You are transported to another planet that hos a diameter of 2720 KM а You set up a pedilum with a 3m cord and find that the period of oscillation is 12 seconds. What is the Mass of the planet?
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- Black holes are difficult to observewith telescopes because they, bydefinition, don’t emit or reflect any light. They can be found by look-ing for other nearby objects orbit-ing them, however. Here is a dia-gram of a star in a circular orbit around a black hole. a. The period of the star’s orbit is 90 days, and its orbital radius around the black hole isobserved to be 3.6 : ×10^11 m. Find the orbital velocity of the star in units of m/s. (You need to convert 90 days to seconds, first). The circumference of a circle is 2πr. b. The mass of the star is known to be 4 × 10^30 kg. Find the centripetal acceleration of thestar and the strength of the gravitational force on the star. c. Find the mass of the black hole.K ( thevine white 51649 1₁ Class Work ADVANCED PLACEMENT PHYSICS 1 EQUATIONS, EFFECTIVE ELECTRICITY MECHANICS acceleration A amplitude C. No - FM E e energy frequency f F = force K kinetic energy spring constam Wal- Langular mothentom (length P = power P momentum U 1.99 T= period wtime V b. Find the acceleration each mass. radius or separation W R-E! A 7. AV potential energy volume P-TAV R-ER What is the tension force in the rope? F 4 15 kg 1 = Jonash - speed work done on a system position scceleration w power charge 12 kg O 1. "A 12 kg load hangs from one end of a rope that passes over a small frictionless pulley. A 15 kg counterweight is suspended from the other end of the rope. The system is released from rest & time V a. Draw a free-body diagram for each object showing all applied forces in relative scale. Next to each diagram show the direction of the acceleration of that object. d. What distance does the 12 kg load move in the first 3 s? TEQUESEN What is the velocity of 15 kg…Can you solve it plz
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