A horizontal pipe carries a smoothly flowing liquid with density 1.25 × 103 kg/m3. At locations 1 and 2 along the pipe the diameters are 6.63 cm and 2.51 cm, respectively. Is the flow speed at location 2 higher or lower than at location 1?
Read DetailsDr. Evil and his henchmen intend to deflect the Moon from its orbit around Earth by pulling it with a force of 3130 N. They plan to accomplish this by placing a mini black hole 6.17 x 106 m from the center of the Moon and letting gravitation do what gravitation does. What must the mass of the mini black hole be for the evil scheme to succeed? The mass of the Moon is 7.36 × 1022kg. G = 6.673 x 10-11 N m2/kg2
Read DetailsA fox locates its prey under the snow by slight sounds rodents make. The fox then leaps straight into the air, and then burrows its nose into the snow to catch its meal. If a fox jumps up to a height of 91 cm, calculate the speed at which the fox leaves the snow, and how long the fox is in the air. Ignore air resistance.
Read DetailsI. Answer the following questions in Spanish: 1. ¿Quién era tu maestro favorito en la escuela primaria? ¿En qué grado estabas y por qué te gustaba? 2. ¿Cuál era tu programa favorito de tele cuando eras niño/a? 3. ¿Qué hacías los fines de semana como niño/a? 4. ¿Cuántos años tenías en 2015 (dos mil quince)? 5. ¿Cuál era tu canción favorita cuando eras niño/a? II. Make a voice recording to record your answers and submit here
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