Corey Brown

Popular questions and responses by Corey Brown
  1. Physics

    A pilot is flying from City A to City B which is 300 km [NW]. If the plane will encounter a constant wind of 80 km/h from the north and the schedule insists that he complete his trip in 0.75 h, what air speed and heading should the plane have?

    asked on April 21, 2014
  2. Physics

    A sniper fires a bullet at 120 m/s at 30° above the horizontal from the roof top of a 35 m high parking garage. If the bullet strikes the level ground beside the parking garage: a) How long was the bullet in the air? b) How far from the base of the

    asked on May 2, 2014
  3. Physics

    A playful college student tosses a water balloon out of his dorm window at a speed of 6.2 m/s at an angle of 10° above the horizontal. The dorm window is 11 m above ground level. 1)What is the maximum height above the ground of the balloon? 2) At what

    asked on April 21, 2014
  4. Physics

    Jack is driving with a pail of water along a straight pathway at a steady 25 m/s when he passes Jill who is parked in her minivan waiting for him. When Jack is beside Jill, she begins accelerating at the rate of 4.0 × 10−3 m/s2 in the same direction

    asked on April 22, 2014
  5. Physics

    A physics student who is late for school is trying to catch her bus. The student is 10 m behind the bus as the bus starts from rest and begins to accelerate at 0.5 m/s2 away from her. If the student continues running at a steady 3 m/s, will she catch her

    asked on April 19, 2014
  6. Physics

    Determine the acceleration of a 1500 kg automobile that rolls down an incline of 30° from the horizontal if a coefficient of friction between the tires and the incline is 0.12

    asked on June 10, 2014
  7. Physics ATTENTION HENRY!

    A lifeguard who can swim at 1.2 m/s in still water wants to reach a dock positioned perpendicularly directly across a 550 m wide river. a) If the current in the river is 0.80 m/s, how long will it take the lifeguard to reach the dock? b) If instead she had

    asked on April 24, 2014
  8. Physics

    A force of 3.0 N and 1.0 N act on a 6.0 kg mass as shown. What is the acceleration of the 6.0 kg mass

    asked on June 10, 2014
  9. Physics

    Calculate the tension in the cable connecting the two masses. Assume all surfaces are frictionless.

    asked on June 10, 2014
  10. Physics

    In the following diagram there is a coefficient of friction, μ, of 0.15 between the 5.0 kg mass and the surface. Calculate the tension in the cable connecting the two masses and the resulting acceleration.

    asked on June 10, 2014
  11. Physics

    While driving her new fuel efficient mini-car, Zelda changes her velocity from 22 km/h [forward] to 85 km/h [forward] while driving 2.0 × 102 m. What is her average acceleration ?

    asked on April 19, 2014
  12. Physics (URGENT!!!)

    A sniper fires a bullet at 120 m/s at 30° above the horizontal from the roof top of a 35 m high parking garage. If the bullet strikes the level ground beside the parking garage: a) How long was the bullet in the air? b) How far from the base of the

    asked on May 2, 2014
  13. Physics

    Is there anyway you can answer these questions with the information provided. Its using the moving man program. Procedure Place the man so that he is positioned at the 0.00 metre (m) mark. Set the initial velocity at -2.00 m/s and the acceleration at 0.50

    asked on April 22, 2014
  14. Physics

    A small plane can travel at 200 km/h in still air. If a 50.0 km/h wind is coming from the east, determine the ground velocity of the plane if the pilot keeps the plane pointed [N].

    asked on April 21, 2014
  15. Physics

    A fisherman who lives in a high rise apartment building in Toronto, weighs a fish on a spring scale and records a 11.2 N reading. He reweighs the fish while he is in his elevator and records a reading of 13.1 N. What is the acceleration of the elevator at

    asked on May 5, 2014
  16. Physics

    1. A small plane can travel at 200 km/h in still air. If a 50.0 km/h wind is coming from the east, determine the ground velocity of the plane if the pilot keeps the plane pointed [N]. 2. A pilot is flying from City A to City B which is 300 km [NW]. If the

    asked on April 24, 2014
  17. Physics

    In a rescue scene during the 911 crisis, a helicopter of mass 6000 kg accelerates upwards at the rate of 0.50 m/s2 while lifting a 2500 kg piece of concrete. What is the upward force exerted by the rotors of the helicopter? What is the tension in the cable

    asked on June 10, 2014
  18. Physics

    A sniper fires a bullet at 120 m/s at 30° above the horizontal from the roof top of a 35 m high parking garage. If the bullet strikes the level ground beside the parking garage:

    asked on April 28, 2014
  19. Physics

    A lifeguard who can swim at 1.2 m/s in still water wants to reach a dock positioned perpendicularly directly across a 550 m wide river. 1. If the current in the river is 0.80 m/s, how long will it take the lifeguard to reach the dock? 2. If instead she had

    asked on April 22, 2014
  20. Physics

    An airplane requires 420 m of runway to take off from an airstrip. If the plane starts from rest and it takes 32 s to lift off, with what velocity does it leave the ground? What was the average acceleration of the plane?

    asked on April 22, 2014
  21. Physics

    A small plane can travel at 200 km/h in still air. If a 50.0 km/h wind is coming from the east, determine the ground velocity of the plane if the pilot keeps the plane pointed [N].

    asked on April 22, 2014
  1. Physics

    In a rescue scene during the 911 crisis, a helicopter of mass 6000 kg accelerates upwards at the rate of 0.50 m/s2 while lifting a 2500 kg piece of concrete. What is the upward force exerted by the rotors of the helicopter? What is the tension in the cable

    posted on June 10, 2014
  2. Physics

    Thanks Henry, You're a good guy!

    posted on May 4, 2014
  3. Quick question, y or n please?

    Indeed, he did!

    posted on May 2, 2014
  4. Physics

    a) How long was the bullet in the air? b) How far from the base of the parking garage did the bullet land? c) At what angle did the bullet land?

    posted on April 28, 2014
  5. Physics

    GOT IT NEVERMIND

    posted on April 24, 2014
  6. Physics

    OR JUST PROVIDE THE FORMULA

    posted on April 22, 2014