Physics

PLEASE HELP DUE IN 5 MINUTES The acceleration due to gravity g at a distance r from the center of a planet of mass Mis 9 m/s2. In terms of the orbital distance r, whatwould the speed of this satellite have to be to remain in a circular orbit around this planet at this distance?Ov=3/5v=3rv=6rv=9r
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How much current, in amperes, is in a lightning stroke that lasts 0. 05 second and transfers 100 coulombs
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With all his gear, Neil Armstrong weighed 360 pounds on Earth. When he landed on the Moon, he weighed 60 pounds. Why?
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The observation that individuals from separate species cannot mate to produce offspring is a guideline for identifying _____.
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Your quadcopter has a terrible altitude sensor. To see how bad it really is you take many measurements with the quadcopter at 1 meter altitude. Your altitude sensor gives a mean of 1. 00 meters with a standard deviation of 13cm. The measurements are normally (Gaussian) distributed. What is the probability that your altimeter gives an error of less than 10cm for a single measurement?
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5. A child wanting to make a cordial ice block, places 200g of cordial at 25C in the freezer. If the freezer can remove energy at the rate of 250 joules per second, what time will it take for the cordial to freeze? (Assume the specific latent heat and specific heat capacity of cordial are the same as water.)
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What is the physical state of water at 250 degree centigrade
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A small 350 gram ball on the end of a thin, light rod is rotated horizontal circle of radius 1. 2 m. Calculate a. The moment of inertia of the ball about the center of the circle and b. The torque needed to keep the ball rotating at constant angular velocity if air resistance exerts a force of 0. 020 N on the ball. Ignore air resistance on the rod and it's moment of inertia.
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a 6.00-kg block is in contact with a 4.00-kg block on a horizontal frictionless surface as shown in the figure. the 6.00-kg block is being pushed by a horizontal 20.0-n force as shown. what is the magnitude of the force that the 6.00-kg block exerts on the 4.00-kg block?
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Wave interference that results in lesser wave amplitude is called.
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Two moles of helium gas initially at 367 Kand 0.6 atm are compressed isothermally to0.92 atm.Find the final volume of the gas. Assumethat helium behaves as an ideal gas. Theuniversal gas constant is 8.31451 J/K mol.Answer in units of m3Find the work done by the gas.Answer in units of kJ.
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What is the breaking rate? How does the breaking rate comapre to the acceleration ( the velocity decreases until it comes to stop) Velocity (m/s)504030201000Time (s)10
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The smallest separation between earth and jupiter is 588 million km while the largest separation is 968 million km. given that jupiter has a physical diameter of 140,000 km, what are the largest and smallest angular sizes of jupiter as seen from earth?
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Not far from the mirror showcase (the figure shows a top view) there is a person (indicated by point H in the figure), and closer to the showcase there is a lamppost (point C). By building, find the positions at which the observer (points H, which are indicated for example and are not the answer) will see in the window: a person to the left of the pillar; the person to the right of the pillar; a pole blocking a person
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please help PLEASE NOW Journal prompt to be answered in 2 fully developed paragraphs Prompt: What are some products (or programs) that you could purchase to help your performance in your current physical activity? How would the product (or program help)? Do you really think it is effective? Use specific examples from your experience.
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what latitude would you have to travel to see the noontime sun at your zenith on october 3rd (practice with other dates)? could you explain your answer? earth's axis of rotation is titled by 23.5 degrees.
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The shortest plane mirror in which you can see your entire image is:.
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Which force acts on falling objects to oppose gravity?
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What evidence supports the idea that the universe is expanding in all directions? A. Cosmic background radiationB. Nucleosynthesis C. Nuclear fusion in stars D. Redshift
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A 3. 2-kg point-mass travels around a 0. 45-m radius circle with an angular velocity of 11. 0 rad/s. What is the magnitude of its angular momentum about the center of the circle?
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If this metal is replaced with a metal having a higher work function, which light would have the best chance of releasing electrons from the metal?.
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Which word best completes the analogy?Health-related fitness is to health as skill-related fitness is to _____. A. exercise B. wellness C. performance D. fitness
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If all of the gravitation potential energy of the apple on the tree is transferred to the spring when it is compressed. What is the spring constant of this spring?
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The orbit of the moon about the earth is approximately circular, with mean radius of 3,84. 108m. It takes 27,3 days for the moon to complete one revolution about the earth. Find: a) the mean orbital speed of the moon; b) its centripetal acceleration
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