09/30/22

A company gives each worker a cash bonus every Friday, randomly giving a worker an amount with these probabilities: $10 - 0.75, $50 - 0.25. Over many weeks, what is a worker's expected weekly bonus?
A company gives each worker a cash bonus every Friday, randomly giving a worker an amount with these probabilities: $10 - 0.75, $50 - 0.25. Over many weeks, what is a worker's expected weekly bonus?
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09/29/22

AP Physics Question
It takes .21s for a dropped object to pass a window that is 1.35m tall. From what height above the top of the window was the object released?
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09/28/22

What is the unknown mass and weight

using the initial valocity(0.82), final velocity (0.85) , distance (0.8m) and mass of 26.94 grams, find net force
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09/28/22

A mass of 27g of liquid is put into a S.G bottle at 18°C. When heated to a temperature 5g of the liquid was expelled.If the apparent expansivity of the liquid is 0.000997K/^1.Calculate the temperature
Temperature
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09/28/22

titrations part 2
The concentration of a Fe2+ solution is determined by titrating it with a 0.1259 M solution of dichromate. The balanced net ionic equation for the reaction is shown... more
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09/28/22

Calculate the equilibrium concentrations of each gas at 430 ∘C.
A mixture of 0.435 M H2,0.435 M H2, 0.357 M I2,0.357 M I2, and 0.874 M HI0.874 M HI is enclosed in a vessel and heated to 430... more
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09/27/22

What is the velocity of the rock when it is 5.10m5.10m below the starting point (remember that velocity is a vector)?
A person throws a rock straight downwards off a cliff with an initial speed of 13.0m/s13.0m/s. What is the velocity of the rock when it is 5.10m5.10m below the starting point (remember that... more
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09/27/22

write an equation for the shape of f(x)=x^(3) but moved two units to the left, five units up, and reflected in the y-axis
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09/27/22

please help me with calc

A projectile is shot upward from the surface of Earth with an initial velocity of 111 meters per second. Use the position function below for free-falling objects. What is its velocity (in m/s)... more
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09/26/22

Can anyone help me with this question?
1) A vector A has a magnitude of 9 and is directed along an angle [theta= 30 degrees].  w.r.t the x-axis. its x component is............... , and y component is................. . Round up to two... more
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09/25/22

Write a net ionic equation for the reaction that occurs when aqueous solutions of ammonia and hypochlorous acid are combined.
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09/25/22

Change in oxidation

3HNO2 + ClO3-3NO3- + Cl-+ 3H+ In the above redox reaction, use oxidation numbers to identify the element oxidized, the element reduced, the oxidizing agent and the reducing agent. name of the... more
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09/25/22

Help! How would I find the equilibrium points of this system?

I have the discrete-time dynamical system mt+1=0.6mt+3 with m0=0. What would be the equilibrium point(s) of the system? i replaced mt with x to then get x=7.5 as the equilibrium point. would this... more
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09/24/22

Help needed with physics problem
A 2.5-cm-diameter parallel-plate capacitor has a 2.1 mm spacing. The electric field strength inside the capacitor is 1.0×10^5 V/m .How much charge is on each plate?My answers were: 6.0*10^-8... more
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09/24/22

general chemistry II
Using the data in the table, calculate the rate constant of this reaction.A+B⟶C+DA+B⟶C+D Trial[𝐀] (𝐌)[A] (M)[𝐁] (𝐌)[B] (M)Rate... more
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09/24/22

Reaction rate chem 12

For the reaction: 2Zn(g) + O2(g) = 2ZnO(s) If at time 0.0 seconds the weight of the whole system was 36.54g and after 60.0 seconds it was 37.23 g, what is the rate of production of ZnO in g/min?
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09/23/22

Probability and statistics

(a) There are 17 appetizers avallable at a restaurant. From these, Torn is to choose 13 for his party.How many groups of 13 appetizers are possible?(b) A certain committee consists of 18 people.... more
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09/23/22

Consider a ball dropped from a height of 256 feet, modeled by the position equation, s(t) = −16t2 + 256
Determine the average velocity of the ball from when the ball was released to when it hitthe ground.iii) What does the mean value theorem tell us about the relationship between the average rateof... more
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09/23/22

N is a number. double N divided by 4 less than N equals 3. Write an equation to show this
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09/23/22

A car travels 10 km southeast and then 15 km in a direction 60 degrees northeast. Find the magnitude of the cars resultant vector in km.
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09/23/22

What is the volume in liters of 9.529 pounds of gold? The density of gold is 19.3g/cm^3
What is the volume in liters of 9.529 pounds of gold? The density of gold is 19.3g/cm^3
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09/22/22

Find two nontrivial functions

f(x) and g(x) so f(g(x))= (-7-6x)4
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09/22/22

AP Chemistry Grade 12
A metal is found to absorb 1000 calories as it is heated from 40.0°C to 60.0°C. How much heat would the same sample absorb if it were heated from 60.0°C to 80.0°C?
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09/21/22

Precipitation reactions
The mass% of Cl- in seawater sample is determined by titrating 25.00mL of seawater with AgNO3 solution, causing a precipitation reaction. An indicator is used to detect the end point, which occurs... more
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09/21/22

s(t) = 16 + 24t − 16t2
How long does it take (in seconds) for the ball to get back to the platform?v(t)= -32t +24i know you set velocity equal to zero but it’s not accepting my answer of 0.75.
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