If rada waves have a wavelength of 2.68 cm and a type of polymer (n=1.76) is used to make an airplane invisible to radar, how thick would you make the polymer coating? A. 0.43cm B. 0.76 cm C. 0.38 cm D. 1.33 cm E. 0.86 cm

Q: A wheel 2.05m in diameter lies in a vertical plane and rotates about its central axis with a constan...

A: a)   The required angular speed is, ω=ω0+αt   =0+4.352   =8.7 rad/s b) The tangential speed is, v=ωr...

Q: In front of a spherical convex mirror of radius 38.8 cm, you position an object of height 3.74 cm so...

A: The magnification is, m=-vu=hiho-vu=1.87 cm3.74 cm=12v=-u2   the focal length is the half of the rad...

Q: #3 please

A: Given: The equation of conservation of energy is mgh=12mv2+12Iω2. Introduction: The conservation of ...

Q: In an emergency you can start a car with a manual transmission by putting it in neutral, letting the...

A: If friction and drag are negligible in the system then the total mechanical energy of the system is ...

Q: Then calculate the moment of inertia for a solid cylinder with a mass of 100 g and a radius of 4.0 c...

A:

Q: 1.0 μF capacitor has a potential difference of 6.0 V applied across its plates. a.How much energy is...

A: The capacitance, C is 1.0 μF. The potential difference, V is 6.0 V. The dielectric constant, k is 4....

Q: Circuit Question. Consider the figure circuit and determine: a) The equivalent resistance (Req) of t...

A:

Q: What is the charge of q1 and of q2? -1, -2, -3, +1, +2, or +3

A: Introduction: Drawings using lines to represent electric fields around charged objects are very usef...

Q: When a 0.2 kg mass is hung from a spring, the spring elongates a distance of 0.25 meters from its eq...

A:

Q: The circuit contains 4 bulbs. epsilon = 110V. Which or which bulbs shine the most? a.C b.D c.A d.B e...

A:

Q: E4.A force of 240.0 N acts on a ball for 0.125 s. If the ball is initially at rest: (a) What is the ...

A: The quantities Force impulse and momentum and impulse are directly related. We can derive these rela...

Q: Two long straight wires have currents I0 and I0 as shown. What is the magnitude of the magnetic fiel...

A: Given current in wire at left corner is directed downward below the page and current in wire at righ...

Q: 1. While chasing an armed suspect into an ice rink, a police constable is shot. Fortunately, the co...

A:

Q: 1 (a) Using Townsend's second ionization criterion, consider Io = 4 x 10-7 A. Consider a = 2.28/cm. ...

A: According to Townsend's breakdown criterion, the current produced in a cathode-anode arrangement is ...

Q: 1) Make a prediction:- a) Think of how different the magnitude of the force that the string tension ...

A: 1. (a) Introduction: A force is a push or pulls upon an object resulting from the object's interacti...

Q: Two blocks are connected by a string over a frictionless, masslesspulley such that one is resting on...

A:

Q: Two point charges q1, and q2 are held in place 4.50cm apart as shown in figure. Another point charge...

A:

Q: Which force is responsible for holding a car in a frictionless banked curve? Expaina) the reaction f...

A: The free body diagram is shown below: For a frictionless banked road, the weight of the car can be ...

Q: Students work together during an experiment about Newton’s laws. The students use a setup that consi...

A: Introduction: Newton's second law of motion pertains to the behavior of objects for which all existi...

Q: Suppose a cosmic ray colliding with a nucleus in the Earth's upper atmosphere produces a muon that h...

A: (a) Given: The speed of the muon is 0.99c. The time for which the muon lives is 1.45 μs. Introductio...

Q: Please solve the screenshot (handwritten preferred) and explain your work, thanks!

A: Vector filed, F(x,y,z) =yi^ + zj^ + xk^ Surface S of the hemisphere is given as, x2 + y2 + z2 = 1, y...

Q: A 45.5‑kg box with the dimensions a×b (the width a = 0.6 m and height b = 1.3 m) is standing on a ro...

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you. ...

Q: QUESTION 5: RATES OF CHANGE The motion of a particle is given by the parametric equations x = t2 – 3...

A:

Q: A sample of a monatomic ideal gas occupies 5.00 L at atmospheric pressure and 300 K (point A in the ...

A: For an ideal gas PV = nRT Where P = Pressure of the gas, V = Volume of the gas, n = number of moles ...

Q: A6. A 2 cm*2 cm square loop with resistance of 0.02 2 has one edge of the loop parallel to a long st...

A:

Q: Describe how block copolymers can be used to improve the resolution of lithography.

A: Introduction: Lithography is a planographic printing process that makes use of the immiscibility of ...

Q: 2. Determine the resonance frequency and bandwidth from the graph. Find the Q-factor also. A resonan...

A: The resonance frequency at which the current or voltage will be maximum thus, the resonance frequenc...

Q: A stone is thrown from the top of a building upward at an angle of 30° to the horizontal and with an...

A: The initial velocity of the stone vi=20 m/s. The projection angle θ=30°. Height of the building h=45...

Q: E14.A railroad car with a mass of 33000.0 kg collides and couples with a second car of mass 10000 kg...

A: Given: The mass of first car is m1=33000.0 kg. The mass of second car is m2=10000 kg. The initial v...

Q: A roller coaster includes a long ramp that leads into a Loop-D-Loop. A carriage starts from rest at ...

A: (b) Given: The value of gravitational acceleration is 4.8 ms-2. The mass of the carriage is 80 kg. T...

Q: A ball is thrown straight down at 1.29 m/s and hits the ground 1.07 seconds later. How many meters d...

A: Given  Initial velocity u = 1.29 m/s Time of flight t = 1.07 sec Accelerated = g = 9.8 m/s2

Q: A rectangular loop (10cm x 20cm) of wire with Resistance 100 Ω is moved at a constant speed from rig...

A: Faraday's Law of Electromagnetic Induction (a) Whenever there is a change in the flux of the magneti...

Q: A toy spring launcher is used to launch a 10.5 g object into the air. The spring of the launcher is ...

A:

Q: 4. Relativistic Doppler shift: A spaceship with speed v close to c is moving away from Earth. At reg...

A: (a) Given: The speed of the spaceship is v. The time interval in which the signal is sent in the shi...

Q: A wheel starts from rest and rotates with constant angular acceleration to reach an angular speed of...

A: (a) The expression for the angular acceleration of the wheel is as follows: α=ωf-ωit                ...

Q: I included two pictures. Please show me how to approach the problem in the correct manner based on t...

A: (a) Given: The diagram is as follows: Introduction: Newton's second law says that when a constant f...

Q: F A force is applied to a wheel as shown above. In what direction does the torque point? No Torque O...

A: Using the right hand rule, curl your fingers in the direction of rotation then thumb will give the d...