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The earth has a radius of 6.38 x 106 m and turns on its axis once every 23.9 h. (a) What is the tangential speed (in m/s) of a person living in Ecuador, a country that lies on the equator? (b) At what latitude (i.e., the angle in the figure, in degrees) is the tangential speed 1/6 that of a person living in Ecuador?
A 19 g bullet is shot into a 5270-g wooden block standing on a frictionless surface. The block, with the bullet in it, acquires a velocity of 2.4 m/s. compute the velocity of the bullet before striking block.
The average density of the planet uranus is 1.27 x 10^3 kg/m^3. The ratio of the mass of neptune to that of Uranus is 1.19. The ratio of the radius of Neptune to that of Uranus is 0.969. Find the average density of Neptune.
An electron is accelerated from rest through a potential difference that has a magnitude of1.65 107 V. what is the relativistic kinetic energy (in joules) of the electron
Your little sister (mass 25.0 kg) is sitting in her little red wagon (mass 8.35 kg) at rest. Calculate the impulse you imparted to the wagon and its passenger
For a double-slit experiment, the inside edges of two 1.73-mm wide slits are separated by a distance of 1.35 mm. find the separation of the bright fringes on the screen
Some bacteria are propelled by biological motors that spin hair-like flagella. What is the angular speed (the magnitude of the angular velocity) of this bacterial motor
Two ice skaters are gliding together along the ice, both moving at a constant velocity (sliding without exerting a force). What is the initial speed of the skaters
A Galilean design telescope is to be made with an objective of focal length 450 mm with an angular magnification of 18. What should the focal length of the eyepiece be
A gymnast does a one handed handstand. The humerus, which isthe upper arm bone between the elbow and the shoulder joint, What is the compressional strain of the humerus
This figure (|| = 10.5 m/s2) represents the total acceleration of a particle moving clockwise in a circle of radius r = 2.40 m at a certain instant of time. (a) For that instant, find the radial acceleration of the particle. m/s2 (toward the center) ..
The top of her head is 0.12m above her eyes. What is the height of the shortest mirror in which she can see her entire image? Expalin how far above the floor should the bottom edge of the mirror be placed?
A 2.50-kg Pendulum is attatched to a string 11.4m stringis pulled aside until it is.386m above its lowest position and released. The pendulum is designed to emit sound waves at a frequency of 440 Hz; However, as it swings toward and away from an o..
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