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Katen [24]
3 years ago
11

which statement about waves is false? a. waves transfer matter b. waves can change direction c. waves can interact with each oth

er d. waves can transfer energy to matter
Physics
1 answer:
satela [25.4K]3 years ago
8 0

A.

Waves can transfer energy but they can’t transfer matter

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The most important barriers to diffusion today are physical features of Earth's surface.
nikdorinn [45]

Answer:

False

Explanation:

Physical features of earth's surface like mountains, deserts and oceans are not the barriers in today's modern world. Technological improvements in the transportation and communication has removed these barriers. So they are not barriers anymore.

7 0
3 years ago
How is velocity affected when balanced forces act on an object?
MrRissso [65]
When the forces acting on a body are balanced, their effect
\on the body's motion is the same as if no forces at all are
acting on it, and its velocity can't change.  It continues moving
in a straight line at constant speed (which may be zero).
8 0
3 years ago
What are flask used for primarily in the lab
Vlad [161]
To measure the fluids that you will be using such as water or other chemicals if your mixing them and they have to be precise measurements
6 0
3 years ago
Que es la expansión del universo?
anastassius [24]

Answer:

La expansión no es más que el incremento con el tiempo de la distancia entre cualquier par de galaxias lejanas. Se suele utilizar para representar este hecho la analogía de un globo donde hemos pintado una serie de puntos a modo de galaxias.

Explanation:

3 0
3 years ago
What from the following list of statements about vectors is definitely true? (section 3.3) The magnitude of a vector can be smal
Mashcka [7]

Answer:

"Magnitude of a vector can be zero only if all components of a vector are zero."

Explanation:

"The magnitude of a vector can be smaller than length of one of its components."

Wrong, the magnitude of a vector is at least equal to the length of a component. This is because of the Pythagoras theorem. It can never be smaller.

"Magnitude of a vector is positive if it is directed in +x and negative if is is directed in -X direction."

False. Magnitude of a vector is always positive.

"Magnitude of a vector can be zero if only one of components is zero."

Wrong. For the magnitude of a vector to be zero, all components must be zero.

"If vector A has bigger component along x direction than vector B, it immediately means, the vector A has bigger magnitude than vector B."

Wrong. The magnitude of a vector depends on all components, not only the X component.

"Magnitude of a vector can be zero only if all components of a vector are zero."

True.

6 0
3 years ago
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