What is the 4 types of galaxies? In 1936, Hubble debuted a way to classify galaxies, grouping them into four main types: spiral galaxies, lenticular galaxies, elliptical galaxies, and irregular galaxies. Can you identify a galaxy? Astronomer Edwin Hubble, after whom the space telescope is named, classified galaxies according to shape. The Hubble scale chart […]
Who used the radial pulse of Cepheid star to measure the distance of the star from Earth?
Who used the radial pulse of Cepheid star to measure the distance of the star from Earth? Leavitt Why are there two dips in the Lightcurve in each period? During eclipses of either star, two sharp dips are observed in the light curve. The dips in brightness are caused by the combined areas during the […]
What is the aim of sustainable development?
What is the aim of sustainable development? The aim of sustainable development is to balance our economic, environmental and social needs, allowing prosperity for now and future generations. Why is sustainable development important in points? Sustainable development encourages us to conserve and enhance our resource base, by gradually changing the ways in which we develop […]
What is the force required to produce an acceleration of 9.8m S² on a body of mass 1kg?
What is the force required to produce an acceleration of 9.8m S² on a body of mass 1kg? Answer. Explanation: gravitationalgravitational force is a force required to produce an acceleration of 9.8 metre per second square on a body of weight 9.8 Newton . How much acceleration is gained by a body of mass 2 […]
What is formed when two or more electrons are transferred from one atom to another?
What is formed when two or more electrons are transferred from one atom to another? In ionic bonding, electrons are completely transferred from one atom to another. In the process of either losing or gaining negatively charged electrons, the reacting atoms form ions. The oppositely charged ions are attracted to each other by electrostatic forces, […]
What are 2 factors which the maximum kinetic energy of the emitted photoelectrons depends upon?
What are 2 factors which the maximum kinetic energy of the emitted photoelectrons depends upon? The two factors affecting maximum kinetic energy of photoelectrons are the frequency of the incident radiation and the material on the surface. Does kinetic energy depend on intensity? (a) The kinetic energy of any single emitted electron increases linearly with […]
Can you paint anchor chain?
Does wrapping your phone in aluminum foil block signal?
Does wrapping your phone in aluminum foil block signal? A cell phone, wrapped in a layer of aluminum foil, cannot receive calls. The foil, an electrical conductor, creates a barrier called a Faraday Cage around the phone, blocking the radio signals on which it operates. How do I block a GPS signal? Using GPS blocker […]
What is an L restriction?
What is an L restriction? An L restriction prohibits the the operation of a vehicle with a full air brake system. If the skills test isn’t taken with a full air brake system, air brake systems aren’t properly checked, or air brake system components aren’t properly identified, an L restriction will be issued. What is […]
How is glucose used for energy?
How is glucose used for energy? After a meal, the blood sugar (glucose) level rises as carbohydrate is digested. This signals the beta cells of the pancreas to release insulin into the bloodstream. Insulin helps glucose enter the body’s cells to be used for energy. Does glucose give instant energy? It is directly absorbed into […]