# minimum length of the mirror needed to see the whole body at any distance

61,083 results

**physics**

Tigger likes to play golf. For this particular shot, the distance between the spine and the clubhead (aka the distance of the golfclub + arm) is 1.6 m. When the clubhead hits the ball, it is travelling at 50 m/s. How fast is the body and the club rotating? That is, what is the...

**Physics**

When dots are placed on a page from a laser printer, they must be close enough so that you do not see the individual dots of ink. To do this, the separation of the dots must be less than Raleigh’s criterion. Take the pupil of the eye to be 2.9 mm and the distance from the ...

**Health Sciences**

Your body is covered with skin. It helps regulate body temperature, gathers information from the environment, and what other functions? a. protects the body from allergy, infection, and injury b. protects the body from infection, injury, and scars c. protects the body from ...

**Algebra**

add. (5r^4-3r^3+3r^2+14r-8)+(r^5+8r^3+7r^2-3r+5)+(-8r^4+r^2-8r-9)the answer I came up with is r^5-3r^4+5r^3+11r^2+3r-12. This is my first time doing this can someone help me to see if this is correct.That is one whole equation.

**algebra**

a ladder is against a building. The distance from the bottom of the building to the ladder is 9 feet less than the length of the ladder. How high up the side of the building is the top of the ladder if that distance is 2ft. less than the length of the ladder?

**Calculus**

Find the minimum distance, measured horizontally, between the graphs of y=x and y=x^3

**math-light**

An object 5 millimeters high is located 15 millimeters in front of a plane mirror. How far from the mirror is the image located? A. 5.0 millimeters B. 7.5 millimeters C. 15 millimeters D. 30 millimeters

**Calculus (pleas help!!!)**

Find the absolute maximum and absolute minimum values of the function f(x)=(x−2)(x−5)^3+11 on each of the indicated intervals. Enter -1000 for any absolute extrema that does not exist. (A) Interval = [1,4] Absolute maximum = Absolute minimum = (B) Interval = [1,8...

**Calculus (pleas help!!!)**

Find the absolute maximum and absolute minimum values of the function f(x)=(x−2)(x−5)^3+11 on each of the indicated intervals. Enter -1000 for any absolute extrema that does not exist. (A) Interval = [1,4] Absolute maximum = Absolute minimum = (B) Interval = [1,8...

**Physics**

A car starts from rest and attains a velocity of 40 metres per second in 20 seconds. it maintains this velocity for 30 seconds and then comes to rest in 25 seconds. 1. sketch the velocity time graph for the motion. 2. Calculate the acceleration of the body. 3. Calculate the ...

**Electricity and Electronics**

If one body is positively charged and another body is negatively charged, free electrons tend to A. move from the negatively charged body to the postively charged body. B. move from the postively charged body to the negatively charged body. C. remain in the negatively charged ...

**Physics(IMPORTANT)**

A block of mass m = 2 kg on a horizontal surface is connected to a spring connected to a wall (see figure). The spring has a spring constant k =10 N/m. The static friction coefficient between the block and the surface is mÎ¼s =0.7 , and the kinetic friction coefficient is m...

**Physics plz help :(**

Q.) A block of mass m=2 kg on a horizontal surface is connected to a spring connected to a wall (see figure). The spring has a spring constant k= 18 N/m. The static friction coefficient between the block and the surface is μs= 0.7 , and the kinetic friction coefficient is...

**Pre Calc!**

A drug is eliminated from the body through urine. Suppose that for a dose of 10 milligrams, the amount A(t) remaining in the body t hours later is given by A(t)=10(0.8)^t and that in order for the drug to be effective, at least 2 milligrams must be in the body. (a) Determine ...

**Pre Calc!**

A drug is eliminated from the body through urine. Suppose that for a dose of 10 milligrams, the amount A(t) remaining in the body t hours later is given by A(t)=10(0.8)^t and that in order for the drug to be effective, at least 2 milligrams must be in the body. (a) Determine ...

**strategy**

do you believe an individual department’s mission statement can succeed without considering the company’s overall vision and mission statements – why or why not? i believe there could be a possibility. It depends on how together the company is. if the company is falling ...

**math**

A kite and its tail total 36 ft in length. The tail is five times the length of the body. How long is the kite's tail?

**English**

Can you tell me if the following sentences are possible? Thank you very much. 1) I get a lift with my dad on his motorbike. My dad gives me a lift on his motorbike. 2) I ride my motorbike to school. It takes me ten minutes to ride my motorbike to school. It takes me ten ...

**math**

a square has an area of 71 between what two whole numbers is the length of the side?

**pre-cal**

find the length of side b ABC to the nearest whole number if A = 42, B = 87, and a = 24

**Physics**

Tom the train and Dan are involved in an elastic collision. A 2.5 kg Tom is, at rest but is approached head-on by a 5.0 kg Dan moving at 0.60 m/s. The force-separation graph for the ensuing collision is given: the picture of the graph is found here: i54.tinypic (dot) com/...

