PHYSICS

1. Vecor A is 3 units in length and points along the positive x-axis. Vector B is 4 units in length and points along a direction 150 degrees from the positive x-axis. What is the direction of the resultant relative to the positive x-axis?
a. 80 degrees
b. 10 degrees
c. 90 degrees
d. 100 degrees

2. A hiker walks 4.5 km at an angle of 45 degrees north of west. Then the hiker walks 4.5 km south. What is the magnitude and direction of the hiker's total displacement?
a. 3.5 km, 22 degrees south of west
b. 3.5 km; 22 degrees north of west
c. 6.4 km, 45 degrees north of west
d. 6.4 km; 22 degrees south of west

3. A gorilla weighs 8.00 X 10^2 N and swings from vine to vine. As the gorilla grabs a new vine, both vines make an angle of 30 degrees with the vertical. In such a condition of static equilibrium, what is the net force on the vine?
a. 924 N
b. 433 N
c. 196 N
d. 461 N

4. An Olympic skier moving at 20.0 m/s down a 30 degree slope encounters a region of wet snow and slides 145 m before coming to a halt. What is the coefficient of friction between the skis and the snow?
a. 0.540
b. 0.740
c. 0.116
d. 0.470

5. Which of the following energy forms is associated with an object's interaction with the environment?
a. potential energy
b. kinetic energy
c. mechanical energy
d. nonmechanical energy

6. A 1.00 X 10^3 kg sports car accelerates from rest to 25.0 m/s in 7.50 s. What is the average power output of the automobile engine?
a. 20.8 kW
b. 30.3 kW
c. 41.7 kW
d. 52.4 kW

THANKS!!!!!

We'll be happy to help you if you post questions one at a time and show your work. We do not do your homework assignments for you here.

asdasd

  1. 👍 0
  2. 👎 0
  3. 👁 137
  1. #6 is C.

    1. 👍 0
    2. 👎 0
    posted by mary
  2. #2 is A

    1. 👍 0
    2. 👎 0
    posted by kristi
  3. 3. D

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    1) The vector sum of three vectors gives a resultant equal to zero. what can you say about the vectors? 2) Vector is 3.00 units in length and points along the positive x-axis. Vector is 4.00 units in length and points along the

    asked by Aman on November 19, 2009
  2. Science

    1) The vector sum of three vectors gives a resultant equal to zero. what can you say about the vectors? 2) Vector is 3.00 units in length and points along the positive x-axis. Vector is 4.00 units in length and points along the

    asked by Sandy on November 19, 2009
  3. PHY

    Vector V1 is 9.00 units long and points along the negative x axis. Vector V2 is 4.72 units long and points at +50.0° to the +x axis. (a) What are the x and y components of each vector? V1x = V1y = V2x = V2y = (b) Determine the

    asked by ami on August 22, 2010
  4. physics

    Vector V1 is 6.29 units long and points along the negative x axis. Vector V2 is 4.23 units long and points at +35.0° to the +x axis. (a) What are the x and y components of each vector? V1x = V1y = V2x = V2y = (b) Determine the

    asked by michael on September 30, 2012
  5. physics

    Vector V1 is 8.58 units long and points along the -x axis. Vector V2 is 4.45 units long and points at +40.0° to the +x axis. (a) What are the x and y components of each vector? V1x = V1y = V2x = V2y = (b) Determine the sum V1 +

    asked by royaa on September 25, 2012
  6. physics

    vector (V1) is 6.3 units long and points along the negative (X) axis. Vector(V2) is 9.0 units long and points at 55 degree to the positive (X)axis. 1- What are the (X) and (Y) components of (V1) vector ? 2-What are the (X) and (Y)

    asked by july on October 9, 2011
  7. physics

    Vector A is 10 unit longs and points at 25 degree above the positive x axis. Another vector B is 8 units long and points along yhe positive x axis. Determine the magnitude of A X B.

    asked by ain on October 18, 2014
  8. physics

    Vector vector A has a magnitude of 6.90 units and makes an angle of 46.5° with the positive x-axis. Vector vector B also has a magnitude of 8.00 units and is directed along the negative x-axis. Using graphical methods find the

    asked by Bill Muary on September 29, 2010
  9. Physics

    Vector V1 is 6.6 units long and points along the negative x axis. V2 is 8.5 units long and points at +55 degrees to the positive x axis. A) What are the x and y components of each vector? B) Determine the sum of vector 1 and

    asked by Anonymous on September 6, 2016
  10. AP Physics 1

    1. A delivery truck travels 21 blocks north, 16 blocks east, and 26 blocks south. What is its final displacement from the origin? Assume the blocks are equal length. 2. Vector V1 is 6.6 units long and points along the negative x

    asked by Vikram on January 15, 2016
  11. physics

    Vector is 6.3 units long and points along the negative axis. Vector is 9.0 units long and points at 55 to the positive axis. 1- What are the and components of vector ? 2-What are the and components of vector ? 3-Determine the

    asked by simantha on October 8, 2011

More Similar Questions