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A merry go round at a children's playground can be approximated as a uniform circular disc with a diameter of 3.72 m and a mass of 288 kg. A constant force of 178 N is applied perpendicular to the outer edge of the merrygoround. How long does it take this force to accelerate the merrygoround to an angular speed of 18.3 rpm. Every step please, with calculations.
Find the charge on sphere A. How far from the dog will the suitcase land.
assume that the mass moves in a circle at constant speed, and that the string makes an angle theta = 20° with the vertical. How long does it take the mass to create one complete revolution.
Find out the maximum distance d (along the ladder) that the monkey can climb up the ladder before rope breaks.
What are the corresponding velocity vectors
A steel safe with mass 2200 kg falls onto concrete. Just before hitting the concrete its speed is 40 m/s, and it smashes without rebounding and ends up being 0.06 m shorter than before. What is an approximate magnitude of the force exerted on the ..
A magnifier has a magnification of 8 times. How far from the lens should an object be placed so that its (virtual) image is at the near-point distance of 25 {rm cm}.
A circular wire loop of radius 13cm carries a current of 3.66 A. It is placed so that the normal to its plane makes an angle of 34.8° with the uniform magnetic field of magnitude 9.70 T.
Illustrate energy bar graphs to solve the problem . What is amplitude of the oscillations.
What is an angular acceleration
What is the size of the smallest vertical plane mirror in which a 10 tall giraffe standing erect can see her full-length image? (Hint: Locate the image by drawing a number of rays from giraffe's body that reflect off the mirror and go to her eye.
What is the velocity of the beam of electrons that go undeflected when passing during perpendicular electric and magnetic fields of magnitude 4700 V/m and 3.6×10-3 T, correspondingly.
The 2.00 kg object below is released from rest at the height of 5.0 m on a curved frictionless ramp. At the foot of the ramp is a spring of force constant k = 450 N/m. The object slides down the ramp and into the spring, compressing it a distance x b..
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