Stefan

Which is the MOST important literary element in biographies? A.Plots B.Characters C.Settings D.Point of view I believe is characters...but I just want to make sure with some one.

16 years ago

In one cycle a heat engine absorbs 530 J from a high-temperature reservoir and expels 310 J to a low-temperature reservoir. If the efficiency of this engine is 55% of the efficiency of a Carnot engine, what is the ratio of the low temperature to the high...

14 years ago

An eight turn coil encloses an elliptical area having a major axis of 40.0 cm and a minor axis of 30.0 cm. The coil lies in the plane of the screen and has a 6.10 A current flowing clockwise around it. If the coil is in a uniform magnetic field of 2.07 10...

14 years ago

Microwaves of wavelength 4.50 cm enter a long, narrow window in a building that is otherwise essentially opaque to the incoming waves. If the window is 36.5 cm wide, what is the distance from the central maximum to the first-order minimum along a wall 6.7...

14 years ago

a sample of an unknown metal has a mass of 21.6g and a volume of 8.00cm^3 . calculate the density of the unknown metal

12 years ago

So I have the balanced equation: c3H8 +502 = 3C02 +4H20 Question: At STP propane (C3H8) burns in oxygen to form 2.15L of carbon dioxide and water. So I've got 2.15 L x 1 mole /22.4 L But when I try to do the mole ratio, I don't know what to do since the 2...

11 years ago

Question: At STP propane (C3H8) burns in oxygen to form 2.15L of carbon dioxide and water. The question is in 4 parts. I just need the first: a)What mass of oxygen is necessary for this reaction? So far I've got 2.15 L x 1 mole /22.4 L But when I try to d...

11 years ago

QR is parallel to ST and PQ:QR = 2:1. Given the area of triangle PST is 18cm2, the area of triangle PQR in sq cm is?

11 years ago

I've been looking for the answers to questions on my study guide for a test I will have for a couple hours and I got a lot of them. However, there are some that I still have a hard time finding. Here are the questions. If I can be told even some of these,...

9 years ago

What are the main factors that have affected the economic development in the Middle East? Explain the economic stagnation in the region.

8 years ago

why is Israel the only country in the region that qualifies as a developed nation?

8 years ago

Log5 (2x+1)=1

3 years ago

Angelo is driving at 15.0 m/s when he saw a stalled car 75 m ahead. At what rate must he slow down his car so that it will stop 0.5 m before hitting the stalled car? His reaction time is 1.2 s.

3 years ago

A ball thrown vertically upwards returns to the hand in 4.8s. (a.) How high did the ball go? (b.) What was the ball's initial speed? (c.) At what time(s) is the ball's speed equal to 19.6 m/s?

3 years ago

A ball is thrown vertically upward with a speed of 12.0 m/s inside a bus moving at 9.0 m/s. What is the velocity of the ball as observed by a man standing on the street?

3 years ago

A uniformly accelerated body takes 10 s to cover 500 m. Assuming that the body starts from rest, find (a) its acceleration and (b) the time it will take to cover the next 500 m.

3 years ago

9.) If a-1, a+3, and a-12 are consecutive terms in a geometric sequence, find: a) the value of a ---------------------- b) the value of r (You get +10 points if your solution and answer is honest)

2 years ago

10.) The sum of the 2nd and 3rd terms of a geometric series is 15. The sum of the 3rd and 4th terms is 60. Determine: 1) The ratio of the series ---------------------- b) The 8th term (You get +10 points if your solution and answer is honest)

2 years ago

Write the equation of the parabola in standard and general form whose vertex is at the origin and directrix of equation y = 3. Find the coordinate of the focus, length of the latus rectum (focal width), the x- and y-intercepts.

2 years ago

Identify the vertex, focus, equation of axis of symmetry, equation of directrix, direction of opening, vertex, and length of the latus rectum (focal width) of 2y² + x + 20y + 51 = 0 .

