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3 years ago

The Mass of a Body

Physics

1 answer:

9966 [12]3 years ago

7 0

Answer:

Acceleration does not affect mass. Acceleration only affects weight.

Explanation:

Your mass is the same on Earth compared to on the moon, but your weight is going to be different because the acceleration due to gravity is going to be different.

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An 20-cm-long Bicycle Crank Arm. With A Pedal At One End. Is Attached To A 25-cm-diameter Sprocket, The Toothed Disk Around Whic

malfutka [58]

To solve the problem, it is necessary to apply the concepts related to the kinematic equations of the description of angular movement.

The angular velocity can be described as

$\omega_f = \omega_0 + \alpha t$

Where,

$\omega_f =$ Final Angular Velocity

$\omega_0 =$ Initial Angular velocity

$\alpha =$ Angular acceleration

t = time

The relation between the tangential acceleration is given as,

$a = \alpha r$

where,

r = radius.

PART A ) Using our values and replacing at the previous equation we have that

$\omega_f = (94rpm)(\frac{2\pi rad}{60s})= 9.8436rad/s$

$\omega_0 = 63rpm(\frac{2\pi rad}{60s})= 6.5973rad/s$

$t = 11s$

Replacing the previous equation with our values we have,

$\omega_f = \omega_0 + \alpha t$

$9.8436 = 6.5973 + \alpha (11)$

$\alpha = \frac{9.8436- 6.5973}{11}$

$\alpha = 0.295rad/s^2$

The tangential velocity then would be,

$a = \alpha r$

$a = (0.295)(0.2)$

$a = 0.059m/s^2$

Part B) To find the displacement as a function of angular velocity and angular acceleration regardless of time, we would use the equation

$\omega_f^2=\omega_0^2+2\alpha\theta$

Replacing with our values and re-arrange to find $\theta,$

$\theta = \frac{\omega_f^2-\omega_0^2}{2\alpha}$

$\theta = \frac{9.8436^2-6.5973^2}{2*0.295}$

$\theta = 90.461rad$

That is equal in revolution to

$\theta = 90.461rad(\frac{1rev}{2\pi rad}) = 14.397rev$

The linear displacement of the system is,

$x = \theta*(2\pi*r)$

$x = 14.397*(2\pi*\frac{0.25}{2})$

$x = 11.3m$

5 0

4 years ago

Balance Ba(NO3)2 + Na2SO4 --> BaSO4 + NaNO3

Amiraneli [1.4K]

Ba(NO₃)₂ + Na₂SO₄ → BaSO₄ + NaNO₃

By Trial and error.

Ba(NO₃)₂ + Na₂SO₄ → BaSO₄ + 2NaNO₃

Check:

   LHS RHS
Ba    1 1
N 2    2
S    1 1
O 3*2 + 4 = 10    4 + 2*3 = 10

8 0

3 years ago

Read 2 more answers

Draw distance time grap for a body at rest

NARA [144]

It will be a straight horizontal line on the graph

4 0

4 years ago

Which of the following point towards the center of the circle in uniform circular motion?

Luba_88 [7]

Answer: E) Acceleration, net force

Explanation: In order to explain this problem we have to consirer that the uniform circulat motion has constant angular velocity (ω) and the vector velocity is changed its direction for any point that cover the circle but its modulus is contant and its value is v=ω*R. In order to ensure these conditions, the net force also the accelaration called centripetal must point to the center of the circular trajectory.

5 0

4 years ago

Why are theories excepted as true

Airida [17]

Answer:

A theory not only explains known facts; it also allows scientists to make predictions of what they should observe if a theory is true. Scientific theories are testable. New evidence should be compatible with a theory. If it isn't, the theory is refined or rejected.

Explanation:

Please mark as brainliest! Thanks!

4 0

3 years ago

Read 2 more answers