Explanation:
wave is a disturbance that carries energy from one particle to another particle. The speed depends on:
1. The type of medium
2. The temperature of the medium
3. The energy of the wave
4. The amplitude of the wave
Projection
the representation of a three-dimensional earth onto a two-dimensional plane or map.
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Answer:
metal
Explanation:
sound can travel best in materials with higher elastic properties like metal than it can through other solids like plastic or rubber which have lower elastic properties
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Answer:
The answer is 18 N.
Explanation:
A force can be divided into components x and y components. The component along the x-axis is called the horizontal component and along the y-axis is called the vertical component. In this case, as the force is in a horizontal direction and is also known as x-component of force. The x- component of force is
Fx = Fcosθ
Fx = 22(cos 35°)
Fx = 22 x 0.819
Fx = 18 N
Child's horizontal pull forces are equal to that of frictional resistance force on the wagon.