(124 unread) - smith3826@yaho Sample Exam Physics 013 b (43) Buddy Hield can't get emotix (124 unread)- smith3826@yaho Not secure huscience.org/phys013/index.php/sample-exam/ C 5. Write the vector a = li+1j in magnitude angle notation. 6. Write the vector a=9, A" = 45 in component notation. 7. Calculate the dot product of a li+2j+1k and b 1i+1j-3k. 8. Calculate the cross product of a = li+2j+1k and b=1i+1j-3k. 9. Calculate the dot product of vcctors a and b if a=2, b-3, and the angle between them is 90 degrees. 10. Calculate the magnitude of the cross product of vectors a and b if a=2, b-3, and the angle between them is 90 degrees. 11. A particle travels on the x axis. If its velocity is 10m/s at t 2s, what is its velocity at t0 seconds if it accelerates at 1m/s?? 12. What is the maximum height of a ball thrown upwards at 10 m/s?

Q: Describe how objects can become electrically charged Use Coulomb's law to compute the force between…

A: (i) How objects can become electrically charged. (ii) Force between two charges using Coulomb's law.

Q: 2. The figure shows a pin-supported member, ABD, in static equilibrium. The mass of the member is…

A: The objective of this question is to calculate the support reactions at points B and D, and to…

Q: (numbers 1-2) A 1.00 kg block is sliding up a surface inclined at 33.0° above the horizontal. The…

A:

Q: A small 2.0 kg block moves in a horizontal circular trajectory at constant speed. The block is…

A:

Q: What is the total kinetic energy of a 0.15 kg hockey puck sliding at 0.5 m/s and rotating about its…

A: Given: In this question, the given values are, m=0.15 kg v=0.5 m/s d=0.076 m R=0.038 m ω=8.4 rad/s…

Q: (numbers 24-25) A uniform cylinder rotates about a fixed axis through its center. It initially…

A:

Q: An aluminum ring of radius r₁=5.00 cm and a resistance of 3.55 x 10-4 is placed around one end of a…

A:

Q: Earth has a net charge that produces an electric field of approximately 168 N/C downward at its…

A: Given  Electric field, E = 168 N/C  Radius of earth, R = 6.37× 106 m  Net charge of earth, Q

Q: Draw a diagram of the situation and determine the magnitude of the electric field (in N/C)

A: To calculate electric field we consider a unit positive charge at that calculating point then for…

Q: fantasy park as showm. What will be the final speed of the roller coaster, if it starts from rest at…

A:

Q: A 0.4 C charge and a 0.3 charge exert a force of 55 N on each other. How far apart are the charges?

A: (1) Given: Charges q1=0.4 C, q2=0.3 C, Force between the charges F=55 N. Required: Distance between…

Q: The path r(t) = (t) + (21²-5) j describes motion on the parabola y = 2x2-5. Find the particle's…

A:

Q: -15 A small droplet of oil with a mass of 2.00 x 10 kg is given a small excess charge, which allows…

A: Given data:  A small droplet held suspended  Direction of electric field = upward Required:  The…

Q: Consider the semiare of charge shown in the figure, that has an opening angle of 0o = 47° and a…

A:

Q: A sinusoidal transverse wave is traveling along a string in the negative direction of an x axis. The…

A: Since you have asked more than three sub-parts of a question, according to our guidelines we'll only…

Q: 11 What is the slope of the line in the graph below? OA 0.5 m/s B 2.0 m/s distance (m) C 8.0 m/s OD…

A:

Q: a. b. C. F(x)= F(x) = F(x) = f(x) = 2 + 5x²-x³ f(x) = 9x1/4-7x3/4 f(x) = -1/

A:

Q: 10. An open container of water is filled to the very top. A 7 kg block with a density between 300…

A:

Q: In a beehive, each cell is a regular hexagonal prism, open at one end with a trihedral angle at the…

A:

Q: Vector A (5, 2) and B = (1, -1) in (x, y) component form. What angle does A + B make with the…

A: Vector A=(5, 2) and B=(1, -1) in the form of (x, y) component form.

Q: Find the weight of a 2 g computer chip.

A: Given:- Mass of the computer chip is  m=2 g    =2 g×10-3 kg 1g    =2×10-3 kg   Required:- We have to…

Q: 8bject as the previous problem, however a different axis of rotation: going through the plate's…

A: given: mass of rectangular plate = M mass of each ball m = M/12 sides of rectangle a and b

Q: In the figure, block 1 has mass m1 = 490 g, block 2 has mass m2 = 550 g, and the pulley is on a…

A:

Q: A horizontal tension force pulls to the right on block A. Block A slides to the right on a…

A:

Q: The illumination of an object by a light source is directly proportional to the strength of the…

A:

Q: A solenoid is 3.0 cm long and has a radius of 0.50 cm. It is wrapped with 500 turns of wire carrying…

A:

Q: Use the position versus time graph to answer the question. What distance does the object travel from…

A: Required ; To find the distance travelled by the object from time t = 0 to t = 3.

Q: Example 2: The two uniform boxes (each with weight 350 lb) are simply stacked as shown. If the…

A:

Q: 6. For vectors = -î – 4ĵ and à = -31 – 2j, calculate: a. Ā+B and its magnitude and direction angle…

A:

Q: An object moves from point A to point B along the trajectory shown, one quarter of a circle. The…

A: An object moves from point A to point B along the trajectory shown, one quarter of a circle. The…

Q: A loop of wire with radius r-0.035m is placed in a region of uniform magnetic field with magnitude…

A: radius (r) = 0.035 m initial magnetic field = 0.65 T final magnetic field = 7.5 T time (t) = 9.5 s…

Q: A 1.80-cm-high object is placed 20.0 cm in front of a concave mirror with a 5.00-cm focal length.…

A: Given, height of an object, ho = 1.80 cm distance fro concave mirror, u = 20.0 cm Focal length of…