Sunday

September 25, 2016
Total # Posts: 2,426

**Physics**

In a typical golf swing, the club is in contact with the ball for about 0.0010s. If the 45-g ball acquires a speed of 59m/s, estimate the magnitude of the force exerted by the club on the ball.

*December 2, 2015*

**Physics**

Two ice skaters stand at rest in the center of an ice rink. When they push off against one another the 61-kg skater acquires a speed of 0.63 m/s . If the speed of the other skater is 0.86 m/s , what is this skater's mass?

*December 2, 2015*

**Physics**

Two ice skaters stand at rest in the center of an ice rink. When they push off against one another the 61-kg skater acquires a speed of 0.63 m/s. If the speed of the other skater is 0.86 m/s, what is this skater's mass?

*December 2, 2015*

**Science**

Okay. Thank you!!

*November 30, 2015*

**Science **

Suppose the moon rotated on its axis just as quickly as earth. Would you still see the same side of the moon from earth? Please help!

*November 30, 2015*

**math**

plant a produced 8000 fewer panels than plant b, 4 % of the panels from plant a, and 3% of the panels from plant b were defective, how many panels did plant a produce if the two plants together produced 660 defective panels?

*November 16, 2015*

**Algebra**

Find the vertex of the parabola by first finding the x-value of the vertex by -b/2a Then plug the x-value you got back into the original function R(x) The y-value of the vertex is the max. revenue

*November 11, 2015*

**Physics**

Thank you so much

*November 11, 2015*

**Physics**

A 10kg mass is suspended as shown: i.gyazo[dotcom]/47dc49d5ec1eebe950472dba5f692e70.png (remove the brackets) What is the tension in the cord between points A and B? What is the tension in all of the cords? Thanks for the help, I just can't figure it out...

*November 11, 2015*

**Physics**

At a playground, a 22kg child plays on a slide that drops through a height of 2.1m. The child starts at rest at the top of the slide. On the way down, the slide does a nonconservative work of -371J on the child. What is the child's speed at the bottom of the slide?

*November 11, 2015*

**Physics**

Thank you!

*November 10, 2015*

**Physics**

Where did you get 1.44?

*November 10, 2015*

**Physics**

Catching a wave, a 77-kg surfer starts with a speed of 1.2 m/s, drops through a height of 1.60 m, and ends with a speed of 8.5 m/s. How much nonconservative work was done on the surfer?

*November 10, 2015*

**Physics**

An 91.0 kg in-line skater does 3620 J of nonconservative work by pushing against the ground with his skates. In addition, friction does -615 J of nonconservative work on the skater. The skater's initial and final speeds are 2.70 m/s and 1.02 m/s, respectively. Part B ...

*November 9, 2015*

**Physics**

A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits the ground at the base of the cliff, the rock has a speed of 32 m/s . Part A Assuming that air resistance can be ignored, find the initial speed of the rock. Part B Find the ...

*November 9, 2015*

**Physics**

A 55-kg packing crate is pulled with constant speed across a rough floor with a rope that is at an angle of 41.0 ∘ above the horizontal. If the tension in the rope is 195 N , how much work is done on the crate by the rope to move it 3.0 mm ?

*November 9, 2015*

**Trig**

Find all angles θ between 0° and 180° satisfying the given equation. (Enter your answers as a comma-separated list. Round your answers to one decimal place.) Sin θ = 1/4

*November 9, 2015*

**ratios**

A gallon of milk costs $3.00. If there are 128 ounces = 1 gallon ,how much money does an 8 ounce glass of milk cost?

*November 4, 2015*

**geometry**

it is not 6 its 9 because 2.5/15=1.5/h cross multiply and divide

*November 3, 2015*

**trig**

Find the component form of v given its magnitude and the angle it makes with the positive x-axis. Sketch v. Magnitude Angle ||v||= 7/2 45 degrees v=( , )

*November 2, 2015*

**Geometry**

I'm not sure how to complete a two-column proof: Given <2=<4,m<2=100 Prove:m<3=70 All i have so far: <2=<4, m<2=100 : Given M<2 =m <4 :definition of congruent angles M<4=110 : ? M<3+m<4= 180 : ? M<3=70 : ? This is so stressful, please...

