A giant molecular cloud is 30 pc in diameter and has a density of 330 hydrogen molecules/cm^3. What is it's mass in units of solar masses? (Notes: the volume of a sphere is 4/3pieR^3 , and the mass of a hydrogen atom is 1.67 x 10^-27 kg. A hydrogen molecule consists of 2 H atoms.)

Q: A hoop is launced up an incline with an initial translational speed vo as shown below. At some point...

A: The figure for the given problem is as follows:

Q: Two cars start from rest at the origin at t=0. The first has a known, constant acceleration k. The s...

A: Distance traveled under constant acceleration

Q: 12.49 A ball is thrown upwards from the top of a tower with an initial velocity of 15 m/s. Two secon...

A: Given information: Here, v0 is the initial velocity of the ball thrown upwards.

Q: (a) Define self and mutual induction. Give practical examples of both inductions. (b) A circular coi...

A:

Q: Indices of planes. Consider the planes with indices (100) and (001); the lattice is fcc, and the ind...

A: The (100) plane is parallel to the y-z plane and has an intercept at x = a. This plane intercepts th...

Q: For a series RL circuit supplied from a voltage source, discuss in details how theresistance affects...

A:

Q: Heat Flow. The heat flow vector H = kVT, where T is the temprature and k is the thermal conduc- tivi...

A: Given: Temperature, Here k is a thermal conductivity. Prove:  

Q: A mass-spring system driven by a sinusoidal external force is governed by the following nonhomogeneo...

A: The given differential equation be defined as,

Q: Advanced Physics Question

A: Consider two vectors in the direction of the body diagonal

Q: Advanced Physics Question

A: The two isotopes of the lead (82) are Pb204 and Pb205. Here, Pb205> Pb204 Let the mass of the two...

Q: 2. A person with a normal lens-to-retina distance wears contact lenses with an optical power of 1.54...

A:

Q: For the Kinetic formula, Ek, is certainly the energy of a mass, m, motion, of course, is v2. Ek = 1/...

A: When a charge moves in an electric field it also carries kinetic energy. And that kinetic energy be ...

Q: When ultraviolet light with a wavelength of 400.0 nm falls on a certain metal surface, the maximum k...

A:

Q: 6. Write Biot-Savart's Law formula for a coil, define each parameter in the formula and explain why ...

A:

Q: a. Find the mathematical expressions for the transient behavior of thevoltage vC and the current iC ...

A: Hey, since there are multiple subparts question posted, we will answer first three questions. If you...

Q: Calculate the radiation dose in rem per year (365 days) for the lungs of a weapons plant employee wh...

A: Energy emitted per year

Q: You have been provided with specifications for case materials in the table below. However, you may a...

A: Force diagram At the drop point During impact

Q: A particle moves in a dimension subjected to a force associated with an energyshape potentiala) find...

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

Q: (A) Show that the rate of change of the mass m of the fluid contained in a region Q is dm Op -dv. %3...

A: Hey, since there are multiple subparts question posted, we will answer first three questions. If you...

Q: Hello, Can you help me for question 3? Thank you.

A: Electric field between two parallel plates

Q: Since r indicates the distance from the axis of the wire, consider the R radius cylinder where the c...

A:

Q: Two discs rotate freely about their vertical axis passing through their centers in the horizontal pl...

A: Conservation of angular momentum

Q: A solid ball of radius r begins to roll down a hemisphere with radius R. Find the angular speed of t...

A:

Q: Need help

A:

Q: Figure shows a hypothetical speed distribution for a sample of N gas molecules. Find probability of ...

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

Q: I need the answer to that 7th question but it's connected to the first question which I added as an ...

A: When a particle of charge q moves at velocity v in uniform magnetic field B, It experiences a Lorent...

Q: 4. A person with a normal lens-to-retina distance wears contact lenses with an optical power of 1.54...

A:

Q: A spring mass oscillator hanging from the ceiling is damped by a vane immersed in a liquid. The mass...

A:

Q: There are two kinds of radioactive nuclides with thehalf-life 6h and 8d. If their activity are same ...

A: Basic Details The activity of the nucleoid depends on the nuclei number and the half-life of the rad...

Q: Touch-tone telephones

A:

Q: A force F = 61 – 3j – R passes through the point B whose position vector is b= î – 4j + R. Determine...

A:

Q: A star is transited by a planet. From the measured period T and the transit duration t alone, show t...

A: From Kepler’s law,

Q: Suppose you have a sphere (e = 0.42) of radius (r = 25 cm) is at 27 Co. It's placed in a room with a...

A: Hey, since there are multiple subparts question posted, we will answer first three questions. If you...

Q: A circular loop of radius b is placed on the z= 0 plane and carries a steady current I. 2. (a) Deter...

A: Let the circular be defined in XY-plane. Let the current (I ) flow is in a clockwise direction. Let’...

Q: There is strong evidence that Europa, a satellite of Jupiter, has a liquid ocean beneath its icy sur...

A: Basic Details The acceleration due to force of gravitation depends on the mass of Europa, the gravit...

Q: Quantum solid. In a quantum solid the dominant repulsive energy is the zero- point energy of the ato...

A:

Q: . A 5.5-kW water heater operates at 240 V.   i. Should the heater circuit have a 20A or a 30A circui...

A: i) The current flowing through the circuit is, As the current flow through the circuit is less than...

Q: A car is traveling at 50.0 km/h on a flat highway. (a) If the coefficient of friction between road a...

A: Newton’s second law in the horizontal direction

Q: 1. Three objects on a flat frictionless table (see figure) with the same speed v are about to collid...

A: Given that three objects moving with speed v collide and stick together. (A). (1). The momentum of t...

Q: 3. Iodine-120 has a half life of 1.35 hours. If you start off with a sample which has an activity of...

A:

Q: I need the answer to that 3rd question but it's connected to the first question which I added as an ...

A: (3) In the velocity selector region, magnetic force balances the electric force and thus the electro...

Q:

A:

Q: 5

A:

Q: A straight right-circular cylindrical solenoid of radius R and length L> R is wound wvith n turns of...

A: The figure showing a solenoid is named as Fig. A is as follows: The figure be is defining the overv...

Q: 2

A:

Q: 5. Calculate the Sun’s altitude angle and azimuth angle at 3.00 P.M on 28th of September 2010 for a ...

A:

Q: 2. The mass attenuation coefficient of copper is 0.0589 cm2/g for 1.0-MeV photons. Find required thi...

A:

Q: I could estimate the area of the thumbnail with the formula of a square like a=a^2 to use as a refer...

A: The formula of pressure is given as, Force per unit area P=F/A The SI unit of pressure is Pascal. 1 ...

Q: frequency with pipes open/closed

A: Lowest frequency of the string