Answer:
25,300,000,000,000 miles away
Answer: Letter X in the diagram represent the angle of incidence
Explanation: One of the properties of wave is reflection. But before reflection can occur, there must have been a directed motion of wave particle towards a plane surface. The angle of incidence is the angle between the direction of motion of the wave particle ( for example; light) and the normal to the plane surface.
Answer:
they store information
Explanation:
Information are encoded on the magnetic part of a hard drive and the strip of a credit card.
- On the drive, series of magnetic fields are used to encode information.
- The data is stored in form of zeros and ones.
- A credit card has a magnetic strip where information is encoded.
- The stripe provides a readability function for electronic devices.
The speed with which Jennifer climb up the tree is 0.45 m/s
The distance is 10m
Time is 22 seconds
Required speed is 10/22=0.45 m/s
- Distance is the total length travelled by an object.
- Speed is distance upon time.
- It is a scalar quantity and doesn't has magnitude and direction.
- Distance traveled is the total length of the path traveled between two positions
- Distance is the total movement of an object without any regard to direction.
- Distance is the total movement of an object without any regard to direction.
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Using the momentum formula p=mv, it can be determined that v=p/m. Therefore 1000/2.5 = 400. The object is going 400m/s
