Відео

A rectangular loop of wire is placed next to a straight wire, as shown in the figure. There is a current of 3.5 A in both wires. Determine the magnitude and direction of the net force on the loop *Giancoli (7th) Ch 20 P31

Compute the voltage drop along a 21-m length of household no. 14 copper wire (used in 15-A circuits). The wire has diameter 1.628 mm and carries a 12-A current. *Giancoli (7th) Ch18 P 17

A stuntman drives off a cliff traveling horizontally at 10.0 m/s. He lands 3.00 seconds later. a. Sketch his motion diagram by putting position dots at t = 0.00 s, 1.00 s, 2.00 s, and 3.00 s. b. Determine how far from the base of the cliff the car lands. c. Determine the height of the cliff.

A 1000-L container is approximately in the shape of a cube. Note that 1 L is (by definition) exactly equal to 1000 cm^3. a. Determine the side length of this cube. b. Assuming the container is filled with seawater with density equal to 1.03×10^3 kg/m^3, what is the mass of water contained within?

The U.S. Treasury Department reports that one dollar bill is 6.14 inches wide and 2.610 inches tall. One U.S. quarter (dollar) is a circular metal coin with diameter equal to 0.955 inches. a. What is the area of one dollar? b. What is the area of one quarter? c. What is the combined area of 50 one-dollar bills? d. What is the area of one dollar with the shape of one quarter cut out of it?

The position of a rabbit along a straight tunnel as a function of time is plotted in the figure a. What is its instantaneous velocity at t = 10.0 s? b. ...at t = 30.0 s? c. What is its average velocity between t = 0 and t = 5.0 s? d. ...between t = 25.0 s and t = 30.0 s? e. ...between t = 40.0 s and t = 50.0 s? *Giancoli (7th) Ch2 P57

A football is kicked at ground level with a speed of 18.0 m/s at an angle of 31.0° to the horizontal. How much later does it hit the ground? *Giancoli (7th) Ch3 P22

Rotation: Torque and force with connected objects

SHM: Simple pendulum motion, calculus

Rotation: Static equilibrium with an angle

Rotation: Angular momentum conservation and energy analysis

Rotation: Computing moment of inertia

Rotation: Free rolling and conservation of energy

Rotation: Free rolling

Momentum: 2-d collisions

Energy: Conservation of energy using *complete* gravitational PE

Energy: Work-kinetic energy theorem with a varying force

Energy: Conservation of energy with springs and gravity

Dynamics: Newton's 2nd law and inclined plane without friction

Dynamics: Newton's 2nd law and forces misaligned with motion

Dynamics: Newton's 2nd law and forces aligned with motion

Dynamics: Connected objects and Newton’s 2nd and 3rd law

Dynamics: Newton’s 2nd law in 1d with kinematics 02

Kinematics: 1-d motion, calculus, graphing

Kinematics: Circular motion

Kinematics: 1-d motion, motion diagrams, graphing

MATH: Estimates and Approximations 01

Kinematics: 1-d free fall 01

Kinematics: 1-d motion