06/03/20

A coin has a radius of 10 mm. How long will it take the coin to roll through the given angle measure at the given angular velocity? How far will it travel in that time? 360°; 5 rev/se
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06/02/20

Complete and balance the molecular equation for the reaction of aqueous sodium sulfate, Na2SO4, and aqueous barium nitrate, Ba(NO3)2. Include physical states.
Find the molecular equation and the balanced net ionic equation for this reaction. Include physical states.
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06/02/20

Complete and balance the molecular equation for the reaction of aqueous iron(III) nitrate, Fe(NO3)3 , and aqueous lithium hydroxide, LiOH. Include physical states.
Find Molecular Equation and the balanced net ionic equation for the reaction. Include physical statesFe(NO₃)₃(aq) + 3 LiOH(aq) → Fe(OH)₃(aq) + 3 LiNO₃(aq) was incorrect
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06/01/20

Calculus 2 tutor
Are any of you able to answer calculus 2 questions and help me understand the process to learning more? Most other apps can not solve questions with words and show work.
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05/31/20

PROJECTILE MOTION
During Raptors vs Warriors game, with the latter in possession the score is deadlock at 70 – all. With 1.5 seconds remaining on the game clock, Stephen Curry (1.780 m high) decides to shoot. If he... more
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05/31/20

Peter decides to jump a gorge using a skateboard. The gorge is 60 m wide and Peter uses a 1.5 m high ramp inclined at 25 degrees. What speed does he need in order to get to other side?

Peter decides to jump a gorge using a skateboard. The gorge is 60 m wide and Peter uses a 1.5 m high ramp inclined at 25 degrees. What speed does he need in order to get to other side?
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05/25/20

gas with a pressure

A gas with a pressure of .89atm in a 1.5L containter is compressed to 0.5L. Assuming that temperature remains the same what will happen to the pressure?
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05/23/20

Car Dealer question
A used car dealer sells SUVs and cars. Of all the vehicles, 70% are cars. Of all the vehicles, 10% are black SUVs. What is the probability that an SUV chosen at random is black? Round your answer... more
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05/23/20

How can the method of using logarithms to solve equations of the form 10^(mx+n)=c be related to solving scientific problems using logarithms in the form a(10^mx)=c?
How can the method of using logarithms to solve equations of the form 10^(mx+n)=c be related to solving scientific problems using logarithms in the form a(10^mx)=c?
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05/23/20

How can logarithms be used to solve equations in the form 10^(mx+n)=c?
How can logarithms be used to solve equations in the form 10^(mx+n)=c?
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05/21/20

Over a period of 20 years, the population P (in thousands) of a town can be modeled
Over a period of 20 years, the population P (in thousands) of a town can be modeled by P = 0.0081t^3 − 0.245t^2 + 2.13t + 95.8 where t is the time (in years).a. Use a graphing calculator to graph... more
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05/21/20

Help please with math problem

A of a radioactive substance has an initial mass of 981.5mg This substance follows a continuous exponential decay model and has a half-life of 16 hours. Let (t) be the time in hours) since the... more
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05/19/20

Can anyone please solve this problem?
Josh observes a traffic sign across a road some distance from where he stands. He wants to know the height of the sign. His angle of elevation to the top of the sign is 11°. Anna is standing 15 m... more
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05/19/20

Please Help with questions on Newtons Third Law
Draw a Free Body Diagram (FBD) for each object for each of the following below. Label informatively.1. Two boxes, A and B, are touching each other and are at rest on a horizontal, frictionless... more
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05/17/20

Compute the work required to stretch a spring from equilibrium to 7 cm past equilibrium, assuming that the spring constant is k=160kg/s^2 W =______ J
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04/15/20

A driver, accelerating too quickly on a horizontal bridge, skids, crashes through the bridge railing, and lands in the river 20.0 m below the level of the bridge roadway. (Continued in Description)
The police find that the car is not vertically below the break in the railing, but is 53.6 m beyond it horizontally. Determine the speed of the car before the crash.
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03/23/20

Argon gas in a storage tank has a volume of 225 L at 643kPA and 24.6 C. How many moles of argon gas are in the tank?
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03/16/20

Physics Newtons laws
A 873-kg dragster, starting from rest, attains a speed of 26.3 m/s in 0.59 s. a. Find the average acceleration of the dragster. b. What is the magnitude of the average net force on the dragster... more
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03/15/20

Geometry Homework

AB is tangent to circle C and measures 19. BC = 6 Find AC to two decimal places. A. 19.00B. 18.03C. 25.00D. 19.92
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03/14/20

How to find the maximum profit for -x^2 + 1030x -30,000
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03/14/20

Two people climbed to the roof of a building. The old person walked up a gentle ramp. The young person climbed up a steep spiral staircase. Which person did more work? Explain.
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03/13/20

Is my answer correct?
Solve the system: {3x – y = 6} {xy = 24} There are two solutions: (x1, y1) (x2, y2). Evaluate: x1+y1+x2+y2=(A) 8(B) 0(C) 8 + 6√3 i (D) -4(E) None of these For this I got; (D) -4. Is my answer... more
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03/11/20

Curves in the road are banked with the outside of the curve higher than the inside of the curve. Banking allows a care to make the curve at a higher speed. Why?
a. The bank reduces the amount of centripetal force needed to make the turnb. The friction coefficient increases when the road is bankedc. The bank allows a component of the normal force to... more
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03/09/20

A gas phase reaction is carried out between 7 dm3 of carbon monoxide and 3 dm3 of oxygen. What is the maximum volume of carbon dioxide formed, assuming that the reaction goes to completion?

2CO (g) + O2 (g) → 2CO2 (g)All measured at the same conditions of temperature and pressure.
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03/08/20

Precalc question
John has been hired to design an exciting carnival ride. Tiff, the carnival owner, has decided to create the world’s greatest ferris wheel. Tiff isn’t into math; she simply has a vision and has... more
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