When a wave strikes a boundary between two media, reflection, transmission, or absorption can occur. A wave that undergoes may be refracted. reflection
transmission
absorption
A.
II and III only
B.
I, II, and III
C.
I only
D.
II only

Could anyone help me find the answer?

James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the

The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.

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