2 years ago

If a player kicks a stationary football with a horizontal force of 25 N (Newtons), what will be the football's acceleration? How far will the football move in 2.0 seconds? The mass of the football is 0.40 kg.

2 years ago

Three forces: F1 = 4.5 N (Newtons) directed East F2 = 18.0 N (Newtons) directed North F3 = 18.0 N (Newtons) directed West are acting on a 2.0 kg object. Find the object's acceleration.

2 years ago

An object of weight 30 N (Newtons) rests on a table. a) What are the forces acting on the object? b) What are the reactions to these forces?

2 years ago

Imagine that you are holding a book of 5 N (Newtons) at rest on the palm of your hand. Complete the ff statements: a) A downward force of 5 N (Newtons) is exerted on the book by the ______. b) The reaction to the force in (a) is exerted on the ______ by t...

2 years ago

Write the equation of the hyperbola with vertex (±3, 0) and focus (-5, 0).

2 years ago

Find the center, vertices, foci, lengths of transverse and conjugate axis and the asymptotes of the hyperbola with equation: 9x² - 16y² - 36x - 96y - 252 = 0

2 years ago

A metal ball weighing 490 N hangs from a uniform heavy-duty chain weighing 245 N. (a) Find the force exerted by the chain on the ball. (b) Find the tension in the upper end of the chain. (c) Find the tension halfway from the upper end of the chain.

2 years ago

A 1.50 kg object is supported by two inextensible cords that are 6.0 cm and 8.0 cm long. These cords are attached to two nails A and B that are 6.0 cm apart. Find the tension in each cord.

2 years ago

A horizontal force of 28.5 N will just start the motion of a 65 N block. A force of 23 N is needed to keep it moving at a constant velocity. Find the coefficients of static friction and kinetic friction.

2 years ago

Suppose that a force F=250 N applied at 20° below the horizontal is just enough to start the motion of the 55 kg crate in Sample Problems 3.5 item 3. Find the (a) normal force and (b) coefficient of static friction. ========================== Here's Sampl...

2 years ago

A force F=3.0 N+(0.5 N/m)x is used to push a crate from x=0 to x=5.0 m. How much work is done by the force?

2 years ago

An archer pulls a bowstring back by a distance of 0.56 m. The bowstring has a force constant of 340 N/m. (a) What force is exerted by the archer? (b) What is the elastic potential energy of the bowstring?

2 years ago

A man uses a 2.25-m long wooden board inclined at 35° with the horizontal to raise a 150 kg package. He then pushes forward with a force of 125 N to move the package 4.6 m across a level surface. Find the work done by the man. NOTE: SHOW YOUR SOLUTION

2 years ago

In Sample Problems 4.2 item 2, find the speed of the object at, A) x = 2.0 m B) x = 3.0 m C) x = 4.0 m Assume that the mass of the object is 2.5 kg and that the object starts from rest. Given: m = 2.5 kg v↓0 = 0 W = 25 J

2 years ago

An object with a mass of 5.13 kg is placed on top of a spring and compresses the spring by 0.25 m. (a) What is the force constant of the spring? (b) How high will this object go when the spring releases its energy?

2 years ago

A 76 kg man starts from rest at the top of a 12.0-m long water slide that is inclined 65° with the horizontal. In sliding down, he encountered a frictional force of 45.0 N. (a) What is the speed of the man at the bottom of the slide? (b) What is his kinet...

2 years ago

A 76 kg man starts from rest at the top of a 12.0-m long water slide that is inclined 65° with the horizontal. In sliding down, he encountered a frictional force of 45.0 N. Suppose the man landed horizontally into the water, how far will he travel before...

2 years ago

true or false The reference point for zero gravitational potential energy is the ground

2 years ago

True or False? When a person is going up, the force of gravity does (positive) work on him.

2 years ago

True or False The amount of work done on a body equals the change in (kinetic energy) of the body.

2 years ago

If the force and displacement are perpendicular to each other, the work done is equal to _________.

