What forces act on a still object? Force is defined as a push or pull acting on an object. Forces include gravity, friction, and applied force. Force causes changes in the speed or direction of motion. These changes are called acceleration. What forces can change the shape of an object? When a force acts on […]
What color flame is srcl2?
What color flame is srcl2? Flame colorants Color Chemical Red Strontium chloride or strontium nitrate Orange Calcium chloride Yellow-green Barium chloride Orange-yellow Sodium chloride (table salt) Can you burn calcium chloride? Calcium chloride is classified as an “irritant”. This means that is causes symptoms ranging from swelling and pain to burns. When you heat calcium […]
Do gamma rays travel faster than light?
Do gamma rays travel faster than light? Although the energy inherent to light is quantized into discrete energy packets (a.k.a., photons), there are some properties shared by all forms of light. Light of any wavelength, from picometer-wavelength gamma-rays to radio waves more than a trillion times longer, all move at the speed of light in […]
Which principle is used in rocket?
Which principle is used in rocket? The propulsion of all rockets, jet engines, deflating balloons, and even squids and octopuses is explained by the same physical principle—Newton’s third law of motion. Matter is forcefully ejected from a system, producing an equal and opposite reaction on what remains. Another common example is the recoil of a […]
What is advertisement example?
What is advertisement example? Types Of Advertising Examples of above the line advertising are TV, radio, & newspaper advertisements. Below the line advertising include conversion focused activities which are directed towards a specific target group. Examples of below the line advertising are billboards, sponsorships, in-store advertising, etc. What is the best source of advertisement? You’ll […]
What are the factors that affects air pressure?
What are the factors that affects air pressure? Discuss the factors affecting atmospheric pressure with respect to the following: Temperature Altitude Rotation of the Earth Temperature. Altitude. Rotation of the Earth. What are examples of external factors? External factors political – For example, new legislation. economic – For example, inflation and unemployment. social – Changes […]
How can you make it safe to exercise on a hot day?
How can you make it safe to exercise on a hot day? Stay safe during hot-weather exercise by drinking enough fluids, wearing proper clothing and timing your workout to avoid extreme heat. Whether you’re running, playing a pickup game of basketball or going for a power walk, take care when the temperature rises. Why is […]
What 4 elements at room temperature can become permanently magnetized?
What 4 elements at room temperature can become permanently magnetized? There are only four elements in the world that are ferromagnetic at room temperature and can become permanently magnetized: iron, nickel, cobalt and gadolinium. (A fifth element, dysprosium, becomes ferromagnetic at low temperatures.) What happens when a watch is magnetized? Magnetization is a particular problem […]
What are the 2 different types of crust?
What are the 2 different types of crust? Earth’s crust is divided into two types: oceanic crust and continental crust. The transition zone between these two types of crust is sometimes called the Conrad discontinuity. Silicates (mostly compounds made of silicon and oxygen) are the most abundant rocks and minerals in both oceanic and continental […]
What are the major components of a projectile motion?
What are the major components of a projectile motion? There are the two components of the projectile’s motion – horizontal and vertical motion. And since perpendicular components of motion are independent of each other, these two components of motion can (and must) be discussed separately. What is the vertical component of the velocity just before […]