02/27/23

I really need a solution, and explanation to that solution. I found this really hard
Raj encoded a secret phrase using matrix multiplication. Using A = 1, B = 2, C = 3, and so on, he multiplied the clear text code for each letter by the matrix C=  to get a matrix that represents... more
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02/25/23

A 300-lb gorilla climbs a tree to a height of 20 ft. Find the work done if the gorilla reaches that height in the following times. (a) 10 seconds W = ft-lb (b) 5 seconds W = ft-lb
helppp
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02/24/23

AP Physics Vertical Spring Question
A 5-kilogram block is fastened to an ideal vertical spring that has a 400 N/m spring constant. When the 5kg block is at rest on top of the spring, the spring is compressed to its equilibrium... more
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02/20/23

linear approximation
The circumference of a sphere was measured to be 78.000cm with a possible error of 0.500000 cm.(a) Use linear approximation to estimate the maximum error in the calculated surface area. ___(b)... more
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02/19/23

Trigonometry and Integrals
Let n be a positive integer at least 3 in value, and let In=∫1/cos^n(x) dx. Use integration by parts to obtain that In = (n-2/n-1) × In-2 + 1/n-1 + sin(x)cosI-n(x)
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02/16/23

What change to the report’s data would give a correct verification of momentum conservation?
The following report for a collision of two marbles has an error. Marble 1 has a mass of 3 g and an initial speed of 6 m/s right. After the collision it has a final speed of 4 m/s to the right.... more
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02/16/23

Can someone explain???
following is the work for using the unit circle in find the exact value of sim 17π/3a)which step has the first error?b)explain the error1)find the coterminal angle17π/3-2π=5π/32) using the unit... more
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02/15/23

How to use escape keys?
Using escape characters, print out the phrase “Welcome to O’Neil’s Boat Rentals!” Initialize one string variable to the following sentence: “Hello there! How are you? I'm doing fine."Using the... more
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02/14/23

In an analogy between traffic flow and electric current, what would correspond to the charge, Q?
traffic signals the street     cars the rate at which cars pass a given point
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02/12/23

Why do we not have to calculate momentum here?
Two automobiles of equal mass approach an intersection. One vehicle is traveling with velocity 13.0 m/s toward the east and the other is traveling north with a speed of v2i . Neither driver sees... more
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02/07/23

Data structures and algorithms
Is 2^(n+1) = O(2^n)? & Is 2^(2n) = O(2^n)?
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02/07/23

A 11-kg cannonball is fired with a velocity of 19m / s from 28 m above the ground . It hits a target that is 11 m above the ground . With what velocity does it hit, in m / s

A 11-kg cannonball is fired with a velocity of 19m / s from 28 m above the ground . It hits a target that is 11 m above the ground . With what velocity does it hit, in m / s ? (Round your answer to... more
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02/05/23

CD Player question help
While placing a compact disc into a CD player, you notice a small chip on its edge. You attempt to play the CD anyway by placing the CD into the player's deck with the chip at 𝜃0=16.5∘�0=16.5∘ as... more
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02/04/23

Standing transverse wave
The diagram represents a snapshot of a standing transverse wave on a flexible string taken when the displacement is at a maximum. The string is 1.25 m long with tension 4.00 N. The total mass of... more
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02/01/23

Convert the following to Binary using 16 bits. Please note that negative numbers are represented with 2's complement
1) 65535 (unsigned)2) -725 (signed)
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02/01/23

motion in physics
The position of a 0.34 kg object attached to a spring relative to the equilibrium position is given by [x = (0.49 m) cos(1.25πt)] a)Find the maximum displacement of the object relative to... more
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01/30/23

Using 2's compliment form, what is 42-18? Please show all the steps.
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01/30/23

How to find the components, magnitude, and direction of velocity?
A dog running in an open field has velocity components of vx= 2.0 m/s and vy = -1.8 m/s at time t1=12.0s. For the time interval t1 = 12.0 s to t2 = 23.0 s, the average acceleration of the dog has... more
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01/30/23

Rational root theorem

Using the Rational Root Theorem, list all the possible rational roots of the polynomial.m(x)=6x^3+x^2-x+2
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01/30/23

A ball thrown vertically upward reaches a maximum height of 30 m above the surface of the earth. What is the velocity of the ball at its maximum height, in meters per second?
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01/29/23

Calculate the maximum height achieved by a ball thrown straight into the air with initial speed 20.0 ft/sec. Give the answer to 1 decimal place.
Calculate the maximum height achieved by a ball thrown straight into the air with initial speed 20.0 ft/sec. Give the answer to 1 decimal place.
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01/29/23

Intergral area calculus

Find the area of the region enclosed by the graphs of 𝑦=𝑒𝑥, 𝑦=𝑒−𝑥, and 𝑦=7.(Use symbolic notation and fractions where needed.)
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01/29/23

Kinematics exercise got the best of me.
The position of a particle moving along the x axis varies in time according to the expression x = 3t^2 , where x is in meters and t is in seconds. Evaluate its position(a) at t = 3.00 s(b) at 3.00... more
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01/28/23

Projectile motion (Baseball Field)
A baseball is thrown from the outfield to home plate. Let's say the outfielder and catcher are 71.6m horizontally apart, and the ball leaves the outfielders hand at a height of 2.28m. (Assume no... more
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01/25/23

Static and Kinetic Friction
A couch has a mass of 138 kg, and between the couch and the floor there's a coefficient of static friction of 0.516 and a coefficient of kinetic friction of 0.264 If the lurch lasts 5.83... more
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