1. science

    How do the principles of physics and chemistry both come into play when developing new materials?
  2. Physics

    How much force is required to accelerate 7.0 g object at 11000 "g's" in a centrifuge?
  3. Physics

    A swordfish swims at 2.46km/h.How far has the fish traveled after 2050s?
  4. physics

    derive the formula v0=sqrt((deltaX)squared)*g)/2*deltaY
  5. science

    How do the principles of physics and chemistry both come into play when developing new materials
  6. physics

    Suppose you increase your walking speed from 1m/s to 3m/s in a period of 1s. What is your acceleration? a:2m/s b:5m/s c:4m/s d:3m/s
  7. Physics

    Find the pressure at the bottom of a swimming pool that is 1.1 m deep.
  8. physics

    If a ball hits a wall going 10 m/s, and bounces off going 7 m/s. What is the coefficient of restitution?
  9. physics

    A 12 V battery will increase the potential energy of 2.1 C of charge by how many joules?
  10. physics

    can a mechanical advantage of a simple machine be les than 1? explain
  11. physics

    what speed must you toss a ball straight up so it takes 2s to return to you
  12. physics

    What would be the resultant vector with an angle of 30° with the +x axis and has a y component of 8.9 Newtons?
  13. physics

    If the speed of an object is doubled its kinetic energy is multiplied by
  14. physics

    Why can't you put your heels firmly against a wall and then bend over without falling?
  15. physics

    Calculate the Specific Gravity of an object that sinks in water if m = 21.97 g and mA = 17.40 g.
  16. Physics

    How long does it take a vehicle with 40hp to achieve 25m/s(meters per second)?
  17. physics

    What is the energy of a photon of yellow light with a frequency of 5.14 × 1014 Hz?
  18. Physics

    If you had to straighten out a refracted ray that went through a lens with a focal length of +15 cm, what could you do?
  19. Physics

    Can someone please tell me how to calculate the percent of error for a set of data points? thanks so much!
  20. physics

    How many joules of energy are required to melt 80g of silver.
  21. Physics

    Can someone please tell me how to calculate the percent of error for a set of data points? thanks so much!
  22. physics

    when a car drives off a cliff why does it ratate forward as it falls?
  23. Physics

    When is your weight normal, higher, or lower while moving up and down in an elevator?
  24. physics

    How will the weight of an 20kg object change if it was in a lift that accelerates downwards at 4m.s-1
  25. PHYSICS

    Can someone please tell me how to calculate the percent of error for a set of data points? thanks so much!
  26. physics

    why is the momentum constant if the mango drops from the tree without rebound
  27. Physics

    A boy walk 1km due north.what is his displacement?
  28. Physics

    What electromagnetic waves are dangerous for humans and why? I have microwave, xrays....can you help name a few
  29. physics

    how i cld rise the base of a house wd the help f electric circuit
  30. physics

    if you exert a force of 500 N to walk 4 m up a flight of stairs in 4 s, how much
  31. Physics

    If radius = 1.25 when i am swinging a bucket around and around what is the slowest possible speed i can go without it spilling?
  32. Physics

    What is the period of a wave that travels through a spring at 2.5 m/s and has a wavelength of 1.3 meters?
  33. Physics

    How does the length, thickness, and temperature of a wire effect the resistance?
  34. Physics

    What is the power output of an engine the does 60,000J of work in 10s?
  35. physics

    claculate the force of gravity between two identical balls 8kg each, if they are 5m apart?
  36. Physics

    How much energy is deposited in the body of a 78 kg adult exposed to a 2.9 Gy dose? Please and thank you.
  37. physics

    What happens to the gravitational energy of a firefighter when he slides down the fire pole?
  38. Math Physics

    What is the wavelength in metres of an electromagnetic wave with a frequency of 10^14/s?
  39. Physics

    Find the modulus direction cosin unit vector 1) 4a-2b+3c (2) a-7b+5c (3)4a-3b+c
  40. physics

    differentiate between law of paralleogram and resolution of component of force.
  41. physics

    A car accelerates from rest at 7.9 m/s2. How much time does it need to attain a speed of 5 m/s?
  42. physics

    Which of the following sets of forces acting simultaneously on a particle keep it in equilibrium?
  43. physics

    A nail is dropped from a height of 400m. How long does it take to land?
  44. Physics

    By what distance must two charges of +2 C and +4 C be separated so that the repulsive force between them is 4.10 1010 N?
  45. Physics

    What is the electric force of attraction between charges of 3 C and -4 C separated by a distance of 2 m?
  46. PHYSICS

    T.E of e in excited state is E . WHAT IS KINETIC ENERGY with proper sign
  47. physics

    pls show answers and work with the questions i have posted.
  48. physics

    claculate the force of gravity between two identical balls 8kg each, if they are 5m apart?
  49. Physics

    What is the scientific principle involved in unmanned level crossing?
  50. Physics

