physics

posted by .

1. (a) How far below an initial straight-line path will a projectile fall in eight seconds?
(b) Does your answer depend on the angle of launch or on the initial speed of the projectile? the answer is no. but defend it.
2. Why is it important that a satellite be above Earth's atmosphere?
3. What do the distances 8,000 m and 5 m have to do with a line tangent to Earth's surface?

  • physics -

    i dont know

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    A projectile is fired with an initial speed of 31.0 at an angle of 10.0 above the horizontal. The object hits the ground 7.50 later. a. How much higher or lower is the launch point relative to the point where the projectile hits the …
  2. physics

    The range R of a projectile is defined as the magnitude of the horizontal displacement of the projectile when it returns to its original altitude. (In other words, the range is the distance between the launch point and the impact point …
  3. physics

    A projectile is being launched from ground level with no air resistance. You want to avoid having it enter a temperature inversion layer in the atmosphere a height h above the ground. 1) What is the maximum launch speed you could give …
  4. Physics

    A projectile is launched with an initial speed of 40m/s at an angle of 25 degrees above the horizontal. The projectile lands 3 sec. later. Neglect air friction. What is the projectile's velocity at the highest point of it's trajectory?
  5. Physics

    A projectile is fired with an initial speed of 28.0 m/s at an angle of 65 degrees above the horizontal. The object hits the ground 9.5 seconds later. a) How much higher or lower is the launch point relative to the point where the projectile …
  6. Physics

    For a given initial projectile speed, you observe that the projectile has a certain range R at a launch angle A = 30 degrees. For what other launch angle will the projectile have the same range (assuming the same initial projectile …
  7. Physics

    A projectile is launched at an angle of 34.0o above the horizontal. The projectile has a mass of 1.50 kg and is given an initial speed of 20.0 m/s. a) What is the initial kinetic energy of the projectile?
  8. Physics

    A projectile is launched with an initial speed of 80.0m/s at an angle of 40 degrees above the horizontal. The projectile lands on a hillside 3.80s later. Neglect air friction. What is the projectile's velocity at the highest point …
  9. Physics

    A projectile is launched with an initial speed . At its highest point, the projectile's speed is . What was the launch angle above the horizontal?
  10. Physics

    A projectile is launched with an initial speed V0. At its highest point, the projectile's speed is V0/2 . What was the launch angle above the horizontal?

More Similar Questions