Answers created by Pankaj Solanki

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• Double derivative of -sin(sinx)cosx..?
  
• A charge of #3 C# is at #(3, -1 )# and a charge of #-4 C# is at #( -3, 7 )#. If both coordinates are in meters, what is the force between the charges?
  
• How to find the first term, the common difference, and the nth term of the arithmetic sequence here? 8th term is 4; 18th term is -96
  
• A charge of #-2 C# is at #(4, 7)# and a charge of #-1 C# is at #( 5, 2)#. If both coordinates are in meters, what is the force between the charges?
  
• How do you solve #3( 1+ 4n ) - 2( 5n - 3) = 25#?
  
• A charge of #1 C# is at #(-2,7,1)# and a charge of #2 C# is at #(8,-1,4) #. If both coordinates are in meters, what is the force between the charges?
  
• Question #f066d
  
• Two forces of 3 N and 4 N act on a body simultaneously and the forces are perpendicular to each other. What is the net force on the body?
  
• Question #c51a5
  
• Question #dc133
  
• An object travels North at # 5 m/s# for #2 s# and then travels South at # 3 m/s# for # 2 s#. What are the object's average speed and velocity?
  
• A projectile is shot at an angle of #pi/6 # and a velocity of # 1 m/s#. How far away will the projectile land?
  
• Question #b88bf
  
• How do you simplify #3sqrt27+4sqrt12-sqrt300#?
  
• Raindrops are falling vertically at a speed of 120 km/h through air that is moving horizontally at a speed of 40 km/h(i.e. the wind is 40 km/h). At what angle do the drops strike the ground?
  
• Question #52e2a
  
• Question #ab4af
  
• Question #9b2b7
  
• How do you find the derivative of #F(x) = sqrt( (x-8)/(x^2-2) )#?
  
• Question #62e23
  
• Derive the relationship between #"g"# and #"G"#?
  
• Question #bc3b7
  
• Question #c2684
  
• Question #4fa34
  
• How do you solve #3x - 1( 5+ x ) = 2( x + 5)#?
  
• How do you expand the binomial #(x+4)^5# using the binomial theorem?
  
• Question #25f98
  
• Question #c6810
  
• Question #0bebb
  
• Question #3a861
  
• Objects A and B are at the origin. If object A moves to #(-3 ,-8 )# and object B moves to #(-2 ,-1 )# over #3 s#, what is the relative velocity of object B from the perspective of object A? Assume that all units are denominated in meters.
  
• Question #e8598
  
• 3((n+3)!-(n+1)!)=2((n+3)!+(n+1)!) calculate n value ?
  
• How do you simplify #(1-2i)(3+4i)#?
  
• How do you find #g(0)# given #g(x)=-5x+2#?
  
• Question #067a2
  
• What is #f(x) = int (x-2)/(x-1) dx# if #f(2) = 0 #?
  
• Calculate the acceleration of a 300,000-kg jumbo jet just before takeoff when the thrust on the aircraft is 120,000 N ?
  
• Consider a 40-kg block of cement that is pulled sideways with a net force of 200 N. Show that its acceleration is 5 m/s^2?
  
• When a cannonball is fired from a cannon, both the cannonball and the cannon experience equal ... ? LOOK AT THE DETAILS FOR CHOICES :
  
• An object is at rest at #(1 ,2 ,1 )# and constantly accelerates at a rate of #2/3 m/s# as it moves to point B. If point B is at #(4 ,9 ,5 )#, how long will it take for the object to reach point B? Assume that all coordinates are in meters.
  
• A ball with a mass of #480 g# is projected vertically by a spring loaded contraption. The spring in the contraption has a spring constant of #24 (kg)/s^2# and was compressed by #8/9 m# when the ball was released. How high will the ball go?
  
• Forces of 3.0 N and 4.0 N act at right angles on a block. What should be the mass of the block for the acceleration to be 1 m/s^2 ?
  
• Two integers have a sum of 16. one of the integers is 4 more than the other. what are the other two integers?
  
• How do you solve #-5n-8(1+7n)=-8#?
  