2 years ago

When force and displacement are not parallel to each other, only the component of force ________ to displacement does the work.

2 years ago

The amount of work done on a body equals the change in ___________ of the body.

2 years ago

Write A if the statement is true, but if false, write B and then change the word(s) in the parentheses to make it true. The amount of work done on a body equals the change in (kinetic energy) of the body

2 years ago

A 3.2 kg crates slides along a 6.0 m horizontal surface with speed of 5.0m/s. It then moves down along an incline with a lenth 6.0m and a height from the ground of 4.5 mand then along a second, lower horizontal surface. The second horizontal surface has a...

2 years ago

The unstretched length of a spring is 35.0 cm. When a load of 2.0 kg is attached to the lower end of the spring, the spring elongates by 2.0 cm. What is the force constant of the spring? How much work is needed to increase its length from 35.0 cm to 40.0...

2 years ago

An object with a mass of 0.75 kg is projected over a horizontal surface with a speed of 2.5 m/s. It then comes to rest after 3.0 s. (a) How much is the change in kinetic energy of the object. (b) How much work is done on the object? (c) How far did the ob...

2 years ago

An object with a mass of 0.75 kg is projected over a horizontal surface with a speed of 2.5 m/s. It then comes to rest after 3.0 s. (a) How much is the change in kinetic energy of the object.

2 years ago

An object with a mass of 0.75 kg is projected over a horizontal surface with a speed of 2.5 m/s. It then comes to rest after 3.0 s. (b) How much work is done on the object?

2 years ago

An object with a mass of 0.75 kg is projected over a horizontal surface with a speed of 2.5 m/s. It then comes to rest after 3.0 s. c) How far did the object move before coming to rest?

2 years ago

An object with a mass of 0.75 kg is projected over a horizontal surface with a speed of 2.5 m/s. It then comes to rest after 3.0 s. (d) What is the value of kinetic friction?

2 years ago

A 375 g ball is thrown vertically upward with a speed of 3.0 m/s. How high did it go? How fast is it moving when it is 0.25 m high?

2 years ago

A 375 g ball is thrown vertically upward with a speed of 3.0 m/s. How high did it go?

2 years ago

A 375 g ball is thrown vertically upward with a speed of 3.0 m/s. How fast is it moving when it is 0.25 m high?

2 years ago

A 375 g ball is thrown vertically upward with a speed of 3.0 m/s. How high did it go? How fast is it moving when it is 0.25 m high? How fast is it moving when it is 0.25 m high?

2 years ago

The energy content of food is usually given in Calories. One Calorie is equal to 4186 J. Suppose a person uses 2000 Calories in a day to keep his vital organs functioning. (a) How much energy in joules is used? (b) What is his rate of energy consumption?

2 years ago

The energy content of food is usually given in Calories. One Calorie is equal to 4186 J. Suppose a person uses 2000 Calories in a day to keep his vital organs functioning. (a) How much energy in joules is used?

2 years ago

Kumpletuhin ang buong buod. ========================================= PLUMA: Ang Mabisang Sandata ni Jose P. Rizal 1. Marami ang humanga sa katapangan ni Rizal 2. Bitbit ni Rizal ang kaba ng siya'y bumalik sa Pilipinas. 3. Isinagawa niya ang mga objective...

2 years ago

Hinimok si Rizal ni Gobernador Heneral Emilio Terrero na lisanin ang bansa upang makaiwas siya at ang kaniyang pamilya sa pagmamalupit ng mga makapangyarihang prayle. Ipinahihiwatig lamang nito na A. ang mga Espanyol sa panahon na naisulat ang akda ang ma...

