\omega = 4.69 \ rad/s

The average linear velocity (inches/second) of the golf club is calculated as;

v = ωr

v = 4.69 rad/s  x  29 inches

v = 136.01 inches/second

Therefore, the average linear velocity (inches/second) of the golf club is 136.01 inches/second

8 0
2 years ago
Which way does the direction arrow always points
wlad13 [49]
The directions arrow<span> is </span>always<span> going the wrong </span>way<span>.</span>
8 0
3 years ago
Other questions:
  • A ball is thrown upward. what is its initial vertical speed? the acceleration of gravity is 9.8 m/s 2 and maximum height is 4.1
    11·1 answer
  • Consider light energy that is momentarily absorbed in glass and then re-emitted. Compared to the absorbed light, the frequency o
    5·1 answer
  • A particular X-ray photon has initial energy of 60 keV when it enters the body. This photon transmits through 30 cm of soft tiss
    13·1 answer
  • What do we call factors that control traits
    7·1 answer
  • Which of these experiments would make use of qualitative data?
    7·1 answer
  • 30 kg sits on a table the acceleration due to gravity is 10 m/s^2 what force does the table exert on the television.
    13·1 answer
  • The parent function `f\left(x\right)=\sqrt[3]{x}` is compressed vertically by a factor of `\frac{1}{3}` and then translated 3 un
    7·1 answer
  • Where would you expect light waves to move faster?
    6·2 answers
  • The sun shines equally on both hemispheres during the summer and winter solstices.
    10·1 answer
  • An example please I'll do the others​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!