Consider a spacecraft in an elliptical örbit áröund thế éärth. t the low point, or perigee, of its orbit, it is 300 km above the earth's surface; at the high point, or apogee, it is 5000 km above the What is the period of the spacecraft's orbit? earth's surface. Express your answer in seconds. ? T = Submit Request Answer Part B Using conservation of angular momentum, find the ratio of the spacecraft's speed at perigee to its speed at apogee. Uperigee Vapogee Submit Request Answer

Consider a spacecraft in an elliptical örbit áröund thế éärth. t the low point, or perigee, of its orbit, it is 300 km above the earth's surface; at the high point, or apogee, it is 5000 km above the What is the period of the spacecraft's orbit? earth's surface. Express your answer in seconds. ? T = Submit Request Answer Part B Using conservation of angular momentum, find the ratio of the spacecraft's speed at perigee to its speed at apogee. Uperigee Vapogee Submit Request Answer

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Let's do this example, following the same steps that the example but with new numbers. r (0) = 4x0 8 = π rad Odot = 0.5 rad/s Odotdot 0.25 rad/s² Mass of the motorcycle is 150 kg. a. Now using the formula: ag = rö + 2rẻ what is the radial acceleration of the motorcycle? O 4.094 m/s² O 3.047 m/s² O 5.189 m/s² O 7.236 m/s² b. Let's find using the formula: tan = Note: is the derivation of the function r about 0. OOOO O 86.6 deg O 76.6 deg O 56.6 deg O 79.2 deg d. e. f. g. C. What is the magnitude of the friction force? Give your answer as an integer What is the magnitude of the normal force? Give your answer as an integer. If the path is defined by r (0) = 30². Using:tan find the angle at = rad. Give your answer with one decimal in degree. * (0) = 1/0² 0 (t) = 5t What is the magnitude r dot at t= 0.2 second? r (0) = 10² 0 (t) = 5t What is the magnitude r dot dot at t= 0.2 second?
Consider an annular disk rolling down an inclined plane. The annular disk has mass 154 [g], inner radius 8.00 [cm] and outer radius 12.0 [cm]. The inclined plane has a slope that forms an angle of 44.6° with the ground. A. Suppose that the coefficient of static friction ?s is large enough so that the annular disk rolls without slipping. What is the magnitude of the translation acceleration felt by the annular disk's center of mass in the direction parallel to the slope? B. What is the minimum value that the coefficient of static friction ?s must take so that the annular disk rolls without slipping?
A bucket of water with a mass of 2.36 kg is attached to a rope that is wound around a cylinder. The cylinder has a mass of 3.00 kg and is mounted horizontally on frictionless bearings. The bucket is released from rest. A) Find the speed of the bucket after it has fallen through a distance of 0.800 m. in m/s B) What is the tension in the rope? in N C) What is the acceleration of the bucket? Enter a positive value if the acceleration of the bucket is upward and enter a negative value if the acceleration of the bucket is downward. in m/s^2
Question 5: A particle of mass m is moving in a circular path of radius R as shown in Figure 3. The angular speed of the particle is given by w = Bt3/2. Find the tangential and the radial (centripetal) forces acting on the particle as a function of time t. In Figure 3, Ô and î are the tangential and radial unit vectors. Is the motion uniform or non-uniform? Explain your answer briefly. m Figure 3
Suppose that humans have created a colony outside of our solar system on a planet called Wfirst21. Wfirst21 has a mass of 1.45×1025 kg and a day that lasts 24.1 h (which defines the rotational period of the planet). The colony is located on the planet's equator. The colonists set up a communications satellite which orbits Wfirst21. The satellite has a circular orbit that keeps it positioned directly above the colony. Calculate the radius ?r of the satellite's orbit in kilometers.
Asteroids X, Y, and Z have equal mass of 3.0 kg each. They orbit around a planet with M = 6.20×1024 kg. The orbits are in the plane of the paper and are drawn to scale. с Z r Submit Answer S The three asteroids orbit in the same clockwise direction. The angular velocity of Y at n is .... that at i. The period of X is .... that of Y. The period of Y is that of Z. The angular velocity of Z at r is .... that at s. The angular momentum of X at s is .... that at e. The angular momentum of Y is .... that of Z. The angular velocity of Y at r is .... that of Z at r. Tries 0/20
A satellite with mass m, 102 kg orbits the Earth at a height of h = 503 km above the Earth's surface. The mass of the Earth is ME = 5.97 × 1024 kg and radius of the Earth is RE = 6.38 × 10° m. What is the magnitude of force that the Earth exerts on the satellite? F N Part 3) What is the orbital period of the satellite? T S
a. To lift heavy bricks from the ground to a rooftop, the bricks are placed in a container that is attached to one end of a rope that wraps around a rod coupled to the shaft of a motor. When the motor runs, the buckets will rise. i. Calculate the diameter of the rod so that the bricks can be raised at a constant speed of 3.5 km/h when the motor is running at 490 revolutions per minute? ii. If the bricks are to have an upward acceleration of 0.65 m/s2, calculate the angular acceleration of the rod.
1. I am driving my 3500 pound weight car at 45 mph around a flat curve of radius 50 meters. If the us = 0.85, do I make it around the curve? (Y/N). It starts raining and the us drops to .65. Do I make it now? (Y/N). At that speed what is the kinetic energy of my car? Joules 2. Tom is doing a bucket lab with a mass of 5 kg of water. If he swings it 8 times around in 8 seconds and his arm is 0.8 meters long, what centripetal force is the bucket putting on his shoulder? Does the water fall on him? Newtons. _(Y/N). If he were on Mars (m-6.42*10^23 Kg, R=3397000 meters) would he get wet? 3. You are working on a pumped storage facility design. You have a pond on top of a hill. You approximate the pond as a cylinder with a diameter of 1500 feet and an average depth of 20 feet. The center of the pond is 300 feet above a river where you will let the pond full of water flow thru a turbine making electricity. What is the GPE of the pond? joules
A small asteroid that has a mass of 150 kg is moving at 500 m/s when it is 950 km above the surface of the Moon. The radius of the Moon is 1.737E6 m and the mass of the Moon is 7.350E22 kg. a.How fast will the meteorite be traveling when it impacts the lunar surface if it is heading straight toward the center of the moon? b.The atmosphere of the Moon is negligible. How much work does the Moon do in stopping the asteroid?