    Two identical charges are 36 mm apart. The electrostatic force between them is 1.3 N. What is the size of each charge?
  51. physics

    A 1 kg block drops from a table and accelerates towards the floor at 10 m/s2. What is the force?
  52. Physics

    If your car accelerates from rest at a steady rate of 4 m/s2, how soon will it reach 84 km/h
  53. physics

    what is the value of electric field intesity at a point between two co centric sphere
  54. physics

    How can you explain the caculation of velocity or speed using distance and time?
  55. physics

    If a person runs a marathon 26.4 miles in 2.5 hours, what is his/hers speed?
  56. physics

    if the earth exerts a force 300n how much does the body weigh?
  57. physics

    Your weight is 110 lb. What is your mass in kilograms? Answer in units of kg.
  58. Physics

    Two forsec of 5N and 7N act on an object. What are the maximum and minimum of the two forces
  59. physics

    Consider a concave mirror with radius R. An upright object is placed in between the interval R/2 and R. R
  60. physics

    what is the speed of 1kg object when the kinetic energy is 1 joule
  61. Physics

    What is the average useful power output of a person who does 5.90×106 J of useful work in 7.90 h?
  62. physics

    Which is the vector quantity that describes the shortest path between two points?
  63. Physics

    What is the scientific principle involved in unmanned level crossing?
  64. Physics

    Determine the relative density of a regular shaped object
  65. Physics

    Find out the resultant of two forces of 4N and 7N acting at an angle of 140°
  66. Physics

    Describe how the range of a projectile varies with launch angle.
  67. physics

    A 31-m/s velocity vector that makes an angle of 44° counterclockwise from the -x direction. x: y:
  68. physics

    You drive a car 7 h at 42 km/h, then 7 h at 65 km/h. what is your average velocity? answer in units of km/h
  69. Physics

    Find the modulus direction cosin unit vector 1)4a-2b+3c, 2)a-7b+5c, 3)4a-3b+c.
  70. physics

    How do I find the magnitude from this data: theta_1 = 44.9 theta_2 = 146.1 A = 4.8 cm B = 8.7 cm
  71. physics

    what is the resultant of two 65N identical one acting easterly and the northerly
  72. Physics

    Find the density of a 5.8- solid cylinder that is 15 cm tall with a radius of 5.0 .
  73. physics (Science)

    If a bee flew 27 centimeters in 10 seconds what would its speed be?
  74. science[physics]

    why is the pressure more on ground when a person is walking than when he is standing ?
  75. physics

    Discribe the phase change that took place in the solid between the time t1 and t2?
  76. Physics

    what is the kinetic energy in joules of a 1040-kg automobile traveling at 81 km/h ?
  77. physics

    determine the velocity of a charge that push by the 16 volts source
  78. Physics

    A car accelerates from rest to 90km/h in 10 seconds.What is its acceleration in m/s2?
  79. Physics

    What is the magnitude of the earth's gravitational field at sea level?
  80. Physics

    62m of skid marks and coefficient of .75, how fast was the car going?
  81. Physics

    Two spheres with masses of 5.00 g and 10. kg respectively are .500 m apart. calculate the force of attraction between them.
  82. Physics

    An airplane travels at 880 how long does it take to travel 1.50km
  83. Physics

    What is the Michelson and Morley experiment? Please don't give me Wikipedia
  84. Physics

    With speed 75m/s and period 5.42ms, calculate the wavelength.
  85. physics

    The maximum displacement of a vibrating body on either side of its mean position is known as its
  86. physics

    why we derive our hands upwards and backwards to catch the ball?
  87. Health Physics

    What type of machine are the joints of the human body?
  88. Physics

    What is the wavelength of a 512 Hz sound wave in 20 degree C air?
  89. physics

    a 3.5 kg bowling ball is 6.5 m above the ground. How much potential energy does it possess?
  90. Health Physics

    When work is done by friction, in what form in energy "lost"?
  91. Gr 11 Physics Optics Unit

    Explain why a virtual image must always be upright.
  92. Chemistry Physics

    What is the wavelength in metres of an electromagnetic wave with a frequency of 10^14/s?
  93. Health Physics

    What type of machine are the joints of the human body?
  94. physics

    How does the construction of the astro blaster increase GPE? How does this affect the KE?
  95. physics

    How many electrons pass through a lamp in 3 minutes.If the current is 300 ma?
  96. Physics

    What experiment can be used to prove that the value of gravity near the earths surface is constant ie. 9,8m.s
  97. physics

    a plane travelling at 200.0m/s braked to a stop in 6.2s. what was its acceleration?
  98. physics

    do all electrons ejected from a metal surface have the same kinetic energy?
  99. physics

    Find modulus,Direction cosines,Unit vectors of (1)4a-2b+c,(2)a-7b+5c,(3)4a-3b+c.
  100. physics

    What is the potential energy of something with a mass of 10g on a hill with a height of 5m?
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