Echolocation is a form of sensory perception used by animals such as bats, toothed whales, and dolphins. The animal emits a pulse of sound (a longitudinal wave) which, after reflection from objects, returns and is detected by the animal. Echolocation waves can have frequencies of about 100,000 Hz. (a) Estimate the wavelength of a sea anmal's echolocation wave. (b) If an obstacle is 100 m from the animal, how long after the animal emits a wave is its reflection detected?

Q: A Fahrenheit thermometer and a Celsius thermometer indicate the same magnitude of temperature of an…

A: Given For a given temperature, the Fahrenheit and Celsius thermometer indicate the same magnitude of…

Q: I need help with this homework problem.

A:

Q: Reflected = Incident n₁ sin Incident = n₂ sin Refracted R f= spherical mirrors 2' (1) (2) (3)

A: Given: Data about  is given.

Q: Consider an image formed by refraction at the given spherical surface. Which of the following would…

A: Given:-  Consider the image formed by the refraction at the given spherical surface of refractive…

Q: Wires A and B, having equal lengths of 42.7 m and equal diameters of 2.87 mm. are connected in…

A:

Q: Design the following circuit in such a way that the MOSFET operates at a drain current, ip, v2…

A: Solution: Apply Kirchhoff's voltage law at the output terminal.  2.5=iDRD+v0…

Q: 4. A skier is going down a hill with an angle of 30°. His weight is 60kg and his normal force is…

A: Given- Angle made by hill to horizontal (θ) = 300 Weight of skier (W) = 65 kg (W = mg ) Mass (m) =…

Q: Kindly answer this and please provide the correct answer thank you.

A:

Q: How does the orbital period of a planet change if the radius of its orbit is oubled? * a. Increases…

A: According to Kepler’s law of periods, the square of the time period of revolution of a planet around…

Q: A ski starts from rest and slides down a 28° incline 55 m long. • Part A If the coefficient of…

A: Given data: Angle of inclination, θ=280 Distance covered, d=55 m Coefficient of friction, μ=0.090

Q: 1. (Young, et. al., Sears and Zemansky's University Physics, 12th Ed.) Charge q₁ = +55 nC and charge…

A: Given Data Charges are given as q1=+55 nC=+55×10-9 C and q2=-35 nC=-35×10-9 C Separation between the…

Q: I need help with this homework problem.

A:

Q: 36 Given in the table are data on the planets in our solar system. Planets Radius Moons Distance…

A: Analyzing the above table, it can be concluded that as the distance of a planet from the Sun…

Q: a state highway patrol car radar unit uses a frequency of 9.00*10^9 Hz. What frequency difference…

A: Given that:-Original frequency, F=9.00×109 Hzrelative speed of object, v=28.6 m/sSpeed of light,…

Q: How far from Earth must a space probe be along a line toward the Sun so that the Sun's gravitational…

A:

Q: If the weight of a body immersed in a fluid exceeds the buoyant force then the body will rise until…

A: The buoyant force is the resultant force on the body exerted by the fluid. If the weight of the body…

Q: A negative charge is shot through a small hole as shown with an initial kinetic energy. As it…

A: As given positive and negative charges  the direction of electric field will be from positive to…

Q: Mechanical energy is equal to: A) Kinetic energy + Chemical energy B) Kinetic energy + Potential…

A: We are aware that kinetic energy and potential energy are combined to form mechanical energy.It is…

Q: 50. identical, of ends to the line each as shown in given an identical in static equilibrium,…

A:

Q: PHYSX3B Problem Set 1 The set is due 02/21/2023 by 9:00 pm conh Topics: Coulomb Force, Electric…

A: (F1)=kq1q2r2=9×10⁹×1×10−6×−2×10−60.05²   =−7.2×10−6N Explanation:   Like charges repel…

Q: 7. The martian craft has destroyed our poor drone! interplanetary missile carrying aircraft takes…

A:

Q: In the first test the rider accelerates from 48 km/h to 80 km/h, over a distance of 190 m whilst…

A:

Q: Which of the following statements about pressure is correct? Select one: O Pressure is directly…

A: Q. Given that Pressure ( P ) Let start with the definition of the pressure.

Q: Simplify 16'x (-)- X -0

A:

Q: ure. Briefly explain:

A: The melting point of a substance is the temperature at which it changes state from solid to liquid.…

Q: Give the vector in cartesian coordinates that extends from B(4, 20degrees, 10degrees) to W(7,…

A: The conversion of spherical polar coordinates into cartesian is given by…

Q: You stand in an elevator on a scale. If the scaled reads 9/10 of your weight, what is the…

A:

Q: Mahamos is dragsing a box full of books HoM his office to his Car The box and bookks Hogether hove a…

A: Given data:  Weight (W) = 134 N Coefficient of static friction (μs) = 0.55 Required: The force…

Q: HERSTE A CD has a diameter of 12.0 cm. If the CD starts from rest and has a constant angular…

A:

Q: A thin 12-cm-long solenoid has a total of 460 turns of wire and carries a current of 1.9 A.

A:

Q: I need help with this problem.

A:

Q: A glider flying in the air land on a track with a velocity 7 m/s and has to run for a while for a…

A:

Q: 55. What is the ratio of the intensity of a given sound to that of one that is 100 decibels higher?

A: Write the formula for the sound intensity level in dB.

Q: A mass M attached to a spring oscillates with a period of 2 s. If the mass is increased by 2 kg the…

A: We are aware that a mass M suspended from a spring oscillates with a 2 s period.The time lengthens…

Q: The electric potential at point A is 115 V, at point B it is -149 V. A 0.30 C point charge moves…

A:

Q: answer with your understanding and show the point with the directior -a +20

A: The expression for the electric force by a charged particle is given as F=kq1q2r2 So we have to…

Q: [b] About how many joules of heat energy does it take to cook a pound of pasta? Use reasonable…

A: Mass=0.45kg

Q: 2. The nearest grocery is 60 m, east from your house. You are walking at 1.2 m/s for 15.0 s toward…

A:

Q: A light ray in plastic (n=1.45) hits an air/plastic boundary as shown below. The ray will be.? 45°…

A: The ray will get refracted if the angle of incidence is smaller than critical angle. And will be…

Q: The image of a distant object created by a concave mirror will be. a. formed at the focal point of…

A: Given The image of a distant object created by a concave mirror will be, as following below.

Q: 1. A football player kicks a ball at an angle of 36 degrees from the horizontal with an initial…

A:

Q: A concave mirror with a radius of curvature of 40 cm forms an image 15 cm behind the mirror. Where…

A: Focal length = radius of curvature/2

Q: A ball is thrown vertically upward with a veloaty of 12 m/s.What maxtmum hetg ht the ball is the…

A: In the problem, initial speed is u = 12 m/s At maximum height its velocity must be v = 0 m/s

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.