A 4.00 kg hollow sphere (I = 2/3 ) is spinning with an angular velocity of 10.0 rad/s. The diameter of the sphere is 20.0 cm. The angular kinetic energy of the spinning sphere is

A. 1.75 J.
B. 1.50 J.
C. 1.33 J.
D. 0.90 J.
E. 0.75 J.


C. 1.33 J.

Physics & Space Science

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A uniform linear charge of 2.0 nC/m is distributed along the x axis from x = 0 to x = 3 m. What is the x component of the electric field at y = 2 m on the y axis?

A. ?5.0 N/C B. ?4.0 N/C C. ?5.7 N/C D. ?6.2 N/C E. ?9.0 N/C

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A pilot drops a package from a plane flying horizontally at a constant speed. Neglecting effects of air, when the package hits the ground the horizontal location of the plane will

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List the four fundamental forces in nature

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Physics & Space Science