**Physics**

A 2.9 kg body is at rest on a frictionless horizontal air track when a horizontal force F acting in the positive direction of an x axis along the track is applied to the body. A stroboscopic graph of the position of the body as it slides to the right is shown in the figure. ...

**Algebra II**

Each of the three dimensions of a cube with sides of length s centimeters is decreased by a whole number of centimeters. The new volume in cubic centimeters is given by V(s) _ s3 _ 13s2 _ 54s _ 72. a) Find V(10). b) If the new width is s _ 6 centimeters, then what are the new ...

**Physics**

In an experiment, a seabird was taken from its nest, flown a distance 5190 km away, and released. It found its way back to its nest a time 13.8 days after release. What was the bird's average velocity in m/s for the whole episode, from leaving the nest to returning? Would I ...

**physics ---- really dnt get this at all**

A 5.00 cm tall candle is placed at a distance of 50.0 cm from a double convex lens having a focal length of 15.0 cm. What is the image distance? Choose one answer. a. -21.4 cm b. 21.4 cm c. 65 cm d. 35 cm

**physics**

when a force of 0.245 newtons is applied to a body of mass 250g which is resting on a horizontal plane, the body is found to be in a limiting equilibrium. find the coefficient of friction between body and planes.

**ALGEBRA (MAT 117)**

2. The D = 1.2(sqrt)h equation gives the distance, D, in miles that a person can see to the horizon from a height, h, in feet. a. Solve this equation for h. b. Long’s Peak in the Rocky Mountain National Park, is 14,255 feet in elevation. How far can you see to the horizon ...

**ALGEBRA-MAT 117**

The equation D=1.2(SQRT)H gives the distance, D, in miles that a person can see to the horizon from a height, h, in feet. A. Solve this equation for h. B. Long’s Peak in the Rocky Mountain National Park, is 14,255 feet in elevation. How far can you see to the horizon from ...

**Algebra**

2. The equation D=3.59 (sqrt)h gives the distance, D, in kilometers that a person can see to the horizon from a height, h, in meters. a. Solve this equation for h. b. Mount Evans in the Rocky Mountain National Park, is approximately 4,450 meters in elevation. How far can you ...

**science**

light reflects off a mirror. light reflects off the white surface of a ceiling or wall. why can you see images in amirror but not a celing or wall?

**HELP! - Physics**

I need help with this. A frustrated farmer is trying to move a large rock from his land. The stone has a mass of 1275 kg. By using a piece of board as a lever and a fulcrum the farmer will have a better chance of moving the rock. The farmer places the fulcrum 0.288 m from the ...

**physics**

A jeweler inspects a watch with a diameter of 3.6 cm by placing it 8.0 cm in front of a concave mirror of 12.6 cm focal length. (a) Where will the image of the watch appear? (b) What will be the diameter of the image?

**English 11 (No country for Old men Novel Study)**

Im doing an essay on the lack of redemption shown in the novel No country for old men. I needs 1000-1200 words and i got about 7 paragraphs these include -Thesis -Body paragraph 1(the corruption of money) -Body paragraph 2(the curruption of youth) -Body Paragraph 3(Need a ...

**algebra help**

I am really confused on this question can some one help me out please the length of a rectangular playing field is 5 ft less than twice its width If the perimeter of the playing field is 230 ft. find the length and width of the field. I believe i am suppose to start with P+2w+...

**English**

help with participles The rude person, shoving others aside, went to see the manager. Would the participle be shoving The lake, frozen solidly, looked like a huge mirror. Would the participle be frozen?

**stats**

A normal distribution has a mean of µ = 28 with σ = 5. What is the minimum raw score needed to be in the top 25% of the distribution?

**physics**

If a car takes a banked curve at less than the ideal speed, friction is needed to keep it from sliding toward the inside of the curve (a real problem on icy mountain roads). (a) Calculate the ideal speed to take a 95 m radius curve banked at 15°. m/s (b) What is the minimum ...

**Science**

A car starts from rest and attains a velocity of 40 metres per second in 20 seconds. it maintains this velocity for 30 seconds and then comes to rest in 25 seconds. 1. sketch the velocity time graph for the motion. 2. Calculate the acceleration of the body. 3. Calculate the ...

**physics**

The brakes on your automobile are capable of creating acceleration of 14 ft/s2. If you are going 66 mi/hr and suddenly see a state trooper, what is the minimum time required to get your car to 55 mi/hr?

**languages**

Complete the following matrix. For each body system, identify which body approach(es) might best be used to organize information. Choose only from the following approaches: microscopic-to-macroscopic, body directions and planes, body cavities, and quadrants and regions. ...

