on April 23, 2022
What are some fun facts about black holes?
Space and Astronomy10 Fun Facts About Black Holes You Can’t Directly See a Black Hole. … Our Milky Way Probably Has a Black Hole. … Dying Stars Lead to Stellar Black Holes. … There are Three Categories of Black Holes. … Black Holes Are Funky. … The First Black Hole Wasn’t Discovered Until X-Ray Astronomy was Used.
on April 23, 2022
Which planet has the largest radius?
Space and AstronomyJupiterJupiter is the largest of all the planets. It has a radius of 71,492 kilometers at the equator and a radius of 66,854 kilometers at the poles. What is the smallest planet radius? Now that Pluto is no longer classified as a planet, Mercury, the closest planet to the Sun, is the smallest planet with
on April 23, 2022
What is optical activity in stereochemistry?
Space and AstronomyChapter 7 : Stereochemistry Optical Activity. Optical activity is the ability of a chiral molecule to rotate the plane of plane-polairsed light, measured using a polarimeter. A simple polarimeter consists of a light source, polarising lens, sample tube and analysing lens. What is meant by optical activity? optical activity, the ability of a substance to
on April 23, 2022
What is a figure that has no endpoints?
Space and AstronomyA line segment has two endpoints. A line has no end point. A line-segment has a definite length. What figure has two endpoints? line segment A line segment is a part of a line that has two defined endpoints. A line segment represents a collection of points inside the endpoints and it is named by
on April 23, 2022
What is a caliper in a car?
Space and AstronomyA caliper is part of the disc brake system, the type most cars have in their front brakes. The brake caliper houses your car’s brake pads and pistons. Its job is to slow the car’s wheels by creating friction with the brake rotors. How much does it cost to replace calipers? Front calipers cost between
on April 23, 2022
Can all Quadrilaterals can be inscribed in circles?
Space and AstronomyNot all quadrilaterals can be inscribed in circles and so not all quadrilaterals are cyclic quadrilaterals. A quadrilateral is cyclic if and only if its opposite angles are supplementary. Which quadrilaterals can always be inscribed in a circle? Cyclic QuadrilateralsA cyclic quadrilateral is a quadrilateral that can be inscribed in a circle. Which quadrilaterals Cannot
on April 23, 2022
Is a square Sometimes a rhombus?
Space and AstronomySince rhombuses are quadrilaterals with 4 congruent sides, squares are by definition also rhombuses. 5. A parallelogram is a rectangle. Can a square be a rhombus True or false? A rhombus is a quadrilateral with all sides equal in length. A square is a quadrilateral with all sides equal in length and all interior angles
on April 23, 2022
What is the formula of area of 4 walls?
Space and AstronomyThe area A of four walls of a room of length l, breadth b and height h is given by the formula A=2(l+b)h. What is the formula for area of walls? To calculate the area of a wall, use the standard formula of Length x Width = Area. Next, use the same formula to record
on April 23, 2022
How do you find area in square units?
Space and AstronomyHow do you find the unit area? Area is the amount of surface a two-dimensional shape can cover, measured in square units. The SI unit of area is the square meter (m2), which is a derived unit. Common Units of Area 100 cm2 = 1 square decimeter (dm2) 100 dm2 = 1 square meter (m2)
on April 23, 2022
How do you adjust the moon phase on a watch?
Space and AstronomyHow accurate are moon phase watches? Most of our moon-phase displays are 99.998 per cent accurate, so if the watch runs without interruption, a correction by one day is only needed when 122.6 years have elapsed. This is achieved with an ingenious mechanical transmission that steps down the rotation of the hour wheel. What is