The number density of air in a child's balloon is roughly the same as sea level air, 1019 particles/cm3. If the balloon is now 26 cm in diameter, to what diameter (in km) would it need to expand to make the gas inside have the same number density as the ISM, about 1 particle/cm3

Q: Short-wave radio antennas A and B are connected to the same transmitter and emit coherent waves in p...

A: Short-wave radio antennas A and B are connected to the same transmitter and emit coherent waves in p...

Q: I was wrong on this question...what did i do wrong

A: The angle between the two vectors is given by Where Dot sign (.) = Dot product,                 are...

Q: Advanced Physics Question

A:

Q: THIS IS THE QUESTION ITS REFERRING TOO!!! I ONLY NEED THE SECOND QUESTION ANSWERED!! THANKS Imagine...

A:

Q: For a certain sinusoidal wave of intensity I, the amplitude of the magnetic field is B. What would b...

A: I=cB22μ0B=2μ0Ic

Q: Suppose that stars were born at random times over the last 1010 years. The rate of star formation is...

A: Number of stars in our galaxy = 3 x 1011 stars time to consider = 1010 years rate of star formation ...

Q: What is bandwidth in an optical instrument? How does it relate to resolution and noise in an optical...

A: Optical instruments are the instruments that use light as a medium to transfer data. These instrumen...

Q: Two particles in a high-energy accelerator experiment approach each other head-on with a relative sp...

A: The formula to find the magnitude of velocity of particles relative to each other is v'=v-u1-uvc2 He...

Q: Q#03: A and B are Hermitian operators and AB – BA = iC. Prove that C is a Hermitian operator.

A: Given A and B are hermitian And iC= AB - BA        .............(1) Or C= (AB - BA)/i        ..........

Q: A long, straight solenoid has 800 turns. When the current in the solenoid is 2.90 A, the average flu...

A:

Q: Explain why the answers are right (graph needed)

A: Given:     Mass of the rocket, m = 7 kg    Thrust, T = 110 N    Drag force, D = 90 N Free body diagr...

Q: In the reality television show "Amazing Race," a contestant is firing 11 kg watermelons from a sling...

A: Given values, Mass of watermelon, m=11 kg extension in spring, ∆x=1.4 m Initial distance between wat...

Q: F1 = 3.5 at 120 F2 = 5.5 at 50° S of W F3 = 4.5 at 60° S of E Total Resultant Force at Bearing

A: Given information: F1=3.5 at 120°F2=5.5 at 50° S of WF3=4.5 at 60° S of E We have to find the result...

Q: 7.A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N frictio...

A: He pushes the car  a distance of s=20 m.  Frictional   Force                       =35 N .  

Q: Please answer all parts of question 1. Data is given in picture 1. Thank you in advanced!

A:   Part A X-component of average acceleration, ax=vx'-vxt'-tax=898 km/h-645 km/h6.92 s-4.65 sax=111.5...

Q: compare the resistance of ideal ammeter and ideal voltmeter.describe how they should be included in ...

A:

Q: Charges q1 and q2 are placed on the y-axis at y = 0 and y = 26 m, respectively. If q1 = -44.2 pC and...

A: Using Gauss law of electrostatics The net flux through a closed surface is given by Where Qenc = Ch...

Q: 6. If an insect splatters onto the windshield of your car while driving down the highway, (a) what c...

A: (a) In this case for comparing the force of insect and force experienced by car we can use the conce...

Q: Please use the data given to answer parts A,B and C

A: Given: Displacement during the first second is d1=4.00m t= 1 sec At rest, initial velocity of boulde...

Q: List four compounds that you believe should be strongly bound. Explain why.

A: Given: Need to explain about the four compounds that you believe should be strongly bound

Q: 2. (a) The temperature in an auditorium is given by?=x¯+y°-z_Amosquito located at (1, 1, 2) in the a...

A: Solution:   Given that, The Temperature in the Auditorium is given as T=x2+y2-z and it is given Mosq...

Q: The rectangle shown in Figure  has sides parallel to the x and y axes. The position vectors of two c...

A: Consider the following figure,

Q: Which of the following are correct statements of Newton's 3rd law?  Choose all that are correct.   A...

A: Newton’s third law states that for every action there is an equal and opposite reaction. For two obj...

Q: For the hydrogen atom in the 4d excited state fi nd the possible values of n,ℓ,mℓ,ms, and mj. Give th...

A: The 4d excited state implies that the electron’s principal quantum number (n) is 4 and its azimuthal...

Q: An eagle descends steeply onto its prey. Its weight (the gravitational force on the eagle), of magni...

A: Given: Need to find the X- and Y- components of the net external force on the eagle Also, find the f...

Q: 2. A mass weights 6 lb stretches a spring 3 in. The system is acted on by an external force 4sin(8sq...

A: Given the mass is pushed. Therefore, the differential equation for the spring-mass system be given a...

Q: Your physics study partner tells you that the width of the central bright band in a single-slit diff...

A: (a) Given: The wavelength of the laser emitting monochromatic light is λ. The width of the narrow sl...

Q: Q#07: The maximum wavelength of light that a certain silicon photocell can detect is 1.11 micrometer...

A: wavelength of light = 1.11 micro meter this is the maximum wavelength at which electrons are able to...

Q: Equilibrium of Force System. Step by step solution. Thank You

A: Since the given system is in equilibrium therefore net torque and net force acting on the it must be...

Q: The helicopter view in Fig. shows two people pulling on a stubborn mule. Find (a) the single force t...

A: (a) The components of the force F1 is as follows: F1x=F1cosθ1F1x=120 Ncos60.0°F1x=60 N              ...

Q: 3- A bomb of mass M with initial velocity vo and suddenly explodes to two fragments of mass M/3 and ...

A: Given: The mass of the bomb is M.  The initial velocity of the bomb is v0. The gain in the energy eq...

Q: Consider the situatiIon shown and between Box A and Box B. The boxes are speeding up to the right an...

A: In the figure it is given that the external force has been applied only on box A. Let's assume exter...

Q: What is the essential characteristic for an element to serve as a donor impurity in a semiconductor ...

A: An element which when added to a semiconductor provides free electrons to the semiconductor which ma...

Q: On two occasions we have used the gravitational selfenergy of a uniform sphere of mass M and radius ...

A: Given On two occasions we have used the gravitational self-energy of a uniform sphere of mass M and ...

Q: 3. a) Write down major differences between general wave (i.e. sound wave) and EM wave. Explain the p...

A: Given information: We have to write the main differences between mechanical and EM waves and explain...

Q: At the surface of Jupiter’s moon Io, the acceleration due togravity is g = 1.81 m/s2. A watermelon w...

A: Mass is the amount of matter contained in an object. It is a property which is independent of the va...

Q: A and B are Hermitian operators and AB – BA = iC. Prove that C is a Hermitian operator.

A: An operator is said to be hermitian if  Where + means hermitian conjugate.

Q: An antelope moving with constant acceleration covers the distance between two points 70.0 m apart in...

A:

Q: You throw a basketball straight down from the roof of a building. The basketball leaves your hand at...

A: Given Time (t) = 0 Velocity = 9.00 m/s Find the time when the ball is 5.00 m below where it left you...

Q: Advanced Physics Question

A: (b) The input power of the engine is the rate at which the energy is consumed by the engine. From th...