Questions by Windmaomao

Questions by Windmaomao

A 40kg steel casting (Cp=0.5kJkg-1K-1) at a temperature of 4500C is quenched in 150kg of oil (Cp=2.5kJkg-1K-1) at 250C. If there are no heat losses, what is the change in entropy of? (i) The casing. (ii)

asked Aug 2, 2022

1 answer

0 votes

130k views

The variables x and y vary directly. Use the values to find the constant of proportionality, k. Then write an equation that relates x and y. Write any fractions in the simplest form. y=20; x=12 k = _____

asked Jun 21, 2022

1 answer

21 votes

39.7k views

Question 6 of 10 What is the volume of the sphere below? 3 7.3 A A. 12 units O B. 27 units C. 81% units 3 D. 367 units

asked Jun 5, 2022

2 answers

1 vote

217k views

Help me with this math problem

asked May 6, 2022

1 answer

5 votes

59.0k views

A que hora es el eclipse de hoy en estados unidos 2021

asked Mar 24, 2022

1 answer

3 votes

115k views

(09.01 MC) Two quadratic functions are shown. Function 2: Function 1: f(x) = 2x2 - 8x + 1 |x g(x) 1 17 Which function has the least minimum value and what are its coordinates? (5 points) Function 1 has

asked Dec 26, 2021

1 answer

4 votes

48.4k views

The waiting times between a subway departure schedule and the arrival of a passenger are uniformly distributed between0 and 7 minutes. Find the probabilty hat a randomly selected passenger has a waiting

asked Dec 1, 2021

1 answer

5 votes

71.7k views

Consider the diagram shown below. А B m С D Which of the following statements best describes the construction in the diagram? O AB || CD. O ABCD 0 C is the midpoint of m. OD is the midpoint of m.

asked Nov 10, 2021

1 answer

5 votes

104k views

20+ points :) write about something that you liked, surprised you, or confused about the story the stolen party (3-5 sentences)

asked Oct 17, 2021

1 answer

1 vote

143k views

A scientist is tracking an object orbiting the Sun that is found between Mars and Jupiter. Which additional feature can be used to determine the object is an asteroid? produces a coma has an irregular

asked Sep 14, 2021

1 answer

4 votes

83.8k views

Why is it important to consider the experimental error in all the empirical results presented?

asked Jul 21, 2021

2 answers

0 votes

28.0k views

What is the slope of the line passing through (1, 2) and (3, 8)? A. slope = 7 B. slope = 1/7 C. slope = 3 D. slope = 1/3

asked Jul 14, 2021

1 answer

2 votes

204k views

Add and subtract, whichever comes first, from left to right. activity Simplifying Expressions Use the order of operations to simplify the following expressions. 6. (3 + 4) - 2 + (6 + 3) 9.3 x 6 + 4 = 7.

asked Feb 12, 2021

1 answer

3 votes

177k views

What can a good web best be classified as

asked Jun 24, 2020

1 answer

1 vote

196k views

Three displacements through a hedge maze. (b) The displacement vectors. (c) The first displacement vector and its components. (d) The net displacement vector and its components.d1=6.00 mθ1=40°d2=8.00 mθ2=30°d3=5.

asked Jun 22, 2020

1 answer

3 votes

43.2k views

In a parallelogram one of the angles is 65 degrees, find the the sizes for all.

asked Jan 7, 2020

1 answer

3 votes

9.9k views

Solve the linear equation with any method. 4x-7y=18 9x+14y=40

asked Nov 4, 2019

1 answer

5 votes

178k views

In a chemical reaction, activation energy increases the () of the reactants. This outcome causes the particles to collide, which results in the () of new products

asked Nov 1, 2019

2 answers

1 vote

3.8k views

Which of the following is a nonmetal? A. Calcium (Ca) B. Potassium (K) C. Iodine (I) D. Aluminum (Al)

asked Aug 24, 2019

2 answers

2 votes

162k views

What is 9+n/4=15? I will make sure you get 39 points

asked Jul 10, 2019

2 answers

3 votes

42.5k views

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