Write a 2-3 paragraph summary on waves that includes the following: mechanical waves, electromagnetic waves, and the comparison of mechanical and electromagnetic waves (similarities and differences). Include the vocabulary words: wavelength, frequency, energy, and amplitude
Answers: 1
Physics, 21.06.2019 19:40
You carry a 7.0-kg bag of groceries 1.2 m above the ground at constant speed across a 2.7m room. how much work do you do on the bag in the process? (a) 157j (b) 0.00j (c) 185j (d) 82j
Answers: 2
Physics, 22.06.2019 23:00
Determine the force the sun exerts on an object with a mass of 80.0 kg if that object is on the earth. what is the force exerted by the moon on the same object? what is the force the earth exerts on it?
Answers: 1
Physics, 22.06.2019 23:40
To place a communications satellite into a geosynchronous orbit at an altitude of 22,240 mi above the surface of the earth, the satellite first is released from a space shuttle , which is in a circular orbit at an altitude of 185 mi, and then is propelled by an upper-stage booster to its final altitude. as the satellite passes through a, the booster's motor is fired to insert the satellite into an elliptic transfer orbit. the booster is again fired at b to insert the satellite into a geosynchronous orbit. knowing that the second firing increases the speed of the satellite by 4810ft/s, determine (a.) the speed of the satellite as it approaches b on the elliptic transfer orbit, (b.) the increase in speed resulting from the first firing at a.
Answers: 2
Physics, 23.06.2019 00:00
Three resistors are connected in series across a 15-v power supply. if the potential drops across resistors 1 and 2 are 4.1 volts and 3.1 volts, what is the exact potential drop (in volts) across resistor 3?
Answers: 2
Write a 2-3 paragraph summary on waves that includes the following: mechanical waves, electromagneti...
Social Studies, 09.12.2020 20:30
Spanish, 09.12.2020 20:30
Mathematics, 09.12.2020 20:30
Mathematics, 09.12.2020 20:30
English, 09.12.2020 20:30
Mathematics, 09.12.2020 20:30
English, 09.12.2020 20:30
Mathematics, 09.12.2020 20:30
Mathematics, 09.12.2020 20:30
Mathematics, 09.12.2020 20:30
Mathematics, 09.12.2020 20:30
SAT, 09.12.2020 20:30
Social Studies, 09.12.2020 20:30