What are the causes of echo? Echoes. An echo is a sound that is repeated because the sound waves are reflected back. Sound waves can bounce off smooth, hard objects in the same way as a rubber ball bounces off the ground. Although the direction of the sound changes, the echo sounds the same as […]
What do electrical and thermal conductors have in common?
What do electrical and thermal conductors have in common? Usually, electrical conductors have loosely bound electrons. Materials that conduct heat are thermal conductors. Metals typically conduct both heat and electricity. Carbon conducts ​electricity as graphite, but insulates as diamond, so the form or allotrope of a material can be important. What characteristics of metal make […]
Does freezing absorb or release energy?
Does freezing absorb or release energy? During freezing, the temperature of a substance remains constant while the particles in the liquid form a crystalline solid. Because particles in a liquid have more energy than particles in a solid, energy is released during freezing. This energy is released into the surroundings. What happens to energy being […]
What is the healthiest blood type?
What is the healthiest blood type? Of the eight main blood types, people with type O have the lowest risk for heart disease. People with types AB and B are at the greatest risk, which could be a result of higher rates of inflammation for these blood types. A heart-healthy lifestyle is particularly important for […]
What are the four steps of contraction?
What are the four steps of contraction? Terms in this set (6) Step 1: Contraction Cycle Begins. Begins with the arrival of calcium ions within the zone of overlap. Step 2: Active-Site Exposure. Step 3: Cross-Bridge Formation. Step 4: Myosin Head Pivoting. Step 5: Cross-Bridge Detachment. Step 6: Myosin Reactivation. What is the best example […]
At what distance is a star if it has a parallax of 1 arcsecond?
How power is shared between central and state government in federalism?
How power is shared between central and state government in federalism? The division of power between the Central and State Governments is done in a three fold distribution of legislative powers between the Union Government and the State Government. There are three lists i.e. Union List, State List and Concurrent List. How should power be […]
How two of the human organ systems help maintain homeostasis?
How two of the human organ systems help maintain homeostasis? The endocrine, nervous, and muscular systems work together and maintain temperature homeostasis. Insulin, a hormone released from the pancreas, works with the digestive system and maintains energy homeostasis. Which organs are involved in homeostasis? In mammals, the main organs involved with homeostasis are: The hypothalamus […]
Can a poor person become a pilot?
Is the motion of a body uniform?
Is the motion of a body uniform? In Physics, uniform motion is defined as the motion, wherein the velocity of the body travelling in a straight line remains the same. When the distance travelled by a moving thing, is same at several time intervals, regardless of the time length, the motion is said to be […]