10/26/23

(1 - cosx)(1 + cosx) = sin²x
LHS: (1 - cosx)(1 + cosx)= 1 - cos²x (find the rule)= sin²x (find the rule)(Algebra, Reciprocal, Quotient, Pythagorean, Odd/Even)
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10/26/23

upon hearing of superman's train pushing adventures, ironman decides he can't be outdone. Ironman finds an abandoned train (m=5400kg) and pushes it with a force of 4000 N, until the speeds up to 5m/s.
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10/26/23

Monument & Energy│Please Help!
A 140 kg fullback is running with the football at 10 m/s. A 70 kg defender runs at him in the opposite direction at 5 m/s. The defender wraps his hands around the fullback. What is the velocity of... more
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10/26/23

Monument & Energy│Please Help!
Two students are standing face to face on a frozen pond. The left student has a mass of 100 kg and the right student has a mass of 50 kg. If they push off each other what will be true? The right... more
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10/26/23

Monument & Energy│Please Help!

A 2 kg ball moves to the right at 4 m/s towards a 4 kg ball that is at rest. After the collision, the 2 kg ball is at rest. What is the velocity of the 4 kg ball after the collision? 2 m/s to the... more
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10/26/23

Structure of S-isopropyl benzothioate
How would you draw the structure of S-isopropyl benzothioate; does the Isopropyl take the place of one of the Oxygen atoms connected to the Sulfur atom?
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10/25/23

Find the critical values f(x) on the given interval. f(x)= x/x^2-x+9, [0,9]
Find the critical values f(x) on the given interval. f(x)= x/x^2-x+9, [0,9]
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10/25/23

Use the given conditions to find the exact values of sin (2u), cos(2u), and tan(2u) using the double-angle formula. sin(u) = - 4/5, 3π/2 < u < 2π

Use the given conditions to find the exact values of sin (2u), cos(2u), and tan(2u) using the double-angle formula. sin(u) = - 4/5, 3π/2 < u < 2π
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10/25/23

Need help with rotational kinematics and energy

A 2.40 kg disc 1.10 m in diameter is rolling to the right without slipping on a horizontal floor at a steady 2.70 rad/s. I found how fast the center of mass was moving which was 1.49 m/sb. What is... more
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10/25/23

find each value if f(X) =2x-1 and g(x) = 2-x^2
G(4)
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10/25/23

20. What is the net work done on the elevator during the entire trip, from the first floor to the fourth floor?
An elevator of mass m is initially at rest on the first floor of a building. It moves upward, and passes the second and third floors with a constant velocity, and finally stops at the fourth floor.... more
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10/24/23

Mechanism of 1,2-epoxycyclopentane to Trans-2-Methylcyclopentanol
Help draw a reasonable mechanism for Reaction of 1,2-epoxycyclopentane to Trans-2-Methylcyclopentanol with 1. CH3MgBr/ 2. H3O+ as reagents.
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10/24/23

Drawing Resonance Products
We are presented with the compound (I think it's called) 2-ethylcyclohex-1-ene. It's a hexagon shape, there's a double bond starting on C1 then there's an ethyl group branching off of C2. The... more
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10/24/23

Find the work done by the force on the particle. Answer in units of J.
A force F~ = Fx ˆı + Fy ˆ acts on a particle that undergoes a displacement of ~s = sx ˆı + sy ˆ where Fx = 1 N, Fy = −2 N, sx = 5 m, and sy = 3 m. Find the work done by the force on the particle.... more
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10/23/23

Showing all working, determine whether the following improper integral exists
Showing all working, determine whether the following improper integral exists and if so, find its valueI = ∫ 2/sqrt(x + 5) dx from -5 to 5
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10/23/23

calculate the integral question using partial fraction

Find ∫(4x − 1) /(x3 − x2 + 2) dx.
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10/21/23

Products of Reactions with 4,4-Dimethylcyclohexanone
Please assist with giving pointers for the following reactions in the attached image: https://ibb.co/LCQPLd0
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10/21/23

Exam practice question
I need help solving this problem I am pretty sure it has to do with the Ideal Gas Law, but I don't understand how to solve cause in the Ideal gas law you don't use density or in my understanding... more
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10/21/23

This problem has two parts to answer. Therefore, the question for each of the parts, and additional info, will be typed in "Description".
A farmer is using a rope and pulley to lift a bucket of water from the bottom of a well. The farmer uses a force F1 = 45.5 N to pull the bucket of water upwards at a constant speed. The bucket,... more
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10/20/23

This question has two parts to it. I will type the questions for both parts, along with additional info in "Description".
A car with a mass m = 1190 kg is moving at a speed s = 22.2 km/h and needs to stop in a distance d = 41.3 m.Part a) Write an expression for the magnitude of the net force on the car as it is... more
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10/20/23

From these data, calculate the value of ΔH° for the reaction.
The equilibrium constant for the reaction below decreases from 11160.0 at 520.0°C to 17.0 at 820.0°C.4NO + 3O2 ---> 2N2O5
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10/20/23

Calculate the standard free energy change (R = 8.314 J/K·mol).
Debate continues on the practicality of H2 gas as a fuel. The equilibrium constant for the reaction below is 1.0 × 105 at 25°C.CO2+H2O --> CO2+H2A. Calculate the standard free energy change (R... more
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10/20/23

Solve This Physics Problem
Three diagrams (one with variable F, the other two with variables F and the angle 𝜃) show a block of mass m being pulled or pushed at constant acceleration along a table with a force F. The... more
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10/20/23

Use partial fractions to evaluate the integral
Use partial fractions to evaluate the integral∫ (4x^3 + 2x^2 + 3x + 2) / (x^2(x^2 + 1)) dx
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10/19/23

Does the function satisfy the hypotheses of the Mean Value Theorem on the given interval?
A) Does the function satisfy the hypotheses of the Mean Value Theorem on the given interval? f(x)=e^-3x , [0,2] Choose the correct answer: Yes, it does not matter if f is continuous or... more
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