05/05/23

Chemistry 11 grade
How much heat, in joules is required to raise the temperature of 1.82 kg water by 3.32 C ?What is specific heat of iron, if it required 1050 J of heat energy rise the temperature of 220.0 g of iron... more
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05/05/23

Please help me with this question
A speedboat increases its speed uniformly from vi = 20.0 m/s to vf = 33.0 m/s in a distance of Δx = 2.00 ✕ 102 m. (b) For the given information, what single equation is most appropriate for... more
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05/05/23

Please help me solve this question
A record of travel along a straight path is as follows:1. Start from rest with constant acceleration of 2.00 m/s2 for 19.0 s.2. Maintain a constant velocity for the next 2.30 min.3. Apply a... more
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05/03/23

Will somebody please help me with these Pre Calculus questions?
The expression tanX+1/1-tanX can be rewritten as which of the following?A. tan (x - (5π/4))B. tan (x + (3π/4))C. tan (x + (7π/4))D. tan (x - (7π/4))What is the exact value of sin(195°)?A. (√2 +... more
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05/03/23

FInd displacement of airplane - vectors question

An airplane leaves the airport travelling N 55 degrees W at 580km/hour. After 1.5 hours the airplane then turns north and travels 2 hours at 610km/hour. What is the displacement(magnitude and... more
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05/03/23

Find the velocities

Two particles have a position at time t given by the equations S1 = -t^3 -t and S2 = 6t^2 - t^3.Find their velocities when they have the same acceleration.My answer is V1 = 2 and V2 = 9. I'm not... more
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05/02/23

Conservation Question (Look at description for more details; PHYSICS Related)
How much heat (in Joules) is required to melt 0.31 kg of ice at 0oC and to raise the temperature of the melted ice to 15oC? The specific heat of water is 4186 J/(kg K) and the Latent heat of fusion... more
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05/02/23

linearization formula
Let f(x)=3sqrtx​ (a) Find a formula for the linearization L(x) of f(x) at x=8. (b) Use your answer from (a) to estimate 3sqrt10​.full answer and work pls
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05/01/23

If a 0.155 kg baseball has a momentum of p = 4.96 kg·m/s as it is thrown from home to second base, what is its velocity?
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05/01/23

Would my answer be correct?
The figure below shows rectangle ABCD with diagonals  and :Anastasia wrote the following proof to show that the diagonals of rectangle ABCD are congruent:Anastasia's proof:Statement 1: Rectangle... more
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05/01/23

Would My Answer be correct?
Beth is planning a playground and has decided to place the swings in such a way that they are the same distance from the jungle gym and the monkey bars. If Beth places the swings at point D, how... more
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04/29/23

Determine a Log equation in the form Y= A+BlogX for the curve of best fit for the following data.
Modelling Apple Tree Growth Year Height of Tree ft) 1 7 2 17 3 20 4 24 5 27 6 29 7 32 8 33 9 34 Determine a logarithmic function (in the form y=a+blogx) for the curve of best... more
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04/29/23

Integrate 2x-2/(x^2-2x-15)(X+2)

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04/28/23

Determine a process for finding g′ if g(x)= f(2x)/ f(x).
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04/28/23

precalc question
At the beginning of a laboratory experiment, a technician observes 16 CFUs (colony-forming units) of a certain bacterium in a culture. After 4.2 hours, there are 44280 CFUs in the culture. Assuming... more
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04/28/23

A Little Help With This?
A jar contains an equal number of pennies, nickels, and dimes. If he total value of the coins is 368 cents, how many pennies does the jar contained?
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04/28/23

trig homework help
A communication tower (the side CB) is located at the top (the point C) of a steep hill. The angle of inclination of the hill is 58 degrees. A guy wire is to be attached to the top (the point B) of... more
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04/27/23

Maclaurin series of f(x) and explanation?
Write out the first four terms of the Maclaurin series of f(x) if:f(0)=−11, f′(0)=8, f′′(0)=−4, f′′′(0)=−13I get -11 + 8x + (-4x^2 / 2!) + (-13x^3 / 3!) but this is wrong apparently, why?
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04/27/23

Firm cost function - microeconomics
A firm's cost function is C(q) = q^2 + 3q + 25 and it sells units at a price of $55 per unit. q denotes the number of units. What is the profit-maximising number of units? type your answer to the... more
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04/26/23

physics grade 9
a pool ball leaves a 0.70-meter high table with an initial horizontal velocity of 2.6m/s. predict the (a) time required for the distance between the table's edge and the ball's landing location
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04/26/23

Rates of Decay Reactions
Thallium-201 is used medically to diagnose heart problems. The half-life of thallium-201 is 72.9 hours. If you begin with 39.8 mg of this isotope, what mass remains after 200 hours have passed?
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04/24/23

Find exponential equation matching data

The table below shows the number of people in an arena t minutes after an event has ended. T= minutes after event ended: 4 8 12 16 20 24 F(t)= number... more
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04/24/23

Determine how much will remain algebra help needed

The half-life of Polonium-209 is 102 years.If we start with a sample of 108 mg of Polonium-209, determine how much will remain after 153 years.If necessary, round answer to three decimal places.... more
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04/24/23

How do I determine if graph is supposed to be discrete or continuous?
I am working on exponential functions in algebra right now and my teacher has given me word problems and then has asked me to find the best graphical problem I can create based on the context. My... more
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04/20/23

I need help with Algebra!
What does y less than 12 look like.?
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