Electromagntic wave, such as an X-ray.
Explanation:
- Electromagnetic wave does not require any medium to travel. These waves propagate outwards from the source.
- They can travel even through the vacuum of outer space.
- The major source is the sun which emits radiation in the form of the Electromagnetic spectrum.
- These waves travel through oscillating electrical and magnetic fields generated by the oscillating charged particles.
- These waves oscillate in the perpendicular direction of planes concerning each other and are in form.
- Electromagnetic waves travel at speed of light.
The answer is the last one because:
- One has three sides and the other has four which doesn't makes it equal.
- One has three vertices and the other has four vertices.
- Obtuse is an angle greater than 90° but less than 180°, so it doesn't have an obtuse angle.
- Yes, it has one right angle each.
What’s the website? I can help you once I receive that information
Answer:
This week was chosen because it coincided with the birthday of Abraham Lincoln on February 12 and of Frederick Douglass on February 14, both of which dates black communities had celebrated together since the late 19th century.
Explanation:
On Feb. 2, 1990, in a dramatic concession to South Africa's Black majority, President F.W. de Klerk lifted a ban on the African National Congress and promised to free Nelson Mandela. In 1653, New Amsterdam — now New York City — was incorporated. [Most read] Health experts say not to hold out for a certain vaccine.
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