What are the two main sources of electromagnetic radiation? Examples of EM radiation include radio waves and microwaves, as well as infrared, ultraviolet, gamma, and x-rays. Some sources of EM radiation include sources in the cosmos (e.g., the sun and stars), radioactive elements, and manufactured devices. Why is it called an electromagnetic wave? Electromagnetic waves […]
Is Quadrant 3 positive or negative?
Is Quadrant 3 positive or negative? In Quadrant I, both the x– and y-coordinates are positive; in Quadrant II, the x-coordinate is negative, but the y-coordinate is positive; in Quadrant III both are negative; and in Quadrant IV, x is positive but y is negative. Why is tan positive quadrant 3? for angles with their […]
What is the theory of punctuated equilibrium and why is it important?
What is the theory of punctuated equilibrium and why is it important? The theory holds that species originate too rapidly to enable their origins to be traced by paleontologists (punctuation), and then persist unchanged through geological time in stasis (equilibrium). All is due to a mysterious shared homeostasis that is postulated to regulate the collective […]
Which axis of an ellipse is always shorter?
What is non inertial frame of reference examples?
What is non inertial frame of reference examples? In such a frame of reference, Newton’s laws of motion take the form given in Dynamics: Newton’s Laws of Motion The car is a non-inertial frame of reference because it is accelerated to the side. The force to the left sensed by car passengers is a fictitious […]
What is Einstein theory of specific heat?
What is Einstein theory of specific heat? A theory of the specific heat of solids proposed by Albert Einstein in 1906. In this theory, Einstein attributed the specific heat of solids to the vibrations of the solid and made the simplifying assumption that all the vibrations have the same frequency. How do you calculate Debye […]
Does V1 change on a wet runway?
Does V1 change on a wet runway? For dry and wet runways, V1 is mostly calculated to match accelerate–stop and accelerate–go distances. Dry runway calculations typically result in a V1 equal, or close, to VR. Wet runway calculations typically result in a lower V1 with a speed gap to VR. How does a wet runway […]
What colors absorb the most sunlight?
What colors absorb the most sunlight? Obviously the black strip absorbed the most. But the red, blue, and green ones did not absorb much. Are UPF shirts worth it? Clothing with a UPF rating isn’t necessary for many people. But for those who really need protection from the sun, it gives a level of certainty. […]
What will be the velocity of a ball thrown vertically upwards when it reaches the maximum height?
What will be the velocity of a ball thrown vertically upwards when it reaches the maximum height? Therefore, at maximum altitude the velocity of the ball must be zero. Question: A ball thrown vertically upward reaches a maximum height of 30 meters above the surface of Earth. At its maximum height, the speed of the […]
Can you get sick from old vegetable oil?
Can you get sick from old vegetable oil? Using any rancid oil can lead to serious health hazards. In addition to having strange flavors and odors, it contains carcinogenic free radicals. These pesky molecules are then absorbed into the foods the oil is added to. And we all know avoiding free radicals is just good […]