Physics, 01.09.2019 07:30 ninaaforever
In what ways are sound waves and electromagnetic waves different?
a. they travel at the same speed
b. electromagnetic waves have a frequency but not a wavelength
c. sound waves have frequency but not wavelength
d. sound waves have wavelength but not frequency.
Answers: 1
Physics, 21.06.2019 14:40
Using the given data table, calculate the acceleration of the skateboarder. you can use either form of the equation below?
Answers: 2
Physics, 21.06.2019 16:30
In which scenario is the least amount of work done on a crate? a force of 120 n moves it 25 m. a force of 115 n moves it 26 m. a force of 130 n moves it 22 m. a force of 125 n moves it 27 m.
Answers: 1
Physics, 22.06.2019 03:50
Three different objects, all with different masses, are initially at rest at the bottom of a set of steps. each step is of uniform height . the mass of each object is a multiple of the base mass : object 1 has mass 4..00m , object 2 has mass 1..96m , and object 3 has mass . when the objects are at the bottom of the steps, define the total gravitational potential energy of the three-object system to be zero. if the objects are then relocated as shown, what is the new total potential energy of the system? each answer requires the numerical coefficient to an algebraic expression. each algebraic expression is given using some combination of the variables , , and , where is the acceleration due to gravity. enter only the numerical coefficient. (example: if the answer is 1..23mgd , just enter 1.23)
Answers: 3
In what ways are sound waves and electromagnetic waves different?
a. they travel at the same...
a. they travel at the same...
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