2 years ago

find the measure of the arc or angle indicated Pls solve. Given: Arc XY = 80 a) 29 b) 43 c) 50 d) 31

2 years ago

find the measure of the arc or angle indicated Pls solve. ADD SOLUTION Given: Arc XY = 80 a) 29 b) 43 c) 50 d) 31

2 years ago

Find the measure of the arc or angle indicated. Provide a perfect solution. Given: Arc JK = 140, Arc LJ = 60 Need: Angle J Choices: A) 88 B) 80 C) 70 D) 92

2 years ago

Find the measure of the arc or angle indicated. Provide a perfect solution. Given: Arc JL = 72, Arc LK = 88 Need: Angle L Choices: A) 100 B) 143 C) 142 D) 137

2 years ago

Find the measure of the arc or angle indicated. Provide a perfect solution. Given: Arc PL = 62 Need: Angle NMP Choices: A) 86 B) 40 C) 59 D) 79

2 years ago

Find the measure of the arc or angle indicated. Provide a perfect solution. Given: Arc MK = 116, Angle K = 47 Need: Arc KL Choices: A) 77 B) 167 C) 109 D) 150

2 years ago

Find the measure of the arc or angle indicated. Provide a perfect solution. Given: Arc MK = 116, Angle K = 47 Need: Arc KL Choices: A) 77 B) 167 C) 109 D) 150 The answer is D) 150. Please explain why

2 years ago

Find the equation of... a) the tangent line b) the normal line of the equation: f(x) = √x^2 - 1, @ x=1 Show the correct solution

2 years ago

Find the equation of the tangent and normal line of the equation: Show your solution f(x) = √x^2 - 1, at x = 1

2 years ago

Find the equation of the tangent and normal line of the equation: f(x) = √x^2 - 1, at x = 1 Show your complete solution

2 years ago

My apologies for the wrong formatting, here's the corrected one. Find the equation of the tangent and normal line of the equation: f(x) = √(x^2 - 1), @ x = 1 Show your complete solution

2 years ago

A skater is rotating with his arms outstretched. When a skater draws his arms toward his body, his angular velocity (decreases, increases). Pick the right answer in the parentheses

2 years ago

Mars revolves around the sun in 687 Earth days, which represents a Martian year. How far is Mars from the sun? Express your answer in astronomical units.

2 years ago

Mars revolves around the sun in 687 Earth days, which represents a Martian year. How far is Mars from the sun? Express your answer in astronomical units. (Show a complete solution)

2 years ago

A horizontal pipe has a constriction. For water flowing from a wide pipe to the constricted pipe, the flow rate (decreases) State if the statement is TRUE or FALSE based on the word in the parentheses, and give the right answer.

2 years ago

Thanks for your help. For the answer I got it to be 0.925837321 by following your directions. When I submitted it to my online homework it said the answer was wrong and off by more than 10%.

14 years ago

By taking 3.87E9/4.18 then dividing it by the flow rate of the water (1.0E6 kg/s = 1.0E9 g/s)

14 years ago

Thanks for your help! I got the correct answer

14 years ago

PQR is an interior triangle within triangle PST. QR runs parallel to ST.

11 years ago

These questions didn't come from the the text. The teacher was saying them out loud and we were supposed to write them down. He got them from our test. I'm confused with the third question too, my step dad said the same thing. I think I found the answers...

9 years ago

42... It's always 42

9 years ago

Thanks Damon as always.

7 years ago

Hello, brother.

4 years ago

Helo brother ^^

3 years ago

What is the irony of Samneric’s behavior?

3 years ago

Good AM mathhelper! I highly appreciate your solution and answer. And to answer your question, I put that so people don't put answers that may not be related or using other questions as excuses like they didn't actually study. I'm currently in blended lea...

2 years ago

I appreciate your answers, but at the same time, I'm sorry for not saying this, but put the answers like this: A) Focus: (solution here.) --------------------------- B) Vertex: (solution here.) --------------------------- and so on

2 years ago

I appreciate your answers, but please show your solutions, if you please ❤️💜

2 years ago

TRUE ANSWER: 47° x 2 = 94° (The measurement of the central angle is twice that of the inscribed angle) 116° + 94° = 210° 360° - 210° = 150°

2 years ago