Answers created by SaiGanesh Gotetti

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• If a #2 kg# object is constantly accelerated from #0m/s# to #16 m/s# over 6 s, how much power musy be applied at #t=3 #?
  
• Question #da4bd
  
• Question #4b5dc
  
• Question #b8180
  
• Question #93873
  
• Question #dfffa
  
• Question #ee96c
  
• Question #bbe8e
  
• What is the conductivity of a conduit with a cross-sectional area of #0.60# #cm^2# and a length of #15# #cm#, given that its conductance #G# is #0.050# #ohm#?
  
• Question #cfe7e
  
• How do you solve #x^2-2x=5# using the quadratic formula?
  
• Question #5bf9c
  
• Question #848b4
  
• What is the work done when a sample of gas expands from 12.5L to 17.2L against a pressure of 1.29 atm? Give your answer in Joules.
  
• If work is zero, when is force nonzero?
  
• What formula is used to calculate resistance using the color code?
  
• A box with an initial speed of #9 m/s# is moving up a ramp. The ramp has a kinetic friction coefficient of #5/4 # and an incline of #(3 pi )/4 #. How far along the ramp will the box go?
  
• An object moving at a constant velocity of 5.4 m/s travels for 12 s. How far will it move during that time?
  
• A load of 15 N attached to a spring that is hanging vertically stretches the spring 35 cm. What is the spring constant of the spring?
  
• What is the force, in terms of Coulomb's constant, between two electrical charges of #44 C# and #39 C# that are #12 m # apart?
  
• A car with a mass of #1.5 * 10^3# kg starts from rest and accelerates to a speed of 18.0 m/s in 12.0s. Assume that the force of resistance remains constant at 400 N during this time. What is the average power developed by the car's engine?
  
• A container has a volume of #12 L# and holds #15 mol# of gas. If the container is expanded such that its new volume is #21 L#, how many moles of gas must be injected into the container to maintain a constant temperature and pressure?
  
• What is the prime factorization of 364?
  
• What is the projection of #(-i + j + k)# onto # ( i - j + k)#?
  
• How do you solve #5y - 11= - 51#?
  
• A car has a mass of #1,500# #kg# and an acceleration of #2.0# #m##/s^2#. What is the net force acting on the can?
  
• Which is warmer -30°C or -30 F?
  
• What is the dot product of #<1,5,-3 ># and #<-1,4,2 >#?
  
• What is the cross product of #[0,8,5]# and #[2, 4, 8] #?
  
• A model train with a mass of #9 kg# is moving along a track at #18 (cm)/s#. If the curvature of the track changes from a radius of #24 cm# to #42 cm#, by how much must the centripetal force applied by the tracks change?
  
• What is the angular momentum of an object with a mass of #4 kg# that moves along a circular path of radius #30 m# at a frequency of # 15 Hz #?
  
• If #A = <6 ,4 ,-3 >#, #B = <7 ,1 ,-4 ># and #C=A-B#, what is the angle between A and C?
  
• Which has more momentum, a #7kg# object moving at #8m/s# or a #4kg# object moving at #9m/s#?
  
• A solid disk with a radius of #3 m# and mass of #4 kg# is rotating on a frictionless surface. If #120 W# of power is used to increase the disk's rate of rotation, what torque is applied when the disk is rotating at #8 Hz#?
  
• A charge of #-2 C# is at #(6 , -5 )# and a charge of #-4 C# is at #(-3 , -9 ) #. If both coordinates are in meters, what is the force between the charges?
  
• What is the formula for calculating momentum?
  
• What is the force, in terms of Coulomb's constant, between two electrical charges of #-8 C# and #-12 C# that are #3 m # apart?
  
• The gas inside of a container exerts #15 Pa# of pressure and is at a temperature of #220 ^o C#. If the temperature of the gas changes to #10 ^oC# with no change in the container's volume, what is the new pressure of the gas?
  
• A model train, with a mass of #6 kg#, is moving on a circular track with a radius of #7 m#. If the train's rate of revolution changes from #1 Hz# to #2 Hz#, by how much will the centripetal force applied by the tracks change by?
  
• How much work would it take to push a # 5 kg # weight up a # 2 m # plane that is at an incline of # pi / 6 #?
  
• What torque would have to be applied to a rod with a length of #4 m# and a mass of #3 kg# to change its horizontal spin by a frequency of #3 Hz# over #2 s#?
  
• An object with a mass of #2 kg# is moving at #5 m/s# over a surface with a kinetic friction coefficient of #2 #. How much power will it take to accelerate the object at #8 m/s^2?
  
• What is the field strength, #E#, experienced by a test charge, #q#, if a charge of #1.0*10^-6# coulombs is placed on #q# and a force of #6.2# #N# is applied?
  
• A projectile is shot from the ground at a velocity of #25 m/s# and at an angle of #(2pi)/3#. How long will it take for the projectile to land?
  
• What is the moment of inertia of a rod with a mass of #3 kg# and length of #4 m# that is spinning around its center?
  
• 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 # 4 Hz# to # 9 Hz# in # 3 s#, what torque was applied to the object?
  
• What is the force, in terms of Coulomb's constant, between two electrical charges of #-45 C# and #60 C# that are #15 m # apart?
  
• How much work would it take to push a #8 kg # weight up a # 7 m # plane that is at an incline of # pi / 12 #?
  
• What is the unit vector that is normal to the plane containing 3i+7j-2k and 8i+2j+9k?
  
• What is the cross product of #<7, 5 ,6 ># and #<3 ,5 ,-2 >#?
  
• An object is thrown vertically from a height of #2 m# at #5m/s#. How long will it take for the object to hit the ground?
  
• A force of 65N is required to keep a 16kg block sliding across a horizontal surface at a constant speed of 5m/s. What is the coefficient of kinetic friction on the surface?
  
• An object with a mass of #5 kg# is on a surface with a kinetic friction coefficient of # 4 #. How much force is necessary to accelerate the object horizontally at # 12 m/s^2#?
  
• What is Newton's Law of Cooling?
  
• What is the angular momentum of a rod with a mass of #5 kg# and length of #4 m# that is spinning around its center at # 1 1 Hz#?