35. A 2.0 kg mass hangs from a pulley wheel of radius 0.25 m. The pulley wheel rotates and is speeding up at 8.0 rad/s². What is the magnitude of the tension force acting on the mass? counterclockwise a) 8 N b) 10 N c) 12 N d) 16 N e) 20 N 0

Q: A 4900-pF capacitor is charged to 120 V and then quickly connected to an inductor with 83-mH…

A:

Q: Mr. Richmond is attempting a death defying stunt by firing himself out of a cannon. The cannon will…

A:

Q: The coil in a loudspeaker has 40 turns and a radius of Part A

A: Number of turns, N = 40 Radius, r = 4.2 mMagnetic field, B = 0.36 TCurrent, I = 260 mA

Q: An AC generator is to have a maximum output of 332 V. Each coil has an area of 0.146 m² and a…

A:

Q: A spherical shell with a mass of 1.59 kg and a radius of 0.37 m is rolling across the level ground…

A:

Q: alpha particle (m = 6.7 × 10−27 kg, q = +3.2 × 10−19 C) has a speed of 30 km/s at point A and moves…

A:

Q: Why couldn't atomic nuclei exist when the age of the universe was less than 2 minutes?

A: The first few minutes after the Big Bang, when the universe was extremely hot and dense, are…

Q: The flight condition when an aircraft is losing height or altitude. (answer in lowercases) Answer…

A: The correct term for the flight condition when an aircraft is losing it's height or altitude is…

Q: Determine the distance from the upper surface of the symmetric double-T beam cross section to the…

A:

Q: ..7 SSM www A stone is dropped into a well. The splash is heard 3.00 s later. What is the depth of…

A: The speed of the sound in the air is .The equation of the motion is

Q: circular disk with a radius of 0.43 m is subject to 2 tangentially applied forces. The disc is fixed…

A:

Q: 22. A 200 kg roller coaster begins from rest. The ride reaches a maximum height of 30 m and a top…

A:

Q: mobile has a mass of 2100 kg and a velocity of +17 m/s. It makes a rear end collision with a…

A:

Q: A uniform 8.00 m, 1500 kg beat is hinged to a wall and supported by a thin cable attached 2.00 m…

A:

Q: radioactive isotope decays by - emission with a half-life of 1.0 min. During the first 1.0 min, a…

A:

Q: A 5,000 lbs. aircraft has an excess power of 75 hp at sea level. If the service ceiling is 3,657.6…

A: To determine the rate of climb at the absolute ceiling, we must calculate the excess power available…

Q: 5. Three polarizing disks whose planes are parallel and centered on common axis. The directions of…

A:

Q: A fish tank filled with water is made of flat glass walls of n = 1.74. What is the maximum angle of…

A:

Q: A butterfly moves with a speed of v = 12.0 m/s.  The x-component of its velocity is 8.00 m/s.  The…

A:

Q: Problem 3: A device is turned on and the current increases from 0 to 4.75 A in 0.075 ms later.…

A:

Q: Kasim asks Sarah whether there is an acceleration on the system in the y-direction. Which of Sarah's…

A:

Q: + 12 V - Μ 4Ω M 12 Ω Μ 24 Ω Α 3Ω Α 5Ω 3V- +

A:

Q: A wire is formed into a circle having a diameter of 10.3 cm and is placed in a uniform magnetic…

A: Diameter, d = 10.3 cm = 0.103 mField, B = 2.92 mT = 0.00292 TCurrent, I = 5 AMaximum torque, τ = ?

Q: The figure below shows a side view of a car tire before it is mounted on a wheel. Model it as having…

A:

Q: pulled out of the passenger loading area by a tractor. a) An 1800 kg tractor exerts a force of 1.75…

A:

Q: A heavy metal tray with mass 25.0 kg tray lies on a table. On top of the tray is another stone with…

A: Mass of the tray (M) = 25.0 kg Mass of the stone (m) = 12.0 kg Applied force (F,) = 25.0 kg

Q: Box 1 (with mass m = 7.1 kg) is on a frictionless table moving with a velocity Vo = 7.1 m/s. It…

A:

Q: The label on a candy bar says 400 Calories.  Assuming a typical efficiency for energy use by the…

A:

Q: Shown is an ideal permanent bar magnet. The point X is inside the magnetic material while point Y is…

A:

Q: A beam of protons with various speeds is directed in the sitive z direction. The beam enters a…

A:

Q: Let's examine the mass-spring system with a mass of 0.9 kg and a spring constant of 2.9 N/m,…

A:

Q: A high-wire walker always attempts to keep his center of mass over the wire (or rope). He normally…

A:

Q: Problem 7: A conducting rod spans a gap of length L = 0.075 m and acts as the fourth side of a…

A:

Q: Problem 8: A rectangular coil with N = 1120 turns is moving to the right with a speed v = 7.4 m/s…

A:

Q: 20 J of heat are removed from a gas sample while it is being compressed by a piston that does 30 J…

A:

Q: Two point charges q = -8.50 µC are fixed 10.0 cm apart along a horizontal bar, as shown in the…

A:

Q: A weightlifter curls a 28 kg bar, raising it each time a distance of 0.55 m.  How many times must…

A:

Q: 344454 12 13 14 15 16 17 18 19 20 Observe the behavior of the graph. What is the form of the…

A: height = y vertical component of velocity = Vytime = t

Q: 04. a. A control volume is an arbitrary volume of space through which fluid can flow. Let the…

A:

Q: How did you get t2=h/343?

A:

Q: The circuit contains a power supply and two resistors as shown. What is the voltage across resistor…

A: According to Kirchhoff's voltage law " the algebraic sum of potential difference in a loop is…

Q: A mass/spring system is set into simple harmonic motion having a period of 0.62 s. If the mass…

A: In general, a body is said to be in simple harmonic motion when its restoring force is in proportion…

Q: 2. To test the durability of an engineered plastic container, its inventor drops a sample of it from…

A:

Q: A 20%-efficient car engine accelerates the 1500 kg car from rest to 20 m/s How much energy is…

A: Efficiency is The mass of the car is Initially, the car is at rest so Final speed of the car is…

Q: Figure 1 shows the viewing screen in a double-slit experiment with monochromatic light. Fringe C is…

A:

Q: A box of mass 4.8 kg slides on a horizontal frictionless table and collides with another box of mass…

A: Given data:mass of box 1, m1 = 4.8 kgmass of box 2 = 3 kgInitial veloctiy of box 1 = 4 ms-1Initial…

Q: An inductor is connected to an AC generator. ▼ Part A As the generator's frequency is increased,…

A: If Vr be the rms voltage across the inductor, then the rms current through the inductor will…

Q: A merry-go-round rotates from rest with an angular acceleration of 1.85 rad/s2. How long does it…

A:

Q: Calculate, in Tesla squared meters, the magnitude of the change in the magnetic flux.  ΔΦ = ______…

A:

Q: A7.46 kg object oscillates back and forth at the end of a spring whose spring constant is 37.8 N/m.…

A: The mass of object is The spring constant is The speed of the observer is Note:Speed of light is…

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.