• Please help me?
  
• Question #330de
  
• A soccer goalie kicks a ball with force of 1500 newtons. The ball has a mass of 0.9 kg. At what rate will the ball accelerate?
  
• Question #7731e
  
• Question #37132
  
• How do you solve #1/ (2x+ 3) + 1/ (4x-3) = 5#?
  
• Question #68f57
  
• Question #e453a
  
• Question #eaa93
  
• Can you solve all these equations please ? Solve 4a+3=11
  
• Question #e84e5
  
• What is the density of copper if an #89.6*g# mass of the metal has a volume of #10.9*cm^3#?
  
• Objects A and B are at the origin. If object A moves to #(-6 ,-5 )# and object B moves to #(-1 ,12 )# over #3 s#, what is the relative velocity of object B from the perspective of object A? Assume that all units are denominated in meters.
  
• How do you simplify #(8^ { 6} ) ^ { 2} \div ( 8^ { 2} ) ^ { 5}#?
  
• Question #6578b
  
• A train travels a distance of 480 km at a uniform speed. If the speed had been 8 km/h less, then it would have taken 3 hours more to cover the same distance. What is the speed of the train?
  
• Question #45b9d
  
• An object is moving with a constant velocity of 278 m/s. How long will it take it to travel 7500 m?
  
• Question #71971
  
• The position of an object moving along a line is given by #p(t) = 4t - sin(( pi )/4t) #. What is the speed of the object at #t = 1 #?
  
• The current in a wire is 4.0 amperes. What is the time required for #2.5 times 10^19# electrons to pass a certain point in the wire?
  
• On a 120 km long railway track, a train travels the first 80 km at a uniform speed of 160 km/h. What is the speed with which the train should move on the rest of the track so as to get the average speed of 80 km/h for the entire trip?
  
• Question #0c7df
  
• Question #75e99
  
• A triangle has corners at #(9 ,5 )#, #(2 ,7 )#, and #(3 ,4 )#. How far is the triangle's centroid from the origin?
  
• Question #71e46
  
• How do you differentiate #f(x)= 5sinx*(1-2x)^2 + cosx*(x+1)# using the product rule?
  
• Question #99ac1
  
• Question #a126a
  
• Question #a126a
  
• Question #13154
  
• A force of 20 N is applied to a 10 kg mass on a level frictionless surface. What is its acceleration?
  
• Question #bed92
  
• Question #fb742
  
• How do you find the lengths of the arc on a circle of radius 15 inches intercepted by the central angle #180^circ#?
  
• A ball with a mass of #400 g# is projected vertically by a spring loaded contraption. The spring in the contraption has a spring constant of #25 (kg)/s^2# and was compressed by #3/7 m# when the ball was released. How high will the ball go?
  
• Question #f7702
  
• Question #6ffd9
  
• How do you find the area bounded by the x axis, y axis, #y=x^2+1# and #x=2#?
  
• Two objects have masses of #3 MG# and #10 MG#. How much does the gravitational potential energy between the objects change if the distance between them changes from #130 m# to #24 m#?
  
• Question #4f1ca
  
• How do you solve this system of equations: #-8x - y = 14 and - 5x + y = 12#?
  
• Question #c4fa3
  
• Question #b3aa8
  
• Question #159c0
  
• A thin rope 200 inches length is going to be cut into three pieces to form one circle and two equal squares. Which of the following represents the #r# of the circle, if the rope was finally cut in such a way that the total area of the shapes is minimized?
  
• How do you find #lim sin^2x/x# as #x->0# using l'Hospital's Rule?
  
• Question #5952a
  
• If #cos60^@=1/2#, what is #sec60^@#?
  
• Question #bc12d
  
• Question #b71d2
  
• How do you solve #x+ \frac { 3} { 8} = \frac { 7} { 5} x + \frac { 1} { 9} + \frac { 5} { 8}#?
  
• How do you find the sum of #Sigma (3i-1)# from i=1 to 6?
  
• Any trigonometry expert here to help, please?
  
• Question #2ebe8
  
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