06/30/22

Tricky physics problem about impulses
A projectile shot upwards, at the highest point explodes into three fragments. The first two fragments flied away with an angle of 90 degrees. The mass of the first fragment is m1 = 9 kg, velocity... more
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06/30/22

Find the minimum amout of work
A brick (right rectangular prism) with density p and dimensions a×a×2a is resting on its side (horizontally), what minimum amount of work needs to be done to lift it up and place vertically.How to... more
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06/30/22

The electric field intensity 2m from the surface of a charged sphere is 30.86 x103 N/C. The charge density at the surface of the sphere is 8.85 x 19‒7 coul/m2. What is the radius of the sphere ?
The electric field intensity 2m from the surface of a charged sphere is 30.86 x103 N/C. The charge densityat the surface of the sphere is 8.85 x 19‒7 coul/m2. What is the radius of the sphere ?•... more
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06/26/22

Discrete structures

Consider the following relation R on the set A = {1, 2, 3, 4}: R = {(1, 2), (2, 3), (3, 1), (4, 1)} Find the transitive closure of this relation.
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06/23/22

Physics Question About Work Being Done

What work do you think is done when you carry a 20 N weight backpack for a 1000 m walk? will the work be positive, negative, or potentially zero?
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06/15/22

Equation for tension in a string
Two blocks are connected by a string and pulley (such that block one (m sub 1) is on an incline, block two (m sub 2) is hanging from the string), and the incline of the ramp is the angle theta.... more
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06/14/22

Please help me with physics hw i dont understand

1) which of the following gives good evidence for the particle nature of EM radiation?A) photoelectric effectB) electron probability regionsC) interference patternsD) diffraction2) which of the... more
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06/12/22

Help My Physics Question
What are the reactive force and moment at shoulder?BW = 78KgUpper arm = 0.028BWdistance from shoulder to elbow = 33cmcenter of mass = 15 cm from the shoulderSoutheast is elbow.
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06/12/22

Given f(x) = 1/x and g(x) = 2x + 6, now calculate the following:

f(x) = 1/x and g(x) = 2x + 6, calculate the following:a) f ◦ g (x) = ? , its domain is all real numbers except: ?b) g ◦ f (x) = ? , its domain is all real numbers except: ?c) f ◦ f (x) = ? , its... more
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06/11/22

Question regarding neural networks and least squares using NumPy. How do I start?
You are asked to implement a data-fitting classifier that can predict the label of an input vector. Specifically, in the context of hand-written digit classification, the label is an integer number... more
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06/09/22

There are 10 people lining up for a movie including three friends Anne, Bradley and Carol.

a. Determine the number of ways the line could be formed if the three friends will always stand together. b. Determine the number of ways the line could be formed if the three friends stand... more
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06/08/22

Merry-go-round question
Assume the camera is placed 6 feet from the center of the merry-go-round and the diameter of the merry-go-round is 6 feet. Build a trigonometric function that models the distance (feet) of the... more
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06/08/22

I need help with the following question
Hi, I need help with the following questionProve the program is correct using Hoare logic inference rules where a and b are any two arbitrary numbers.and it is using repeated addition{b>=0} w :=... more
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06/07/22

Hoare logic rules

using repeated addition, where a and b are any two arbitrary numbers. Prove the program is correct using Hoare logic inference rules (precondition and postcondition have been given).{b>=0}x:=... more
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06/04/22

Wants to know logic how to convert it into code (C lan)
Mr. Sam was born on XX-YY-ZZZZ which happened to be a Saturday. If he died on AA-BB-CCCC, how many birthdays would he celebrate that fall on a Monday?Assume, the year which is divisible by 4 are... more
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06/03/22

Hoare Logic inference
which corresponds to the series 0+1+2+3+ … +n with 0 being the 0th triangular number, 1 being the 1st, 3 being the 2nd, 6 being the 4th and so on. Prove the program is correct using Hoare logic... more
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06/01/22

Password combinations
Can be 5 or 6-character long passwords. The characters must be from lowercase letters or digits. Each password must contain at most two lowercase-letters and contains no repeated digits. How many... more
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05/28/22

1) Hello, please can you assist me with this urgently
Find the area of the surface of the cap, cut from the hemisphere x 2 + y2 + z2 = 5, z ≥ 0, by the cylinder x2 + y2 = 1.
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05/23/22

Rewrite the statement ¬∃x (∀y∃tS(x, y, t) ∧ ∃tR(x, t)) so that negations appear only within predicates.
Rewrite the statement ¬∃x (∀y∃tS(x, y, t) ∧ ∃tR(x, t)) so that negations appear only within predicates.
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05/21/22

Asteroid split lab

Background: The two tables below contain both the assumptions and parameters needed to evaluate if the plucky heroes in Armageddon could save Earth. In order to miss, Earth two conditions must... more
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05/19/22

mass of the lamina
F‎‎‎‎‎‎‎‎ind the mass of the lamina in the shape of the portion of the plane with equation 4x + 8y + z = 8 in the ‎‎‎‎‎first octant if the area density at any point (x, y, z) on the plane is δ(x,... more
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05/15/22

Starting from rest, several toy cars roll down ramps of differing lengths and angles.
Starting from rest, several toy cars roll down ramps of differing lengths and angles. Rank them according to their speed at the bottom of the ramp, from slowest to fastest. Car A goes down a 10 m ... more
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05/15/22

Fundamental Theorem for Line Integrals
Find the work done in moving a particle along a curve from point A(1, 0, −1) to B(2, 2, −3) via the conservative force field ~F (x, y, z) = 〈2y3 − 6xz, 6xy2 − 4y, 4 − 3x2〉.(a) using the Fundamental... more
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05/11/22

rotational motion
  A uniform disc of mass m = 2 kg and radius R = 0.75 m is suspended horizontally by a wire. Refer to the figure. A force of F = 65 N is applied to the edge of the disc tangentially. As a result,... more
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05/04/22

The population density
The population density of a city r miles from the city center is P(r) people per square mile. Which expression represents the total number of people living within a circular region extending 5... more
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