*November 2, 2015*

**Chemistry**

Based solely on the amount of available carbon, how many grams of sodium oxalate, Na2C2O4, could be obtained from 175 g of C6H6? (Assume that no loss of carbon occurs in any of the reactions needed to produce the Na2C2O4.)

*October 15, 2015*

**Math**

David runs 8 meters in 1 second,16 meters in 2seconds,24 meters in 3 seconds and 32 meters in 4 seconds.Determine whether David's distance is proportional to the number of seconds he runs by graphing on a coordinate grid.explain your reasoning

*October 13, 2015*

**Physics**

A model rocket rises with constant acceleration to a height of 3.1 m, at which point its speed is 26.0 m/s. A.) How much time does it take for the rocket to reach this height? B.) What was the magnitude of the rocket's acceleration? C.) Find the height of the rocket 0.15 s...

*September 14, 2015*

**Geometry**

what is the difference between line p (-4, 3) and q (6, 1)? round to the nearest tenth. This is practice please help!

*September 14, 2015*

**physics**

A rocket is fired at a speed of 66.0 m/s from ground level, at an angle of 63.0 ° above the horizontal. The rocket is fired toward an 31.2-m high wall, which is located 28.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...

*September 11, 2015*

**physics**

A swimmer, capable of swimming at a speed of 1.18 m/s in still water (i.e., the swimmer can swim with a speed of 1.18 m/s relative to the water), starts to swim directly across a 2.16-km-wide river. However, the current is 1.19 m/s, and it carries the swimmer downstream. (a) ...

*September 11, 2015*

**math **

Product A is a 12-ounce bottle of generic popcorn oil that sells for $1.39. Product B is a 24-ounce popcorn oil bottle that costs $2.79. Which is the better buy?

*September 11, 2015*

**Chem**

What is the balanced net ionic equation for magnesium metal being placed in a solution of gold(3) chloride ?(with steps please)

*September 8, 2015*

**Chem **

What is the balanced net ionic equation for aluminum foil reacting with hydrochloric acid ? (with steps please)

*September 8, 2015*

**chemistry**

What is the mass of 0.0137 mol of aspirin?

*September 7, 2015*

**math**

225 over 4 times 1 over 100

*September 4, 2015*

**algebra**

the width of my garden is 10 feet shorter than twice the length. the perimeter is 70 feet. find the length and the width

*September 3, 2015*

**English 3**

Choose the correct relative pronoun in the sentence: (answer I think is correct) Mrs. Eggelson tells _____ will listen about her health problems. whoever (whomever) The children argued about the actor _____ should receive the award. (who) whom Few people knew the woman _____ ...

*August 27, 2015*

**English 3**

Choose the correct relative pronoun in the sentence: I have great respect for _____ accepted that responsibility. whoever whomever Is the answer whomever?

*August 27, 2015*

**English 3**

Identify the main clause in the sentence below. Then decide if the subordinate clause is used as noun, adjective, or adverb. Chris's chief interest was tennis, which he was just learning to play. Main Clause: which he was learning to play. Subordinate Clause Type: adjective?

*August 24, 2015*

**Math**

I need a step by step solution to this problem. I'm preparing for the GKT and I can't remember how to solve these problems. This is just a sample question from the gkt practice packet. A building 51 feet tall casts a shadow 48 feet long. Simultaneously, a nearby statue...

*August 19, 2015*

**From Theory to practice**

According to Leeds, at snack time, children should be given _______ of each food for each year of their lives. A. two tablespoons B. one cup C. one-quarter cup D. one tablespoon B.

