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  • need help with physics question?

    resultant magnitude?

    10 N 15 deg south west

    5N 40 deg north west

    10N 30 deg north east

    15N 20 deg south east

    1 AnswerPhysics8 years ago
  • need help with physics question?

    a car capable to reach 63 mil/hr from rest in 3.2 second.

    a) what is the acc in ft/s^2?

    b) take how long to finish a 1/4 mile run in second?

    c) what is the final velocity at the quarter mile?

    1 AnswerPhysics8 years ago
  • need help with physics question?

    a car capable to reach 63 mil/hr from rest in 3.2 second.

    a) what is the acc in ft/s^2?

    b) take how long to finish a 1/4 mile run in second?

    c) what is the final velocity at the quarter mile?

    3 AnswersPhysics8 years ago
  • need help with physics question?

    a stone thrown direct upward with the Vo=40. how long in time when it will reach the top?

    What is the distance at 3 seconds?

    What is the final velocity when to returns to hand?

    3 AnswersPhysics8 years ago
  • A 68-kg base runner begins his slide into second base when he is moving at a speed of 4.3 m/s.?

    A 68-kg base runner begins his slide into second base when he is moving at a speed of 4.3 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base.

    (a) How much mechanical energy is lost due to friction acting on the runner?

    (b) How far does he slide?

    2 AnswersPhysics9 years ago
  • Physics question help?

    A block of mass 2.50 kg is pushed 2.40 m along a frictionless horizontal table by a constant 18.0 N force directed 25.0° below the horizontal.

    (a) Determine the work done by the applied force.

    (b) Determine the work done by the normal force exerted by the table.

    (c) Determine the work done by the force of gravity.

    (d) Determine the work done by the net force on the block.

    1 AnswerPhysics9 years ago
  • help with physics question ?

    A high-speed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball, initially at rest, for about 0.0049 s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 2.3 102 ft/s, find the average force exerted on the ball by the club.?

    1 AnswerPhysics9 years ago
  • physics help error analysis?

    For the following functions,with the measured calues listed below, calculate the function value and its uncertainty(using the most conservative method in all cases)

    1) B= d-e

    2) x=cos(theta)

    3) s= 2 pi rh +2 pi r^2

    D=15.00 +- 0.83

    e= 3.16+- .15

    f= 2.00+- .03

    theta= 1.23 +- .03

    h= 11.11 +- .17

    r= 7.36 +-.22

    1 AnswerPhysics9 years ago
  • physics projectile help?

    A fighter-jet is in level flight at an altitude of 400m and with a speed of 200m/s. The fighter launches a rocket-powered missile horizontally from the underside of the jet. The rocket engine provided a constant horizontal acceleration of 25.0 m/s^2.

    a) how far does the missile travel horizontally from the launch point to impact with the ground?

    b) calculate the components of the missile's impact velocity.

    1 AnswerPhysics9 years ago
  • college physics help?

    A fighter-jet is in level flight at an altitude of 400m and with a speed of 200m/s. The fighter launches a rocket-powered missile horizontally from the underside of the jet. The rocket engine provided a constant horizontal acceleration of 25.0 m/s^2.

    a) how far does the missile travel horizontally from the launch point to impact with the ground?

    b) calculate the components of the missile's impact velocity.

    1 AnswerPhysics9 years ago
  • frictional force help?

    a person pushed 10 kg crate along a horizontal surface by applying a force of 125N at an angle of 37 below the horizontal. the coefficient of kinetic friction (uK) between the crate and the surface is 0.35.

    determine the frictional force on the crate

    determine the acceleration of the crate.

    2 AnswersPhysics9 years ago
  • a toy cannon fires a projectile from ground level with a speed of 15.0 m/s,?

    a toy cannon fires a projectile from ground level with a speed of 15.0 m/s, at an angle of 30.0 degrees above the horizontal.

    a) calculate the horizontal range of projectile.

    R=Vi^2/g * sin 2theta

    = (150/9.8)*(sin(2*30.0)

    = 19.88m

    I know this part is right but i'm not sure what to do next?

    b) calculate the maximum height for the trajectory.

    c) calculate the components of the projectile's impact velocity.

    1 AnswerPhysics9 years ago
  • physics question help?

    A fighter-jet is in level flight at an altitude of 400m and with a speed of 200m/s. The fighter launches a rocket-powered missile horizontally from the underside of the jet. The rocket engine provided a constant horizontal acceleration of 25.0 m/s^2.

    a) how far does the missile travel horizontally from the launch point to impact with the ground?

    b) calculate the components of the missile's impact velocity.

    1 AnswerPhysics9 years ago
  • physics question help?

    A truck covers 40.0 m in 8.30 s while uniformly slowing down to a final velocity of 1.80 m/s.

    (a) Find the truck's original speed.

    (b) Find its acceleration.

    2 AnswersPhysics9 years ago
  • Physics question help?

    A 49.5-g Super Ball traveling at 26.0 m/s bounces off a brick wall and rebounds at 18.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.35 ms, what is the magnitude of the average acceleration of the ball during this time interval?

    2 AnswersPhysics9 years ago
  • Physics question help?

    A parachutist with a camera descends in free fall at a speed of 15 m/s. The parachutist releases the camera at an altitude of 70 m.

    (a) How long does it take the camera to reach the ground?

    (b) What is the velocity of the camera just before it hits the ground?

    3 AnswersPhysics9 years ago
  • Physics question help?

    A car traveling at a constant speed of 28.0 m/s passes a trooper hidden behind a billboard. One second after the speeding car passes the billboard, the trooper sets off in chase with a constant acceleration of 2.50 m/s2. How long does it take the trooper to overtake the speeding car? Solve this problem by a graphical method.

    On the same graph, plot position versus time for the car and the trooper. From the intersection of the two curves, read the time at which the trooper overtakes the car

    3 AnswersPhysics9 years ago
  • Physics help???????????????

    Light travels at a speed of about 3.0 X 10^8 m/s. 1) how many miles does a pulse of light travel in a time interval of .1s, which is about the blink of an eye. 2) compare this distance to the diameter of earth ( use 6.83 X 10^6 m for the radius of the earth)

    1 AnswerPhysics9 years ago
  • physics help!????????

    A house is 55.0 ft long and 30 ft wide, and has 8.0-ft-high ceilings. What is the volume of the interior of the house in cubic meters and cubic centimeters?

    m^3

    1 AnswerPhysics9 years ago