on April 23, 2022
How do water bottle rockets work?
Space and AstronomyThe air pressure inside builds up and pushes on the water. But friction holds the cork in place and that pushes back on the water, so for a while nothing moves. Once the friction force can no longer contain the pressure, the cork is shoved out and the pressure then acts on the water to
on April 23, 2022
How did Kepler contribute to astronomy?
Space and AstronomyJohannes Kepler, (born December 27, 1571, Weil der Stadt, Württemberg [Germany]—died November 15, 1630, Regensburg), German astronomer who discovered three major laws of planetary motion, conventionally designated as follows: (1) the planets move in elliptical orbits with the Sun at one focus; (2) the time necessary to … How did Kepler discover contribute to astronomy?
on April 23, 2022
What is the exact value of tan degrees?
Space and AstronomyTan 30 degrees is also represented by tan π/6 in terms of radians. The exact value of tan 30° is 0.57735.… MATHS Related Links Tan 0 Degree Trigonometric Identities Tan 60 Degree Tan 90 Degree Why is tan 30 degrees? It has to form a 30° angle with the positive x-axis. The tan of 30
on April 23, 2022
Can calla lilies grow in Zone 5?
Space and AstronomyShade and Sun: In warm climates, calla lilies grow well in full sun or partial shade. In cooler areas they grow best in full sun. Zone: Calla lilies are winter hardy in zones 8-10. Can calla lilies survive frost? The plants are sensitive to frost, so wait to plant them until all frost danger is
on April 23, 2022
How long do calla lilies last in a pot?
Space and Astronomyapproximately four monthsapproximately four months in an active state of growth. This includes a period of foliage growth in the first six weeks, followed by six to eight weeks of blooming. After blooming the foliage will begin to yellow and fade, until the plant becomes dormant. Do calla lilies do well in pots? Pots for
on April 23, 2022
How long has Saturn’s storm been going on?
Space and AstronomyKey Points. Saturn’s 30-year storm (or annual storm for Saturn), appeared 10 Earth years earlier than usual, allowing Cassini to study the phenomenon up close during its mission. When was the Saturn storm discovered? The titanic Saturn storms, which stretch across the planet, have erupted on the planet six times since they were first discovered
on April 23, 2022
What is the most common type of star?
Space and AstronomyRed dwarfsRed dwarfs are by far the most common type of star in the Milky Way, at least in the neighborhood of the Sun, but because of their low luminosity, individual red dwarfs cannot be easily observed. From Earth, not one star that fits the stricter definitions of a red dwarf is visible to the
on April 23, 2022
Does dot product give a vector or scalar?
Space and AstronomyThe Dot Product gives a scalar (ordinary number) answer, and is sometimes called the scalar product. But there is also the Cross Product which gives a vector as an answer, and is sometimes called the vector product. Is dot product always scalar? The dot product of two vectors is always a scalar value. For that
on April 23, 2022
What tree is used to make corks?
Space and AstronomyThe Cork Oak TreeCork Oak Tree is found in the Mediterranean (Spain and Portugal.) Laws dictate that a tree must grow for 25-34 years before the first harvest. This is done by a person called an extractor and it is done in a special way to make sure the tree can continue to grow and
on April 23, 2022
How do you describe a line graph in science?
Space and AstronomyA line graph is a graphical display of information that changes continuously over time. Within a line graph, there are various data points connected together by a straight line that reveals a continuous change in the values represented by the data points. How do you describe a scientific graph? Video quote: I was separated into