Physics, 05.10.2021 09:20, Stevencriollo6838
Mark each statement as to whether it pertains to electromagnetic waves, mechanical waves, all waves, or no waves (false). Group of answer choices Can be Doppler shifted, reflected, refracted, diffracted, and can undergo constructive and destructive interference. [ Choose ] Consist of oscillating electric and magnetic fields. [ Choose ] Examples are sound, water, and vibrating guitar strings. [ Choose ] Wavelength is called pitch. [ Choose ] The frequency determines how energetic the photons are.
Answers: 1
Physics, 22.06.2019 10:00, autumnskye1
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 3
Physics, 22.06.2019 18:30, okitsfrizz6366
Ahot-air balloon is 11.0 m above the ground and rising at a speed of 7.00 m/s. a ball is thrown horizontally from the balloon basket at a speed of 9.00 m/s. ignore friction and air resistance and find the speed of the ball when it strikes the ground.
Answers: 1
Physics, 22.06.2019 23:20, pr47723
Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above
Answers: 2
Physics, 23.06.2019 01:00, dlaskey646
7types of electromagnetic waves from lowest to highest frequency
Answers: 3
Mark each statement as to whether it pertains to electromagnetic waves, mechanical waves, all waves,...
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