Posts by Mike Joseph

Total # Posts: 14

  1. Physics Gravity

    A projected space station consists of a circular tube that will rotate about its center (like a tubular bicycle tire) as shown in the figure . The circle formed by the tube has a diameter of about 1.1-km g = R w^2 = 9,8 m/s^2 R = 550 m How do I convert the answer with this ...
  2. Physics

    A 1400 kg car rounds a curve of 57 m banked at an angle of 14 degree If the car is traveling at 98 km/h, how much friction force will be required? I cannot figure out how to solve this problem. Someone please help me?
  3. Physics

    What is the maximum speed with which a 1150-kg car can round a turn of radius 71 m on a flat road if the coefficient of static friction between tires and road is 0.80? May someone walk me through this problem step by step? Thank you *The equation friction coefficient= v^2/Rg ...
  4. Physics

    A 13.0 -kg box is released on a 33 degree incline and accelerates down the incline at 0.20 m/s^2 What is the coefficient of kinetic friction? * If I know the friction force impeding the object motion is 67 N. How do I find the coefficient of kinetic friction?
  5. Physics Gravity

    A projected space station consists of a circular tube that will rotate about its center (like a tubular bicycle tire) as shown in the figure . The circle formed by the tube has a diameter of about 1.1-km What must be the rotation speed (revolutions per day) if an effect equal ...
  6. Physics Gravitation Weight

    What will a spring scale read for the weight of a 75-kg woman in an elevator that moves upward with acceleration of 0.30-g? Unsure of how to solve this problem. Can someone please walk me through it step by step. Thank you
  7. Physics Gravity

    The earth has a mass = 5.98 X 10^24 kg and the sun has a mass = 1.99 X 10^30 kg. They are separated, center to center, by r= 93 million miles = 150 million km. What is the size of the gravitational force acting on the earth due to the sun? Very confused by this problem. May ...
  8. Physics Vehicle application

    If the car is traveling at 98 km/h, will a friction force be required? If so, in what direction? How much friction force will be required? Confused. May someone walk me through this problem step by step. Thank you
  9. Physics of Vehichle

    A 1400 kg car rounds a curve of 57 m banked at an angle of 14 degrees If the car is traveling at 98 km/h, will a friction force be required? If so, in what direction? May someone please walk me through this problem step by step? Thank you
  10. Physics Circular Motion

    What is the maximum speed with which a 1150-kg car can round a turn of radius 71 m on a flat road if the coefficient of static friction between tires and road is 0.80? May someone walk me through this problem step by step? Thank you
  11. Physics Circular Motion

    A 0.40-kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 2.0 m on a frictionless horizontal surface. If the cord will break when the tension in it exceeds 75 N, what is the maximum speed the ball can have? May someone please walk me through ...
  12. Physics

    A 13.0 -kg box is released on a 33 degree incline and accelerates down the incline at 0.20 m/s^2 Find the friction force impeding its motion? Can someone please take me through this problem step by step? Thank you so very much
  13. Physics

    A 14.0 kg bucket is lowered vertically by a rope in which there is 181 N of tension at a given instant. What is the acceleration of the bucket? May someone please walk me through this problem step by step. Thank you
  14. Physics

    A 0.140-kg baseball traveling 39.0 m/s strikes the catcher's mitt, which, in bringing the ball to rest, recoils backward 13.0 cm. What was the average force applied by the ball on the glove? May someone please take me through this problem step by step? Very lost????