What is the amount of heat required to raise the temperature of 1 gram of water from 14.50 C to 15.50 C? One calorie What is the amount of energy needed to raise the temperature of 2 kilograms of water from 14.5 C to 15.5 C? Thus the “15° calorie” (also called the gram-calorie, or […]
What happens when a ray of light strikes the surface of separation between the two media at right angle?
What happens when a ray of light strikes the surface of separation between the two media at right angle? What happens when a ray of light strikes the surface of separation between the two media at right angle? When light enters the boundary of two surfaces at right it passes normally without deviation. This is […]
What is a pulley system in physics?
What is a pulley system in physics? Pulleys are mechanisms compost by wheel and rope used to lift heavy objects onto tall heights. They change the direction of an applied force and they can even reduce the force needed to lift a weight. Pulleys systems are common used in constructions. What is the tension formula? […]
What is a good crop productivity index?
What is a good crop productivity index? CSR2 ranges from 5 (least productive) to 100 (most productive). CSR2 lets farmers and landowners easily compare productivity across farms. For example, a farm with an average CSR2 of 85 is significantly more productive than one with an average CSR2 of 60. How do you define productivity? Productivity […]
Which kind of investigations allow for the control of variables?
Which kind of investigations allow for the control of variables? Answer Expert Verified An experimental investigation allows you to control the variables. Explanation: Experimental investigations include a method in which a “fair test” is created and variables are actively planned, managed, and measured in an attempt to gather testimony to confirm or negate a causal […]
What are the different type of measurement?
What are the different type of measurement? The four scales of measurement Nominal scale of measurement. The nominal scale of measurement defines the identity property of data. Ordinal scale of measurement. The ordinal scale defines data that is placed in a specific order. Interval scale of measurement. Ratio scale of measurement. What is the difference […]
What causes a vortex in water?
What are the extreme conditions of space?
What are the extreme conditions of space? Extreme conditions in the ISS space environment include exposure to extreme heat and cold cycling, ultra-vacuum, atomic oxygen, and high energy radiation. What organisms can live in extreme conditions? Most extremophiles are microorganisms (and a high proportion of these are archaea), but this group also includes eukaryotes such […]
What constellations are visible in both hemispheres?
What constellations are visible in both hemispheres? Constellations such as Orion may be seen in both hemispheres, depending on your distance from the equator and the time of year. If you can’t see the entire constellation, it’s likely too close to the horizon line and are too far north or south for complete viewing. Are […]
What are three non-sampling errors?
What are three non-sampling errors? Non-sampling errors include non-response errors, coverage errors, interview errors, and processing errors. A coverage error would occur, for example, if a person were counted twice in a survey, or their answers were duplicated on the survey. What are examples of non-sampling errors? Any error or inaccuracies caused by factors other […]