Answers created by xavier susil

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• A parachutist with a mass of 80 kg is falling at 55km/h when her parachute opens. She then falls 24 m in the next 2 s. What is the force of air resistance acting on the parachute during those 2 s?
  
• How do you use the discriminant to determine the numbers of solutions of the quadratic equation #4x^2-20x + 25 = 0# and whether the solutions are real or complex?
  
• Whats the absolute value of #abs(sqrt2)#?
  
• How do you completely factor #x^3+2x-4x-8#?
  
• How do you solve #2b = 3+ \sqrt { 2b + 3}#?
  
• Ben bought 4 pairs of jeans and a T-shirt that cost $8. He had a coupon for $3 off the price of each pair of jeans and spent a total of $92 before tax. What was the price of each pair of jeans?
  
• What is the equation of the parabola that has a vertex at # (21, 11) # and passes through point # (23,-4) #?
  
• Question #97a47
  
• A box with an initial speed of #7 m/s# is moving up a ramp. The ramp has a kinetic friction coefficient of #3/2 # and an incline of #pi /4 #. How far along the ramp will the box go?
  
• Question #53169
  
• Question #768fb
  
• Question #1e9fa
  
• A car drives one fourth of a road with u_1 the next fourth with u_2 the next with u_3 and the final with u_4. what is the average speed?
  
• Question #04d86
  
• If a train travels 1,600 km in 16 hours, how fast is it moving?
  
• Question #76b2d
  
• A projectile is shot at a velocity of # 1 m/s# and an angle of #pi/6 #. What is the projectile's peak height?
  
• How to find the height of this? Thank you!
  
• Question #174f9
  
• Question #fbbe2
  
• Question #30e0d
  
• Question #2b256
  
• Question #9c8f8
  
• Question #07899
  
• Question #24009
  
• An object with a mass of #2 kg# is revolving around a point at a distance of #5 m#. If the object is making revolutions at a frequency of #1 Hz#, what is the centripetal force acting on the object?
  
• Calculate the acceleration of a 2000-kg, single-engine airplane as it begins its takeoff with an engine thrust of 500 N ?
  
• Question #01cd8
  
• What is the hang time of a person who can jump a vertical distance of 0.6 m?
  
• Question #ae3a2
  
• Question #dcba7
  
• Question #2aebb
  
• What two things affect the resistance of a wire?
  
• Question #8cd0c
  
• A baseball goes from zero to 41 m/s in 0.238 s. What is its average acceleration?
  
• Question #91a5e
  
• Question #6b408
  
• Question #5cb0c
  
• A stone is thrown vertically upwards and it reaches a maximum height of 30m. What was its initial velocity?
  
• Question #75ffe
  
• What is the second most common element in the universe?
  
• Question #62270
  
• How do I find the amount of atoms in 1 Liter H20?
  
• What is the difference between push and pull?
  
• Question #f1328
  
• Question #87058
  
• Question #b27b7
  
• A car traveling 70 miles per hour is 20 miles behind a truck traveling 50 miles per hour. How long will it take the car to overtake the truck?
  
• Question #e96d5