*July 16, 2015*

**From theory and practice**

Introducing organized sports among young children is not recommended because A. they lack the social interaction skills needed. B. they should be making up their own rules.C. they lack the necessary physical maturation needed.D. this excludes the teacher or caregiver from a ...

*July 16, 2015*

**From theory and practice**

Ok thank you :)

*July 16, 2015*

**From theory and practice**

My answer is D

*July 16, 2015*

**From theory and practice**

The most fundamental principle behind learning is that children A. learn through play. B. construct knowledge. C. learn through social interaction. D. learn when their physical needs are satisfied. My answer is A

*July 16, 2015*

**From theory and practice**

Which of the following is an example of a closed skill? A. Hitting a pitched ball B. Striking a stationary ball C. Playing tag D. Catching a butterfly My answer is B

*July 16, 2015*

**From theory and practice**

Thank you Ms. Sue

*July 16, 2015*

**From theory and practice**

Which of the following is an obstacle to learning for a beginning mover? A. Chronic indifference characteristic between birth and age three B. Knowledge of what elements of the movement to focus on C. Shorter time to monitor perceptual input from the visual system D. Difficult...

*July 16, 2015*

**From theory and practice**

When a child pulls up in an attempt to maintain upright position, he is demonstrating a(n) _______ reflex. A. locomotor B. endometric C. primitive D. postural My answer is D

*July 16, 2015*

**From theory and practice**

I don't know what school Oh ok so probability is the corrected word Thank you very much.

*July 16, 2015*

**From theory and practice**

I don't go to a school I'm helping a friend of mine.

*July 16, 2015*

**From theory and practice**

The major emphasis of movement programs for young children is the development of concepts. Which of the following three major categories are they broken into? A. What, who, and where B. Movement, skill, and fitness C. Awareness, knowledge, and understanding D. Body, space, and...

*July 16, 2015*

**From theory and practice**

Which of the following is best suited to a formative assessment of progress? A. Muscular strength and endurance B. Awareness of self and space C. Body fat analysis D. Flexibility My answer is B

*July 16, 2015*

**From theory and practice**

A child throws a ball with speed and accuracy when he throws a ball to his teacher but his throws are slower and less accurate when plays with a group of friends. This difference is explained by A. classical stage theory B. probility theory C. locomotion-x ...

*July 16, 2015*

**Math **

The treadmill is set at its maximum slope of 0.20. The run is 80 inches. What is the rise?

*July 15, 2015*

**Math **

The coordinates of the top of a hill are (2, 14). The coordinates of the bottom of the hill are (10, 2). Given this information, what is the slope of the hill?

*July 15, 2015*

**Math **

The mass of a cat is about 3.6 kg. Use the formula b 0.01m0.7 where b represents the brain mass and m represents the body mass. What is the approximate mass of the cat’s brain?

*July 13, 2015*

**Math **

How do you write the square root of 3 in exponential form? or any other radical into exponential form

*July 10, 2015*

**Math **

Irrational numbers are: 1-Not fractions 2-Non-terminating and non-repeating decimals 3-Radicals that do not simplify to whole numbers 4-All of the above.

*July 9, 2015*

**Math **

The set of numbers which includes all positive numbers that are not decimals and which includes zero is the set of? Integers Natrual numbers Whole numbers Rational numbers

*July 9, 2015*

**Math **

A pencil has a cylindrical body with a cone-shaped end. The cylinder is 5 cm long with a radius of 0.29 cm. The cone has a slant height of 1 cm and has the same radius as the cylinder. Determine the surface area of the pencil to the nearest tenth of a square centimeter.

*July 8, 2015*

**Measurement**

Convert 5 kilometers to miles and the nearest yard.

*July 8, 2015*

**Math **

A “gazing ball” is a spherical garden ornament with a mirrored surface that reflects its surroundings. The surface area of the ball is approximately 314 square inches. What is its volume to the nearest cubic inch?

