Why does the inner core of Earth remain solid even though it is very hot? The inner core is solid because it is made of very dense, or heavy, materials – like iron and nickel. Even though it is very hot, these materials don’t “melt” very easily, so they stay solid. Answer 3: It turns […]
Which is most important to ensure the largest light collecting power of a telescope?
Which is most important to ensure the largest light collecting power of a telescope? The most important of all the powers of an optical telescope is its light-gathering power. This capacity is strictly a function of the diameter of the clear objective—that is, the aperture—of the telescope. How many times longer than your eye can […]
What are the wrench sizes in order?
What are the wrench sizes in order? Standard American wrench sizes, from the largest to smallest and measured in inches, are 5/8, 19/32, 9/16, 1/2, 7/16, 3/8, 11/32, 5/16, 9/32, 1/4, 7/32, 3/16, 5/32 and 1/8. Wrenches are available in a set or individually. A small set has six to 10 wrenches, ranging from 5/16 […]
What is the purpose of the iodine clock reaction?
What is the purpose of the iodine clock reaction? The “clock reaction” is a reaction famous for its dramatic colorless-to-blue color change, and is often used in chemistry courses to explore the rate at which reactions take place. The color change occurs when I2 reacts with starch to form a dark blue iodine/starch complex. Why […]
Why do most students prefer last minute?
Why do most students prefer last minute? Why students study last minute Procrastination and the perception that they perform better under pressure and cramming “just works better for them”, was also among the top reasons for last-minute study habits. Is it good to study last minute? The last 24 hours before an exam can be […]
Why is water solubility important to life?
Why is water solubility important to life? Water is called the “universal solvent” because it is capable of dissolving more substances than any other liquid. This is important to every living thing on earth. It means that wherever water goes, either through the air, the ground, or through our bodies, it takes along valuable chemicals, […]
Is the image in a mirror real or virtual?
Is the image in a mirror real or virtual? Key Points Reflected images can be either real or virtual. In a plane mirror, the images are virtual. The virtual images in a plane mirror have a left-right inversion. Why are real images always inverted? Real image is found when the rays of light converge at […]
What are the dangers of space?
What are the dangers of space? 5 Hazards of Human Spaceflight Radiation. Isolation and confinement. Distance from Earth. Gravity (or lack thereof) Hostile/closed environments. Human research essential to space exploration. Do animals know God? There is no evidence that any non-human animals believe in God or gods, pray, worship, have any notion of metaphysics, create […]
What is the Dyson motor called?
What is the Dyson motor called? Dyson digital motor Does Dyson use brushless motor? The Dyson digital motor V4 is a brushless DC motor – with a lot of on-demand power. Brushless motors can offer great amounts of torque per watt and reduce wear and tear. The most incredible thing is the speed it can […]
How fast can an object fall in water?
How fast can an object fall in water? 5.04 m/s How ripples are formed? Formation. Symmetrical ripples form as water molecules oscillate in small circles. The water molecules continue to do this to a depth equal to 1/2 the wavelength. The water molecule traveling in a circular pattern interacts with the sediment on the floor […]