01/15/22

PHYSICS DOUBT - When we are in an elevator, then..
It is said that when we move up in an elevator, then our weight increases, but acc. to this - F=GMm/r^2, Our distance or r would be increasing, and F is inversely proportional to r, so shouldn't it... more
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01/15/22

chemistry question that i do not understand

A)At TPN what volume of sulfur dioxide must be reacted with 3.5 l of dihydrogen sulphide to remove all the dihydrogen sulphide? B) what mass of soufre do we obtain ?
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01/15/22

how much time does it take for a spinning baseball with an angular speed of 38 rad/s to rotate through 15 degrees?
how much time does it take for a spinning baseball with an angular speed of 38 rad/s to rotate through 15 degrees?
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01/14/22

A 2000 kg car traveling down a hill from a height of h=1.5 m collides with a 3000 kg car at the bottom of the hill initially at rest.

A 2000 kg car traveling down a hill from a height of h=1.5 m collides with a 3000 kg car at the bottom of the hill initially at rest. The cars stick together and move 400m before friction causes... more
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01/14/22

Limiting Reactants

Liquid hexane CH3CH24CH3 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. Suppose 6.9 g of hexane is mixed with 31.9 g of oxygen. Calculate the maximum... more
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01/14/22

Ho‎w do you s‎et‎ up a tripl‎e integral in s‎pherical coord‎inates eq‎ual for volu‎me
Let G be the p‎ortion of th‎e so‎lid enclo‎sed by the hemi‎sphere z = √(4 − x 2 − y 2), abo‎ve the plane z = 1, and o‎utside the cone z = √ (3x 2 + 3y 2).Ho‎w do you s‎et‎ up a tripl‎e integral in... more
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01/14/22

infinitely many solutions
infinitely many solutions in a system of equations with 5x-2y=8 in y = mx + b form please
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01/13/22

A ceiling fan rotates at the rate of 45 degrees every 0.75 s. What is the angular speed of the fan in radians per second?

A ceiling fan rotates at the rate of 45 degrees every 0.75 s. What is the angular speed of the fan in radians per second?
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01/13/22

How do you find a resultant using the graph method?
F1= 8 kN, α=48° ja F2= 15 kN, α=118°
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01/13/22

HELP WITH PHYSICS QUESTION PLEASE TY
The mass of the Earth is 5.98 × 1024 kg .A 4.72 kg bowling ball initially at rest isdropped from a height of 4.62 m.The acceleration of gravity is 9.8 m/s2 . What is the speed of the Earth coming... more
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01/13/22

Whenever work is done, energy is released or consumed?
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01/13/22

The letters that form the word MISSISSIPPI are placed in a bowl. What are the odds of choosing a “P”?
The letters that form the word MISSISSIPPI are placed in a bowl. What are the odds of choosing a “P”?
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01/13/22

(i) Write the MATLAB code to find the equation of tangent to the curve yz = 4 -3x at (-2,5). Also visualize them pictorially.

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01/13/22

Physics Unit 6- Work
If a dog team uses 35 N of force to pull on a 700 kg sled that is frozen to the ground, and does not get it to move the required 35 m. Did the team do any work?Group of answer choicesMaybeNoNot... more
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01/13/22

HELP WITH PHYSICS QUESTION PLEASE THANK YOU!
An attack helicopter is equipped with a 20- mm cannon that fires 105 g shells in the forward direction with a muzzle speed of 731 m/s. The fully loaded helicopter has a mass of 2360 kg. A burst of... more
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01/12/22

How to solve this by using Plurality Method, Plurality by Elimination, and Borda Count Method?
A local movie theater asks its patrons which movies they would like to view during next month's “Oldies but Goodies” week. The choices are Gone with the Wind (G), Casablanca (C), Anatomy of... more
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01/12/22

pre- calculus exponents and logarithms
Robert takes a roast out of the oven when the internal temperature of the roast is 165°F. After 15 minutes, the temperature of the roast drops to 135°F.The temperature of the room is 70°F.How long... more
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01/12/22

The integral π∫(1−y^2)^2 dy (low lim=-1 upp lim=1) gives the volume of a particular solid. Sketch the solid and find the area of that region in the xy-plane. Also find the volume of the solid.
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01/12/22

Find the second and third components of a vector n
Find the second and third components of a vector n normal to the plane with the equation 12x+13y-14z=5 if the first component of the vector n is equal to 12.The second component of n = ?The third... more
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01/12/22

The correct name for the compound shown below is:
N,N-diethyl-2-phenyl-3-methylbutanamide N-ethyl-N-methyl-2-phenyl-3-methylpropanamide N,N-dimethyl-2-phenyl-3-methylbutanamide N-ethyl-N-methyl-2-phenyl-3-methylbutanamide N-ethyl-N-methyl-3-pheny... more
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01/12/22

(Highschool physics question) Elastic potential energy and Hooke’s law
A vertically-hanging spring which has a k-constant of 15.0 N/m has a 1.50 x 102 g mass attached to it. How far will the spring stretch? Answer: (0.098m) please show process
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01/11/22

I need to solve the problem below but i don't knw how.
A football team scored 30 points in one of its games. It scored a combination of touchdowns (worth 7 points), field goals (worth 3 points), and safeties (worth 2 points). The team scored 3 times as... more
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01/11/22

EASY MATH QUESTION (GRAPHING)
Write an equation that passes through the points (3, 6) and (1,-1)
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01/11/22

Force of two charges
A metal is tested to have a charge of 697.6C. How many electrons are added to it to acquire the charge? If two similarly charged metals are brought 1.5m apart in a medium of dielectric constant 2,... more
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01/11/22

A chemist has one solution containing 20% acid, and a second containing 30% acid. How many liters of each solution must be combined to obtain 80 liters of a mixture that is 28% acid?

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