*July 8, 2015*

**Triginometry**

From the top of the Metro Building, the angle of elevation of the top of the Gammapro Building is 24° and the angle of depression to the foot of the Gammapro Building is 56°. If the buildings are 45 m apart, determine the height of each building to the nearest meter.

*July 7, 2015*

**Math**

From the top of the Metro Building, the angle of elevation of the top of the Gammapro Building is 24° and the angle of depression to the foot of the Gammapro Building is 56°. If the buildings are 45 m apart, determine the height of each building to the nearest meter.

*July 7, 2015*

**Math**

Two trees in a park are 14.80 meters apart. An observer, whose eye line is 1.80 m above the ground, is standing halfway between the trees. The angles of elevation of the tops of the trees from the observer’s eye line are 17° and 23°. Determine the height of each ...

*July 7, 2015*

**Math**

From the window of one building, Matt finds the angle of elevation of the top of a second building is 33° and the angle of depression to the bottom of the same building is 55°. The buildings are 25 meters apart. Find the height of the second building to the nearest ...

*July 7, 2015*

**Finite Math**

Pivot the matrix about the element 4 1 3 5 5 4 2

*July 2, 2015*

**From Theory to practice**

Probility theory The branch of mathematics that studies the likelihood of occurrence of random events in order to predict the behavior of defined systems.

*July 1, 2015*

**From Theory to practice**

A child throws a ball with speed and accuracy when he throws a ball to his teacher but his throws are slower and less accurate when plays with a group of friends. This difference is explained by A. classical stage theory B. probility theory C. locomotion-x ...

*July 1, 2015*

**From Theory to practice**

Two children using finger paints agree to share them. They're engaged in _______ play. A. parallel B. associative group C. groupthink D. cooperative Answer is B

*July 1, 2015*

**From Theory to practice**

Thank you

*July 1, 2015*

**From Theory to practice**

A child bringing her mouth into contact with a nipple is an example of a(n) _______ reflex.A. primitive B. endometric C. locomotor D. rudimentary Answer is A

*July 1, 2015*

**From Theory to practice**

A child who hasn't learned the prerequisite fundamentals needed for a combination of motor patterns is suffering fromA. proficiency barrier.B. poor muscle control.C. anxiety.D. nonacquisition barrier. Answer is B

*July 1, 2015*

**From Theory to practice**

A child who moved from throwing a ball using only an elbow movement to throwing a ball using her elbow, wrist, and shoulder is showing signs of _______ development. A. spatial B. intertask C. joint-plate D. intratask Answer is D

*July 1, 2015*

**From Theory to practice**

A child who responds "no" to every request is demonstrating A. hereditary distemper. B. nascent narcissism. C. willful obstinacy. D. autonomy. answer is D

*July 1, 2015*

**From Theory to practice**

A teacher requests that a child use a small stepladder to reach a book on a shelf. She is helping the child develop A. locomotor reflexes. B. spatial awareness. C. movement qualities. D. primitive reflexes. Answer is B

*July 1, 2015*

**From Theory to practice**

A plant in the classroom appears to be wilting. The children are asked to come up with as many possible explanations for this as they can. They're engaged in the second stage of decision making, called A. railroading ideas. B. brainstorming. C. groupthink. D. herding ideas...

*July 1, 2015*

**From Theory to practice**

Thank you

*July 1, 2015*

**From Theory to practice**

. A very young child takes his sock off. The caregiver puts it back on. This process is repeated over and over. The child is engaging in _______ play.A. constructive B. rule-based C. functional D. dramatic Answer D but I'm thinking about C

*July 1, 2015*

**From theory and practice**

Thank you

*July 1, 2015*

**From theory and practice**

One component of a healthy diet is a high amount of A. monounsaturated fats. B. sodium. C. grains. D. polyunsaturated fats. Answer is C

*July 1, 2015*

**From Theory to practice**

Thank you

*July 1, 2015*

**From Theory to practice**

Children learning to take their heart rates are demonstrating A. movement relations. B. body concept. C. body awareness. D. fitness concept. Answer D

*July 1, 2015*

**Statistics**

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 1264 chips and a standard deviation of 116 chips. (a) Determine the 28th percentile for the number of chocolate chips in a bag. (b) Determine the number of ...

