Answers created by Reyan Roberth

• Back to user's profile
• Next
• What are some examples of electromagnetic induction?
  
• What makes magnets repel or be attracted to other materials?
  
• Why is visible light useful in photosynthesis, while other forms of electromagnetic radiation are not?
  
• A triangle has sides 5cm, 12cm, 13cm. The length of the perpendicular from the opposite vertex to the side whose length is 13cm is?
  
• What is an RC circuit?
  
• What is an electric force?
  
• How to verify the following identity?
  
• Why is angular momentum perpendicular?
  
• Cos^2A+cos^2B-sin^2C=-2cosA.cosB.sinC?
  
• Write any three differences between virus and fungi?
  
• How do you prove that # 2cos^4x + 2sin^2xcos^2x = cos2x + sin^2x+cos^2x #?
  
• How does a convex mirror affect light rays?
  
• How do we represent the magnitude of a vector in physics?
  
• What is the difference between a bulb and a tuber?
  
• When soccer player kicks a ball, the ball accelerates. What causes this acceleration in terms of forces?
  
• How can I calculate the magnitude of vectors?
  
• What electric charge does an antiproton have?
  
• What functional group stabilizes a protein structure?
  
• What are convex mirrors used for?
  
• What boson carries the Weak force?
  
• How does phenol differ from benzene?
  
• Why are alkenes important?
  
• cos x + cos2 x = 1, then sin8 x + 2 sin6 x + sin4 x =?
  
• What is the moment of inertia of a pendulum with a mass of #2 kg# that is #3 m# from the pivot?
  
• Why is speed classified as a scalar quantity and velocity classified as a vector quantity?
  
• What is the bleeder current?
  
• A Cabbage Palmetto has a height of 80 feet. What is the approximate height of the tree in meters?
  
• How do you simplify #(x/y - y/x)/(1/y + 1/x)# and can you use a calculator to simplify?
  
• What is the height of the tower to the nearest metre?
  
• How do you identify whether a functional group is acidic or basic? For example, which of these functional groups are acidic and which are basic? - Hydroxyl - Carbonyl - Carboxyl - Amino - Sulfhydryl - Phosphate
  
• Prove that sec^4-cos^4=1-2cos^2 ?
  
• How many stars can be found in an average open cluster?
  
• A box of mass 2.5 kg is lifted from the floor to a shelf 3.0 metres above the floor. How much work is done?
  
• You answered my question as yes someone answered no . I need correct answer for the question is kilometer is SI unit of length?
  
• What are some common mistakes students make with units of measurement?
  
• Where does cellular respiration occur?
  
• How do you simplify the expression #-(sin^2x+cos^2x)#?
  
• What is another name of first law of motion?and why is it given that name?thank you so much
  
• Can u please explain red giant,white dwarf,quasars and black hole?
  
• Why is benzene dangerous?
  
• Is HCl a Lewis acid?
  
• What composition of the Sun, its relationship to other stars, and some effects of its radiation on Earth's weather?
  
• The dendrite carries impulses? a) towards the cyton b) away from cyton c) across the body d) from one neuron to another
  
• How do you solve #y- 9y = - 16- 64#?
  
• What covalent compound is P4S5?
  
• An element which is an example for both organic and inorganic chemistry?
  
• Differentiate between alkane, alkyne, alkene and alkyl ? Give at least 3 major differences of them.
  
• What are some common mistakes students make with Newton's second law?
  
• What is the importance of the atmosphere?
  
• What are the 6 models of the atom?
  
• What does alkyl mean?
  
• What are globular clusters?
  
• How do you measure the parallax angle of a star?
  
• How are gamma ray bursts classified?
  
• What is an elastic collision?
  
• What is atomic mass?
  
• In a right triangle ABC with angle A equal to 90o, find angle B and C so that sin(B) = cos(B). ?
  
• What is an antibiotic?
  
• What are alkenes and alkynes used for?
  
• Why do objects in free fall appear to be weightless?
  
• How is total internal reflection related to the critical angle?
  
• Why are ketones bad?
  
• What is an example of a ketone?
  
• Why is chloride important in water?
  
• How is a single bond represented in a drawn structure?
  
• What are the limitations of Infrared Spectroscopy?
  
• Properties of triangles?
  
• What is the role of humans in resource development?
  
• What separates the heart chambers?
  
• What are the nonmetals in group 16 of the perodic table?
  
• What property of nonmetals is the opposite of malleable and ductile?
  
• How long is the distance from earth to pluto?
  
• Why is ionic bonding important?
  
• What are ionic bonds?
  
• Why is glucose soluble in water but cyclohexane is not?
  
• Why are functional groups important?
  
• What is the process that forms large organic molecules?
  
• What is latitude?
  
• Describe how a rock can form by evaporation. What type of rock is it?
  
• Mass extinctions of marine species are believed to have been caused by which event?
  
• What is spectroscopic parallax?
  
• What is the stronger base: ammonia or ethoxide ion?
  
• What happens when Dry leaves are burnt?
  
• Why do galaxies form clusters?
  
• How and why does the sun's magnetic field flip?
  
• What is nucleosynthesis? How does it provide evidence to support the Big Bang Theory?
  
• What is the nearest galaxy?
  
• What are nuclear fusion reactions?
  
• What is plasma? How does it relate to the structure of a star?
  
• What is the role of physics in our daily life routine?
  
• Write any three properties of heating coil used in a room heater ?
  
• What is bioaccumulation?
  
• Why is skeletal muscle called voluntary muscle?
  
• Discuss the relationship between cells, tissues , organs and organ system ?
  
• What are the diseases caused by pollution?
  
• How does development differ from evolution?
  
• Who won the Nobel Peace Prize in 1906? Why?
  
• What color is the sun's photosphere?
  
• What is the life cycle of a black hole?
  
• Next