Answers created by Akshay W.

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• Question #c9987
  
• What is the difference between acceleration, average acceleration and constant acceleration???
  
• Question #3e944
  
• Which has more thermal energy, a 5-kg bowling all that has been resting on a hot driveway for 4 hours on a 35° day, or the same bowling ball rolling down a lane on an air-conditioned bowling alley?
  
• Why is electricity generated as alternating current and not as DC?
  
• Question #99314
  
• Question #e2ec5
  
• Are permanent magnets ferromagnetic?
  
• Question #cd217
  
• Question #c63dc
  
• Question #c11d1
  
• How do you solve and check your solution given #b-1 1/2=4 1/4#?
  
• Question #6a8ef
  
• Question #03714
  
• How are electromagnetic waves usually drawn?
  
• What is Newton's third law?
  
• If #19 L# of a gas at room temperature exerts a pressure of #4 kPa# on its container, what pressure will the gas exert if the container's volume changes to #7 L#?
  
• Question #1a79d
  
• A projectile is shot from the ground at a velocity of #86 m/s# and at an angle of #(2pi)/3#. How long will it take for the projectile to land?
  
• Question #026bf
  
• Question #dd076
  
• What is an insulator?
  
• Question #0b840
  
• Question #9a243
  
• An electric toy car with a mass of #4 kg# is powered by a motor with a voltage of #7 V# and a current supply of #9 A#. How long will it take for the toy car to accelerate from rest to #3/2 m/s#?
  
• What determines the frequency of photons?
  
• Question #14b04
  
• Which condition will cause a charged particle in a uniform magnetic field to move in a helix?
  
• Question #1665c
  
• An object with a mass of #8 kg# is on a plane with an incline of # - pi/12 #. If it takes #12 N# to start pushing the object down the plane and #9 N# to keep pushing it, what are the coefficients of static and kinetic friction?
  
• Two boats defined by vectors? (See picture)
  
• A model train, with a mass of #4 kg#, is moving on a circular track with a radius of #3 m#. If the train's kinetic energy changes from #4 j# to #15 j#, by how much will the centripetal force applied by the tracks change by?
  
• Question #b7483
  
• After absorbing a neutron, a Uranium-235 nucleus can fission to produce Barium-141 and krypton-92. Calculate the energy that would be released from this fission of a Uranium-235 atom. How do you work this out?
  
• An object with a mass of #5 kg# is pushed along a linear path with a kinetic friction coefficient of #u_k(x)= e^x+x #. How much work would it take to move the object over #x in [1, 2], where x is in meters?
  
• Question #97bad
  
• Question #e9c3f
  
• Question #04d38
  
• Question #ae8e4
  
• Question #b8dff
  
• Question #1deff
  
• Question #a053f
  
• Two charges of # -1 C # and # -3 C# are positioned on a line at points # -2 # and # 12 #, respectively. What is the net force on a charge of # 4 C# at # -1 #?
  
• Question #9a373
  
• Is it possible to see real images without a screen?
  
• How much work would it take to horizontally accelerate an object with a mass of #8 kg# to #7 m/s# on a surface with a kinetic friction coefficient of #2 #?
  
• Question #b8ad5
  
• Question #6aed0
  
• An object is thrown vertically from a height of #2 m# at #4 m/s#. How long will it take for the object to hit the ground?
  
• If a projectile is shot at an angle of #(7pi)/12# and at a velocity of #9 m/s#, when will it reach its maximum height?
  
• Question #16856
  
• What is the average speed of an object that is not moving at #t=0# and accelerates at a rate of #a(t) =t+2# on #t in [3, 5]#?
  
• Question #004f2
  
• Question #ddee6
  
• Question #94ad3
  
• The force applied against a moving object travelling on a linear path is given by #F(x)=3x^2+x #. How much work would it take to move the object over #x in [2,3 ] #?
  
• How does carbon-14 form?
  
• What is the mass of #4.22 x 10^23# atoms of lead?
  
• How do you graph #x-y>=0#?
  
• Question #34f1c
  
• Why do larger instruments create lower frequencies than smaller instruments?
  
• An object with a mass of # 2 kg# is traveling in a circular path of a radius of #4 m#. If the object's angular velocity changes from # 1 Hz# to # 6 Hz# in # 3 s#, what torque was applied to the object?
  
• An object with a mass of #12 kg# is on a surface with a kinetic friction coefficient of # 2 #. How much force is necessary to accelerate the object horizontally at # 17 m/s^2#?
  
• Question #f7e9a
  
• Question #f7e9a
  
• Question #7ba22
  
• How do you solve #m+10=-2#?
  
• How do you simplify #7sqrt3-2sqrt2+3sqrt2+5sqrt3#?
  
• Question #9747b
  
• How do you solve #|x – 4| + 7 = 4#?