How much is a curie of radiation? One curie (1 Ci) is equal to 3.7 × 1010 radioactive decays per second, which is roughly the amount of decays that occur in 1 gram of radium per second and is 3.7 × 1010 becquerels (Bq). In 1975 the becquerel replaced the curie as the official radiation […]
What is an acid or a base?
What are the five major types of complementary and alternative medicine?
What are the five major types of complementary and alternative medicine? Complementary or alternative medicine can be classified into five major categories of practice: Whole medical systems. Mind-body techniques. Biologically based practices. Manipulative and body-based therapies. Energy therapies. Which of the following is a good way to choose a primary care physician? Five tips for […]
Why is LPG better than wood for fuel?
Why is LPG better than wood for fuel? (b) LPG has more calorific value and produces no pollution. So it is better domestic fuel than wood. (c) The ignition temperature of paper is less, so it catches fire easily. It does not catch fire when wrapped around aluminium pipe because aluminium absorbs the heat, so […]
Which two networks can be used for impedance matching?
Which two networks can be used for impedance matching? An article about how to design basic impedance matching networks using the pi and T-networks for improved selectivity. The L-network is a real workhorse impedance-matching circuit (see “Back to Basics: Impedance Matching (Part 2)” ). Is rg6 50 or 75 ohm? So a 50 Ohm cable […]
Is memory foam cancerous?
Is memory foam cancerous? Also, despite the fact that some of the chemicals that cause mattress off-gassing odors are classified as carcinogens or potential carcinogens, no studies have shown memory foam is toxic or causes cancer. What mattress do astronauts use? The Tempur-Pedic® /NASA Story The material, if successful, would significantly reduce the effects of […]
What is the angular velocity of the minute hand on a clock?
Is Colour change a physical or chemical property?
Is Colour change a physical or chemical property? Color. The changing of color of a substance is not necessarily an indicator of a chemical change. For example, changing the color of a metal does not change its physical properties. However, in a chemical reaction, a color change is usually an indicator that a reaction is […]
What transverse wave has the shortest wavelength?
What transverse wave has the shortest wavelength? violet light Are light waves transverse? Transverse wave, motion in which all points on a wave oscillate along paths at right angles to the direction of the wave’s advance. Surface ripples on water, seismic S (secondary) waves, and electromagnetic (e.g., radio and light) waves are examples of transverse […]
Do resistors have a positive and negative side?
Do resistors have a positive and negative side? Resistors don’t care which leg is connected to positive or negative. The + means where the positive or red probe of the volt meter is to be placed in order to get a positive reading. This is called the “positive charge” flow sign convention. Does it matter […]