A sphere of radius 10.0 cm floats in equilibrium partially submerged in water with its lowest point 5.00 cm below the water's surface
(a) What is the buoyant force acting on the sphere?
(b) What is the weight of the sphere?
(a) 6.42 N
(b) 6.42 N
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A proton moving with a speed of 3.20 × 10^5 m/s perpendicular to a uniform magnetic field of 0.0786 T will follow which of the paths described below? (qp = 1.60 × 10^?19 C and mp = 1.67 × 10^?27 kg)
a. a straight-line path b. a circular path of 4.25 cm radius c. a circular path of 10.9 cm radius d. a circular path of 1.52 cm radius e. a circular path of 54.1 cm radius
A bobsled makes a run down an ice track starting at 250 m vertical distance up the hill. If there is no friction, what is the velocity at the bottom of the hill?
a. 35.0 m/s b. 49.5 m/s c. 46.7 m/s d. 70.0 m/s e. 58.3 m/s
Two charged particles repel each other with a force F. If the charge of one of the particles is doubled and the distance between them is also doubled, then the force will be
A) F. B) 2 F. C) F/2. D) F/4. E) none of the above
Explain the Jovian problem and some possible answers to why there are so many Jovian planets found around stars
What will be an ideal response?