*June 30, 2015*

**Statistics**

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 1264 chips and a standard deviation of 116 chips. (a) Determine the 28th percentile for the number of chocolate chips in a bag. (b) Determine the number of ...

*June 30, 2015*

**Parents, Finances, and School-Age Children**

What fundamental motor patterns do girls tend to attain more quickly than boys do? a. throwing and kicking b. hopping and skipping c. striking moving objects d. running and jumping My answer B

*June 30, 2015*

**economic**

Are there any current subsidy or welfare issues that are being discussed or addressed in parliament or in municipalities?

*June 17, 2015*

**Math**

I'm graphing this periodic function, it has the same min value for each for the two periods, but the max value is different for the two periods. Should I use the higher max value to work out the equation for the function, or should I average them?

*June 6, 2015*

**Math**

at what time was the incline at 1.71m, if it is at 1.9m now and at 1.4m one hour ago? (assuming that it declining evenly at the same rate)

*June 6, 2015*

**math**

Imagine you are the owner of a pizza shop that offers three different types of crusts, seven different toppings, and three different cheeses. Create an advertisement for your shop with three lists: one for crusts, another for toppings, and a third for cheeses. In your ...

*June 2, 2015*

**math**

How many ways are there to move from one corner of a cube to the diagonally opposite corner, in three moves, each of which travels along one edge of the cube?

*May 20, 2015*

**Life orientation**

Why traditional african marriage is an advantage for men only not women

*May 17, 2015*

**Geometry/Math**

Two right circular cylinders have equal volume. The first cylinder has a radius of 6 inches and a height of 12 inches. What is the number of inches in the height of the second cylinder if its radius is 8 inches? Express your answer as a common fraction, without units.

*May 13, 2015*

**math**

which of the triangles described in the table is a right triangle? triangle side 1 side 2 side 3 Q 25 20 15 R 26 20 46 S 25 20 1025 T 25 26 650

*May 4, 2015*

** literature**

The from of the poem "Gods Grandeur" is that of

*May 4, 2015*

**Career**

1.)How people produce, distribute, and use goods and services? a.) Economy b.) Free enterprise system c.) Competition d.) Profit 2.)The amount of goods and services available for sale. a.) Producers b.) Consumers c.) Supply d.) Demand 3.)The amount of money left over after the...

*April 30, 2015*

**science **

when evolution was first proposed which of the following was used as evidence to support the idea? a.)Observations of nature b.) Laboratory experiments c.) Extensive fossil collections d.) genetic sequences

*April 29, 2015*

**SCIENCE HELP! Ms.Sue**

I took the test and I got A 4/4 100%. Thanks for helping me and now in return I help you.

*April 27, 2015*

**SCIENCE HELP! Ms.Sue**

Renewable and Nonrenewable resources test 1.) Which of the following is the best course of action when it comes to using natural resources ? Answer: C = Conservation should be implemented for both renewable and nonrenewable resources. 2.) In the 1930s, windmills were widely ...

*April 27, 2015*

**Physics**

In an exhibit at the NASA museum in Huntsville, AL, there is a “human centrifuge”. Guests stand upright against the walls of a circular room with a radius of 8 meters which then spins at an angular velocity ω about an axis through its center. Then, once the room...

*April 26, 2015*

**ENGLISH**

yes should be allowed in suburbs because its help us a lot

*April 18, 2015*

**physics**

Decide whether each of the following statements are T-True, or F-False. A) Velocity anti-nodes of standing air waves occur at closed ends of tubes. B) Pressure nodes of standing air waves occur at closed ends of tubes. C) Velocity nodes of standing air waves occur at open ends...

*April 16, 2015*