What is the longest line on a soccer field? side line How high is the crossbar in soccer? Goals are placed at the centre of each goal-line. These consist of two upright posts placed equidistant from the corner flagposts, joined at the top by a horizontal crossbar. The inner edges of the posts must be […]
What are the distinctive features of cardiac muscles?
What are the distinctive features of cardiac muscles? Cardiac muscle is only found in the heart. Its fibers are longer than they are wide, and they are striated, like skeletal muscle fibers. But, unlike skeletal muscle fibers, cardiac muscle fibers have distinct ends to them, called intercalated discs. These are dark lines that run from […]
Which lasts longer PRK or Lasik?
Which lasts longer PRK or Lasik? Because of the corneal surface removal, PRK takes a bit longer (and, unlike LASIK, some minor pain follows). Says Hood: “You’re about 70 percent healed after a week and your vision is about 90 percent healed after a month.” Those who get PRK must also wait at least a […]
How much kinetic energy do you think the ball would have just before it hit the floor?
What is the function of sister chromatids?
What is the function of sister chromatids? The primary function of sister chromatids is to pass on a complete set of chromosomes to all the daughter cells formed as a result of cell division. During mitosis, they are attached to each other through the centromere – a stretch of DNA that forms protein complexes. Is […]
Where the value of g is maximum and minimum?
What happens to kinetic energy if velocity is doubled?
What happens to kinetic energy if velocity is doubled? Hence, when velocity is doubled, kinetic energy becomes 4 times. What is kinetic energy what is its unit derive formula for kinetic energy of an object moving with uniform velocity? In classical mechanics, kinetic energy (KE) is equal to half of an object’s mass (1/2*m) multiplied […]
Why did each gas only show one color when electricity was passed through it?
Why did each gas only show one color when electricity was passed through it? 1 Expert Answer A discharge of energetic electrons through the gas causes collisions of electrons with the gas atoms, resulting in electrons in the gas atoms being excited to higher energy states. The colors just correspond to different frequencies of emitted […]
Which organ is responsible for shivering?
Which organ is responsible for shivering? Located in the posterior hypothalamus near the wall of the third ventricle is an area called the primary motor center for shivering. Is blood pressure positive or negative feedback? Regulation of blood pressure is an example of negative feedback. Blood vessels have sensors called baroreceptors that detect if blood […]
How do you prove that a motion is simple harmonic?
How do you prove that a motion is simple harmonic? For example, let’s say there is mass m mounted between 2 spring with spring constant k1, k2 which are attached to wall and have its original length when system is at equilibrium. When the mass is disturbed slightly by displacement x, the restoring force will […]