dakota22

Most popular questions and responses by dakota22
  1. Physics 141

    A 45.0-kg skater is traveling due east at a speed of 2.85 m/s. A 72.5-kg skater is moving due south at a speed of 7.35 m/s. They collide and hold on to each other after the collision, managing to move off at an angle θ south of east, with a speed of vf.

    asked on March 11, 2014
  2. Physics 141

    The drawing shows a bicycle wheel resting against a small step whose height is h = 0.125 m. The weight and radius of the wheel are W = 23.1 N and r = 0.330 m, respectively. A horizontal force vector F is applied to the axle of the wheel. As the magnitude

    asked on April 5, 2014
  3. Physics 141

    A mine car (mass mcar = 444 kg) rolls at a speed of vcar = 0.52 m/s on a horizontal track, as the drawing shows. An mcoal = 141 kg chunk of coal has a speed of vcoal = 0.79 m/s when it leaves the chute. Determine the speed of the car-coal system after the

    asked on March 11, 2014
  4. Physics 141

    The drawing shows a person (weight W = 586 N, L1 = 0.837 m, L2 = 0.397 m) doing push-ups. Find the normal force exerted by the floor on each hand and each foot, assuming that the person holds this position. force on each hand N force on each foot N

    asked on April 3, 2014
  5. Physics 141

    A 71-kg skier is going down a slope oriented 37° above the horizontal. The area of each ski in contact with the snow is 0.13 m2. Determine the pressure that each ski exerts on the snow.

    asked on April 12, 2014
  6. Physics 141

    A bicycle wheel resting against a small step whose height is h = 0.125 m. The weight and radius of the wheel are W = 23.1 N and r = 0.330 m, respectively. A horizontal force vector F is applied to the axle of the wheel. As the magnitude of vector F

    asked on April 5, 2014
  7. Physics 141

    The drawing shows a bicycle wheel resting against a small step whose height is h = 0.125 m. The weight and radius of the wheel are W = 23.1 N and r = 0.330 m, respectively. A horizontal force vector F is applied to the axle of the wheel. As the magnitude

    asked on April 3, 2014
  8. Physics 141

    A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 93.0 kg. The mass of the rock is 0.320 kg. Initially the wagon is rolling forward at a

    asked on March 11, 2014
  9. Physics 141

    A car is on a circular track of radius r = 100 m. It's tangential speed is 30 m/s. How many lateral gravities does the driver feel?

    asked on February 21, 2014
  10. Physics 141

    x=3.5cos(8pi.t) Amplitude=3.5m Frequency?

    asked on April 5, 2014
  11. Physics 141

    x=3.5Cos(8pi.t) Amplitude=3.5m What is the frequency?

    asked on April 5, 2014
  1. Physics 141

    Thank you so much for your time and help!

    posted on April 5, 2014
  2. Physics 141

    THANK YOU SO MUCH!

    posted on April 5, 2014