Answers created by Ashley H

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• During an isothermal process, 5.0 J of heat is removed from an ideal gas. What is the work done in the process?
  
• A bedridden patient has developed pressure ulcers. Why is protein an important part of the diet to promote wound healing?
  
• If the coefficient of kinetic friction between a 35-kg crate and the floor is 0.30, what horizontal force is required to move the crate at a steady speed across the floor? What horizontal force is required if #mu_k# is zero?
  
• Determine the potential difference VA–VB between points A and B of circuit shown in fig. under what condition is it equal to zero?
  
• When distance is plotted against time on a graph, what does a straight line represent?
  
• A cell has an e.m.f of 1.08 v and an internal resistor of 0.5 ohm. when it is connected in series with resistor of R , the potential difference between the terminals fell to 0.96 v . what was the value of R?
  
• Why is the body temperature maintained at about 37°C?
  
• Do paranasal sinuses open into the oral cavity? Do they enhance the resonance of the voice and lighten the skull?
  
• What is the reason surface tension exists in the alveoli of the lungs?
  
• Which part of brain is responsible for superstition?
  
• A ganglion in the peripheral nervous system can be compared to what in the central nervous system?
  
• What are some examples of prions?
  
• How is the average force of friction calculated?
  
• What is the graph obtained when a body is thrown in upward direction with velocity on y-axis and position of body on x-axis? Also,can you please explain how it is obtained?
  
• Answer It With explanation ?
  
• Show It With Explanation ?
  
• Why do most leaves appear green to the human eye?
  
• Dimensional analysis doubt!!!??
  
• If #(9^(x-2) * 3^(2x-2))/(27^(x+3)) =81, x=?#
  
• A hockey puck is hit on a frozen lake and starts moving with a speed of 12.0 m/s. Exactly 5.0 s later, its speed is 6.0 m/s. What is the puck’s average acceleration, and what is the coefficient of kinetic friction between puck and ice?
  
• What will be the anser?
  
• Foods which increases the only number of rod cells in human eye ?
  
• Q.5 Correct the mistakes if present in the following statements?
  
• Explain how a simple spring is an example of simple harmonic motion?
  
• A cone has a perpendicular height of 12cm and slant height of 13cm . Calculate it's total surface area (take pie r =3.142)?
  
• An egg is thrown horizontally off a roof, which is 60 meters high, with an initial velocity of 6.5 m/s. How long does it take to hit the ground, and how far does it go in the x direction?
  
• What is the ability to do work called?
  
• If an object is moving at #50 m/s# over a surface with a kinetic friction coefficient of #u_k=2 /g#, how far will the object continue to move?
  
• What sound waves can humans hear?
  
• Which is correct ?
  
• Can someone solve question iv? (its the top one)
  
• Is static friction a reaction force?
  
• What is the value of x in the equation (a/b)^(2x-3) = (b^3/a^3)^(x+4)?
  
• Two bodies. X and Y of mass m and M respectively exert forces on each other and no other forces act on them. The force on X is F and the acceleration is a. Which of the following pairs is correct?
  
• If kinetic energy of electron is double then its radius becomes?
  
• A point source is placed at a distance of 30cm from a convex lens (f=15cm). A glass slab of thickness 1cm is kept just in the opposite side of the lens. The refractive index of glass is 1.5. what will be image distance from lens?
  
• To stimulate a roller coaster, a cart is placed at the height of 4 m and allowed to roll from rest to the bottom. Find each of the following for the cart if friction can be ignored: a) the speed at the height of 1 m, b) the height when the speed is 3 m/s?
  
• Two point charges with charges of #8.4xx10^-6# are brought close to each other. (a). Sketch this and show the direction of the electric force? (b) If the point charge on the left feels a force of #0.66N,# calculate the distance, #r,# between them?
  
• Two forces whose resultant is 200N are perpendicular to each other. If one of them makes an angle of 60° with the resultant. Calculate it magnitude?
  
• When white light goes through the prism, it splits into a spectrum. Why red rays refract less and purple rays most of all?
  
• Jane slowly paddles her canoe across a calm lake. Explain what makes the boat moves forward. What principle best explains this situation?
  
• Why does sliding filament theory not apply during rigor mortis?
  
• Why is alcohol a good antiseptic at the cellular level?
  
• You do work when you push a heavy object even if the object does not move?
  
• .54 mol of H2 is contained in a 2.00 L container at 20.0 oC. What is the pressure in the container in atm?
  
• The diode that converts light energy into electrical energy is called photodiode or solar cell?
  
• If the total energy of the particle executing shm is e and amplitude a if the mass is m.find the new total energy if a new massm is attached to the particle at its extreme?
  
• If the torque needed to loosen a bolt is 40.0 Nm, what must be the minimum force exerted on a .30 m wrench to loosen the bolt?
  
• If a book weighing 10 N is sitting on a table, what is the magnitude of the support force?
  
• How do capacitors work in a circuit?
  
• What exactly makes the creation of a vaccine against malaria difficult?
  
• Significance of the negative values for potential difference to current graph?
  
• Between the configurations 4p1 and 4p2,which one is more stable?