A model of a helicopter rotor has four blades, each of length 3.6 m from the central shaft to the blade tip. The model is rotated in a wind tunnel at a rotational speed of 570 rev/min.

Q: Can you show me how you came up with the calculation for 9.42 N*m?

A: In the original solution we got  torque,τ=0.25π(12i+4j-10k) or τ=0.25π(12i+4j-10k)=τxi+τyj+τzk…

Q: A small object is connected to a lightweight cord of length L = 1.40 m that is tied to a point P, as…

A:

Q: What is the answer

A:

Q: How many protons does Catom contain?

A: Given atom is  Carbon ( 146C)   Mass number = 14  Atomic number = 6  Since, In any atmos number of…

Q: Someone wanted to build a scale model of the atom with a nucleus 1.4 m in diameter.  How far away…

A: Radius of nucleus=n=10-15 mRadius of orbital electron=e=10-10 mScale model radius of nucleus =N=1.4…

Q: The 20-g bullet is travelling at 400 m/s when it becomes embedded in the 2-kg stationary block. The…

A:

Q: density

A: Given: Mass of object is m=11 kg Displaced volume of water is V=1.4 L Note: 1 L=10-3 m3 Density of…

Q: Consider the figure below. (Let R₁ = 2.30 , and R₂ = 1.60 M.) 24.0 V 12.0 V I R₁ Calculate 11, 12,…

A:

Q: A man with weight w is riding an upward bound elevator. The elevator cord then snaps ans the…

A: Given, weight of man is W. Elevator is going upward. After some time, Elevator begins to fall. We…

Q: Two capacitors provide an equivalent capacitance of 28.00 μF when connected in parallel and 7.00 uF…

A:

Q: Consider the circuit shown in the figure(Figure 1). Suppose the four resistors in this circuit have…

A:

Q: Four moles of a diatomic ideal gas are taken through a three-process thermodynamic cycle. The gas…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: 3) A spring mechanism launches a skateboarder horizontally, as shown. Neglect friction for this…

A: Given: mass of the person, m = 38 kgspring constant of the spring, k = 1750 N/mcompression of the…

Q: Each capacitor in the figure has a capacitance, C. What is the equivalent capacitance between points…

A:

Q: A 9.00 g bullet has a speed of 1.10 km/s. Part A What is its kinetic energy in joules? ▸ View…

A:

Q: A horizontal pipe of cross section 8 cm2 has a constriction of cross section of 2 cm2. Gasoline…

A: Answer the following question is

Q: A parallel-plate air capacitor with a capacitance of 250 pF has a charge of magnitude 0.146 μC on…

A:

Q: Define energy. List at least four historic sources of energy. How are they different from energy…

A: Energy is a measure of the ability to do work, move an object, or cause a change. It exists in many…

Q: Photoelectrons from a material whose work function is 2.27 eV are ejected by 502 nm photons. Once…

A: Given Data :Work Function of the material φ = 2.27 eVwavelength of incident photon λ =  502 nmmass…

Q: A box is sliding up an incline that makes an ar with respect to the horizontal. The coefficier…

A:

Q: 3. A 0.150 kg piece of ice at 255 K is added to 0.500 kg of water initially at 360 K. The following…

A: The mass of ice is 0.150 kg. The temperature of ice is 255 K. The mass of water is 0.500 kg. The…

Q: A proton is at rest at the plane vertical boundary of a region containing a uniform magnetic field B…

A: Now

Q: current of 22.0 mA is maintained in a single circular loop of 4.00 m circumference. A magnetic field…

A: current = i = 22 mA = 0.022 A Circumference = 2π r = 4 radius = r = 42π=0.64 m

Q: A rocket is launched from rest and moves in a straight line at 40.0 degrees above the horizontal…

A: Given Time t=25 s Acceleration  of rocket a=70m/s2 Angle of inclination =40°

Q: 500 km/h An airplane flying horizontally with a speed of 500 km/h at a height of 750 m fires a crate…

A:

Q: The Schwarzschild radius RBH for an object of mass M is defined as RBH = 2GM c² where c is the speed…

A:

Q: The Schwarzschild radius is the distance from an object at which the escape velocity is equal to the…

A:

Q: 2. A playground is on the flat roof of a city school, 6.00 m above the street below. The vertical…

A: Since, it has been specified to answer part (c) only, so I am only solving part (c), provided in the…

Q: Qualitative characteristics RADIONUCLIDES (characteristics) Quantitative characteristics

A: Radionuclides are atoms that are radioactive and can emit ionizing radiation. These atoms have…

Q: Name: Problem #3: A 380 L tank contains steam, initially at 400°C, 3 bar. A valve is opened and…

A:

Q: A charged particle with a mass of .00056 KG is going 937M/S when it is exposed to 413 T magnetic…

A: Given, velocity, v = 937 m/s Mass, m = 0.00056 kgMagnetic field , B = 413 TMagnetic force , FB = 0.4…

Q: The drawing shows four insulated wires overlapping one another, forming a square with 0.050-m sides.…

A:

Q: In the table below the velocity directions of various particles & the external magnetic field each…

A:

Q: What is the potential difference across the 20 ΩΩ resistor?

A:

Q: The loop below is immersed in an increasing magne Direction of induced current: no induced curent ✓…

A:

Q: 4.10 ●● A dockworker applies a constant horizontal force of 80.0 N to a block of ice on a smooth…

A:

Q: Part 3: What goes in position F? A) x-ray B) visible C) unltraviolet D) radio waves E) infrared F)…

A:

Q: You drive down the road at 35 m/s (79 mi/h) in a car whose tires have a radius of 32 cm ▾ Part A…

A:

Q: A submarine is stranded on the bottom of the ocean with its hatch 25 m below the surface. In this…

A:

Q: Atoms can be ionized by thermal collisions at very high temperatures. One such ion is Ca1⁹+, a…

A:

Q: Submit 3) How much energy is transferred during a severe strike? (Express your answer to two…

A:

Q: When mass M is at the position shown, it is sliding down the inclined part of a slide at a speed of…

A:

Q: Two long, straight wires are separated by 0.120 m. The wires carry currents of 7.3 A in opposite…

A: distance between the wires, d=0.12 m current in wires, I = 7.3 A in opposite direction  distance of…

Q: 5 A 3.35 cm tall object is placed 11.6 cm in front of a concave mirror whose focal length is 17.5…

A:

Q: A solid object has density (p) wich has been measured on Earth. The gravitational acceleration on…

A: ρ=MassVolume=MV

Q: Two long, straight wires are separated by 0.120 m. The wires carry currents of 10 A in opposite…

A: Magnetic field due to current carrying wire: If current is flowing in the wire in x direction then…

Q: Which of the following statements are true? Choose all that apply. A changing magnetic field will…

A: Choose true statements.

Q: In the figure the ideal batteries have emfs &₁ = 9.0 V and 2 = 0.500 E₁, and the resistances are…

A:

Q: Two circular loops of wire, each containing a single turn, have the same radius of 3.30 cm and a…

A: Given data- The radius of each loop is: r  =3.30 cm    =0.033 m The current in each loop is: I =…

Q: information given in the figure for the series RCL circuit to determine the phase angle between the…

A: Given  R = 150  Ohm  L = 0.035 H  C = 1.75×10-6 F  f = 60 Hz  angular frequency ω = 2πf = 2×3.14×60…

Projectile Motion