Consider the case of a rotating wheel at rest and starting a clockwise rotation, meaning the negative direction of the angular velocity, and increasing (negatively) its value up to

sunshine022uv
2021-12-18
Answered

Consider the case of a rotating wheel at rest and starting a clockwise rotation, meaning the negative direction of the angular velocity, and increasing (negatively) its value up to

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asked 2021-02-21

A 0.75-kg ball is attached to a 1.0-m rope and whirled in avertical circle. The rope will break when the tension exceeds 450 N. What is the maximum speed theball can have at the bottom of the circle without breaking the rope?

A) 38 m/s

B) 16 m/s

C) 12 m/s

D) 24 m/s

E) 32 m/s

A) 38 m/s

B) 16 m/s

C) 12 m/s

D) 24 m/s

E) 32 m/s

asked 2020-11-01

A horizontal force of 210N is exerted on a 2.0 kg discus as it rotates uniformaly in a horizontal circle ( at arm's length ) of radius .90 m. Calculate the speed of the discus

asked 2021-02-19

Three Children are trying to balance on a seesaw, which consists of a fulcrum rock, acting as a pivot at the center, and avery light board 3.6 m long. Two playmates are already on either end. Boy A has a mass of 50kg, and girl B a mass of 35 kg. Where should girl C, whose mass is 25 kg, placed herself so as to balance the seesaw.

asked 2021-04-21

The arm weighs 44.0 N. The force of gravity acting on the arm acts through point A. Determine the magnitudes of the tension force t in the deltoid muscle and the force s of the shoulder on the humerus (upper-arm bone) to hold the arm in the position shown.

t=N

s=N

t=N

s=N

asked 2021-11-11

Light of a certain frequency has a wavelength of 526 nm in water. What is the wavelength of this light in benzene?

asked 2020-11-08

Three charges are fixed to an xy coordinate system. A charge of $+18\mu C$ is on the y axis at y=+3.0m. A charge of $-12\mu C$ is at the origin. Lastly, a charge of +45 is on the x-axis at x=+3.0 m. Determine the magnitude and direction of the net electrostatic force on the charge at x=+3.0m. Specify the direction relative to the x-asis

asked 2021-12-26

Suppose that the position of a particle is given by

(a) Find the velocity at time t.

(b) Find the velocity at time

_____

(c) Find the acceleration at time t.

(d) Find the acceleration at time

_____