12/18/20

Hydrogen and nitrogen react to form ammonia according to the reaction, 3 H2 + N2 —> 2 NH3. If 4.0 moles of H2 with 2.0 moles of N2 are reacted, which would be the limiting reactant?
Hydrogen and nitrogen react to form ammonia according to the reaction, 3 H2 + N2 —> 2 NH3. If 4.0 moles of H2 with 2.0 moles of N2 are reacted, which would be the limiting reactant?
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12/18/20

kinetic friction

38. The coefficient of kinetic friction between an object and the surface upon which it is sliding is 0.25. The weight of the object is 20N. What is the force of friction? 39. The force of... more
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12/18/20

help 5 simple questions
Determine the Force of Gravity (Weight) of an object that has a mass of 6 kg A Brick that weighs 14N sits on a desk. What is the Normal Force supplied by the desk?  True or False: Normal Force is... more
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12/18/20

HELPPPP PLZ URGENT
Use any of the following equations to solve the problems. Show all workFN = mg W = mg gEARTH = 9.8 m/s2 1. What is the Normal Force supplied by a desk to a 2 kg book?2. What is the mass of a... more
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12/18/20

The anion in NaC2H3O2
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12/17/20

What’s the claim of the experiment?
As mass increases, acceleration decreases. When I ran a cart down a track, I measured the acceleration to be 15m/s2. I added 5 grams to the cart, and the acceleration decreased to 10m/s2. Then, I... more
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12/17/20

if f(x)=3x^2 and g(x)=x+3 ,find (f-g)(x)
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12/16/20

A store in the mall charges $45 to fix any damages to your phone. For their labor, they charge $2 per minute. What is the equation that represents this situation?
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12/16/20

My physics class
you hit a gold ball 21 m/s at 25 degrees. How far will it go? what will its maximum height be?maximum height?distance?
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12/16/20

What is 27 less than four times a number is equal to the number? What is the number?
simple algebra =, but I really am struggling with it.
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12/16/20

algebra 1 math question

which equation describes the line with a slope of 2 and a y-intercept of 6?
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12/16/20

A hammer delivers a 1250N force to a block of wood. The force that the board exerts on the hammer would be
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12/16/20

How many moles of C2H6 are needed to completely react with 4.30 moles of O2 according to the above equation? You must show all your work to receive credit.
The equation is 2C2H6+7O2->4CO2+6H2O
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12/15/20

Writing a direct variation equation
Suppose that y varies directly with x , and y = 10 when x = -5. A) Write a direct variation equation that relates x and y.B) Find y when x = 4. y =
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12/15/20

If a battery of 9 volts is connected across a resistor of 1000 ohm, what will be the value of current flowing through it?
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12/15/20

Find the two forces F1, and F2.
A diver of weight 1500 newtons stand at the end of a 4.0 meter diving board as shown assume that the weight of the diving board is negligible. The board is attached to two pedestal that are 1.5... more
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12/14/20

The line y=9x+b is tangent to the graph of f(x) =ax^3 at x=1. Find the values of a and b.

The answer is a=3, and b=-6 according to the answer key. I am confused and could not find this in the book. Please help.
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12/14/20

Consider an apple at the top of a tree that is pulled by Earth’s gravity with a force of 1 N. If the tree were twice as tall, would the force of gravity be only ¼ as strong? Defend your answer.
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12/14/20

physics, rotational motion, gravitation, question is in description
Consider an apple at the top of a tree that is pulled by Earth’s gravity with a force of 1 N. If the tree were twice as tall, would the force of gravity be only ¼ as strong? Defend your answer.
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12/14/20

physics, rotational motion, gravitation, question is in description
If there is an attractive force between all objects, why do we not feel ourselves gravitating toward massive buildings in our vicinity?
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12/14/20

David whirls a rock that is held in his sling at 3.4 rotations per second. The radius of the rocks circular motion is 1.6m. What will be the velocity of the rock when it strikes Goliath?
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12/14/20

Physics Question
Determine the final velocity of a proton that has an initial velocity of 2.2 ✕ 105 m/s, and then is accelerated uniformly in an electric field at the rate of -1.10 ✕ 1012 m/s2 for 1.30 ✕ 10-7 s.
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12/14/20

Analyse the technical problems and design factors in the manufacture of oxygen and nitrogen
Please give a detailed analysis in about 400 words.
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12/14/20

A 53 kg rocket-powered sled is sliding at constant velocity over a rough surface. If the sled is experiencing 722 N of frictional force, how much force must the rockets be providing?
A 53 kg rocket-powered sled is sliding at constant velocity over a rough surface. If the sled is experiencing 722 N of frictional force, how much force must the rockets be providing?
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12/14/20

A 241 kg sled is sliding on ice with a coefficient of friction of 0.3. What is the magnitude of the frictional force between the sled and the ice? Use g=10m/s2

A 241 kg sled is sliding on ice with a coefficient of friction of 0.3. What is the magnitude of the frictional force between the sled and the ice? Use g=10m/s2Round to the nearest whole number. Do... more
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