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A .3kg iron ingot at 223?0C and a .5kg aluminium bar at 345?0C are dropped in...
Light of wavelength 270 nm strikes a metal whose work function is 1.9 eV. What is...
?A body of ideal gas exists at a certain temperature, pressure, and volume, inside of a...
Please explain and give example: Graphing results. Interpreting graphs. Lines, paraboias and slope. Please type answer...
Bovine serum albumin (BSA) is a biochemically useful protein. A 0.239 gram sample of bovine serum...
In general, a liquid state will have higher entropy than a solid-state. true and false
Explain why the chemical formula of ionic compounds are given as empirical formulas while covalent compounds...
i need the Draw for the energy level plese Consider the n -4-n- 3 emission line...
The equilibrium constant expression for a reaction can be written if the balanced equation is known....
Physics: 1/ A/ Select all correct statements about northern lights: A- charged particles like cosmic rays...
What wavelengths will form standing waves? What are harmonics, overtones, and beats?
Two cars drive on a straight highway. At time t=0, car 1 passes mile marker 0...
if thunder is heard 9s after the lightening, how far away is it?
For 470.0 mL of a buffer solution that is 0.160 M in CH3CH2NH2 and 0.145 M...
(i) Differentiate between Fresnel and Fraunhoffer diffraction (ii)Deduce the missing order for a double slit Fraunhofer...
Collagen is a very stiff fibrous protein with a failure strain of 8% to 10%. In...
How many mL of hydrogen would be collected at a pressure of 765 torr and 22oC...
2. A section of membrane behaves as a capacitor. a) Find the capacitance C if the...
One winter evening, after drinking a soda, you tighten the cap back on its empty 20...
One summer morning, after drinking a soda, you tighten the cap back on its empty 20...
How many grams of ice at -14°C must be added to 710 grams of water that...
A diffraction grating has 1 250 rulings/cm. On a screen 1.50 m from the grating, it...
A+2B --> C -ra=kCaCb^2 Where k-0.01 s1(gmoLt 500c) CA-concentration of A. gmolL CB-concentration of B, gmol/L....
An astronomer measures the apparent brightnesses (i.e. flux, or Watts/m^2) of Star A and Star B...
It was found that the composition by weight % in coral skeleton was 21.23 for calcium,...
State whether the following are reversible processes. Explain your reasoning. (a.) One mole of (ideal) diatomic...
What is the minimum amount of [Ag+] that a cell is able to function (EMF=0). Use...
What is the basic principle of Monte Carlo algorithm in radiotherapy? Describe methods to ensure the...
Write Bronsted acid-base equilibrium equations for the following: b) Show the acid-base conjugated species, labeling all...
A ball is thrown off the top of a 75 ft high building. If it strikes...
Coulomb's law for the magnitude of the force Fbetween two particles with charges Q and Q′separated...
1. Calculate the angular acceleration of an object that makes 500 revolutions in 5 seconds if...
On the Moon\'s surface, lunar astronauts placed a corner reflector, off which a laser beam is...
What are materials with small coefficients of thermal expansion ( a measure of how much a...
Assuming the hill is (d=23.4 m ) long , determine the work done on the wrestlerby...
Initially at rest, a small copper sphere with a mass of 1.71
Consider a beam of light with a wavelength λ = 403-nm incident onto a metal surface,...
The famous Black Planet Squanch has a ra- dius of 10^6 m, a gravitational acceleration at...
draw the structure (R)-3-bromocyclopentene
6. What is the difference in work needed to push a 100 kg crate (at constant...
Build Best Practice Guidelines for Medical Office Assistants in a document. The procedures could include the...
A 177g air track glider moving at 0.350 m/s collides elastically with a 133-g glider initally...
An infinitely long current carrying wire carries current I2. Imagine a wire carrying current I1 of...
Part A) A 1401 kg car is traveling down the road at 83.4 km/h. While traveling...
The enzyme-catalyzed conversion of a substrate at 298 K has Km = 0.032 mol dm-3 and...
A mass of 9 kg is placed on an incline with friction and no additional forces...
1.When a charge q is placed at a certain point in an electric field, it experiences...
OSHA currently sets an exposure limit of 50 mSv per year for worker exposure to radiation....
For the following analytes and situations, indicate an appropriate spectroscopic technique and briefly explain why your...
The earth's magnetic field, with a magnetic dipole moment of 8.0×1022Am2, is generated by currents within...
In handheld optical instrument used under water light is incident from water onto the plane surface...
A ham sandwich consists of one slice of ham (10 grams) and two slices of bread...
Use the following information on Al to determine the amounts of heat for the three heating...
You are driving North through an intersection in a 55 mi/hr speed zone, when the local...
A neutron collides elastically with a helium nucleus (at rest initially) whose mass is four times...
What mass of calcium is required to produce 4.2 g of calcium bromide, starting with 3.4...
A 4kg block is given a small speed of 1.5 m/s down a 23(degree) incline with...
the reaction of lithium naphthalene (LiC10H8) with an alkyl fluoride is an sn2 reaction for this...
An electron is moving in the direction of a uniform electric field. What happens to the...
Select True or False for the following statements about electromagnetic waves. True False Blue light has a...
is the structure if acetominophen similar to be structure of aspirin? In what way? would acetaminophen...
Sodium saliylate has been used as an analgetic.Drow the structure of this compaund and show how...
3. A buffer is made by adding 0.3 moles of CH3COOH and 0.3 moles of NaCH3COO...
8. A 0.40-kg mass is attached to a spring with a force constant of k =...
a sinusoidal transverse progressive wave of amplitude 50mm, wavelength 200mm, is travelling along the positive direction...
Copper dissolved in nitric acid produces copper(II)nitrate. After reaction with sodium hydroxide and heating, copper nitrate...
The equilibrium constant, K, for the following reaction is 1.80×10-2 at 698 K. 2HI(g) --> H2(g)...
A uniform disk of mass Mdisk = 4 kg and radius R = 0.24 mhas a...
1. Without corrective lenses a near sighted person can see clearly only objects that are within...
A glider of mass m1 = 8 kg has a velocity v1i = +2 m/s before...
At the center of our galaxy, the Milky Way, there is an object known as Sagittarius...
On an icy winter day, the coefficient of friction between the tires of a car and...
An 0.025 kg bullet traveling at 700 m/s strikes and passes through the center of mass...
The thermodynamic properties for the species involved in the Zn(s)|Zn2+(aq)||Pb2+(aq)|Pb(s) cell are given below. Substance ∆G°f...
The average kinetic energy of the molecules in a gas sample depends only on the temperature,...
Two cars slide on the air track in Regener Hall. The blue car is on the...
A car starts from rest, after 10 s the speed of the car is 25 m/s....
A beaker with a metal bottom is filled with 24 g of water at 20∘C. It...
When a solution is heated, do all of the molecules attain the same kinetic energy, or...
A wooden beam with mass of 30 kg is placed over two supports. The beam is...
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