**math**

the perimeter of a paved area being built at a playground is going to be 46 meters. if the length and width are each a whole number of meters, what should the length and width of the area be to cover the greatest possible area? draw a picture and make an organized list to solve

**physics**

An eyepiece is made of two positive thin lenses, each of focal length f = 20 mm, separated by a distance of 16 mm. (a) Where must a small object viewed by the eyepiece be placed so that the eye receives parallel light from the eyepiece? (b) Does the eye see an erect image ...

**Physics**

A metre rule is found to balance at 51cm mark.When a body of 70g is suspended at the 10cm mark,the balance point is found to be at 25cm mark.Find the mass of the ruler and the distance of the balance point from the zero end,if the body were move to the 20cm mark.

**physics**

If a car takes a banked curve at less than the ideal speed, friction is needed to keep it from sliding toward the inside of the curve (a real problem on icy mountain roads). (a) Calculate the ideal speed to take a 105-m radius curve banked at 13.0°. km/h (b) What is the ...

**Math**

Please Help A body consists of a solid hemisphere of radius r joined to a right circular cone of base radius r and perpendicular height h. The plane surfaces of the cone and hemisphere coincide and both solids are made of the same material. Show that the centre of gravity of ...

**physics**

calculate the image positions and magnifications for an object 3cm tall and a mirror of focal length +12 with the object at the following positions: 2.5 f, 2.0 f, 1.5 f, 0.5 f. please help me don't understand it at all. it would be best if you can explain it to me rather than ...

**Algerbra**

I need help solving the b portion of the equation. 15. Assume that a surveyor stands at the top of a mountain that is “h” feet tall. If the distance (in feet) that he can see is defined by d = 3200.2 SQRT(h), then answer the following. (a) How far can the surveyor see from...

**Chemistry**

The equation for the reaction that occurs when lead(II) oxide is heated with coke in a blast furnace is: 2PbO+c -->2Pb+CO2 (i)State, with a reason, whether PbO is oxidised or reduced in this reaction. (ii)Calculate the minimum mass, in tonnes, of coke needed to react with ...

**College Physics**

6. A tall bald student (height 2.1 meters and mass 93.1 kg) decides to try bungee jumping from a bridge. The bridge is 36.7 meters above the river and the "bungee" is 25.3 meters long as measured from the attachment of the bridge to the foot of the jumper. Treat the "bungee" ...

**Calculus**

Use analytical methods to find the exact global maximum and minimum values of the function f(x)=8x-ln(4x) for x >0. If a global maximum or minimum does not exist, enter the word NONE. For the global maximum at x=none, But for the Global minimum at x=? Is the Global minimum ...

**Physics**

A pair of eyeglasses is designed to allow a person with a far-point distance of 2.06 to read a road sign at a distance of 20.6. Find the focal length required of these glasses if they are to be worn 2.50 from the eyes.

**algebra**

The equation D=1.2times square root h gives the distance, D, in miles a person can see to the horizon from a height, h, in feet. a. sovle for h. b. Long's Peak is 14,255 feet in elevation. How far can you see to the horizon for Long's Peak? Can you see Cheyenne, Wyoming (about...

**science**

1. An object 5 millimeters high is located 15 millimeters in front of a plane mirror. How far from the mirror is the image located? A. 5.0 millimeters B. 7.5 millimeters C. 15 millimeters D. 30 millimeters

**health**

I am completely confused can anyone help me? Here is my question.... For each body system, identify which body approach(es) might best be used to organize information. Choose only from the following approaches: microscopic-to-macroscopic, body directions and planes, body ...

**Calculus**

A friend of mine was selling the lumber from his old barn to be repurposed. Knowing that I liked old wood, he set aside a board totaling 12 feet in length for me. I want to cut it to form a rectangular frame for a mirror. What should the dimensions be to provide the largest area?

**Calculus Help**

The deal your assistant signs calls for the sale of a minimum of 260 chairs and up to 410 chairs. The price will be $88 per chair if only 260 chairs are bought, but will be discounted by $0.2 per chair (on the entire order) for every chair ordered in addition to the minimum. ...

**chemistry AP**

Give a scientific explanation for the following observations: Perspiring is a mechanism for cooling the body -is it because when something is heated it produces a salt and h2o, so when our body heats up the chemicals in our body let out salt and water, essentially combining to...

**maths**

two straight poles length 80m, 50 m vertically with a distance 40m. a rope is connected their tops. find the length of the rope?

**Math**

Identify the elements of the set being described by the rule 1. M= {x/x is a whole number and 2<x<8} 2. A= {2x +1/x is a whole number and 0 <x<5} 3. T= {x2/x ia an integer and -2 <x<2} 4. H= {x-5/ x is a whole number and 15 <x<20} 5. S = {x/x is a ...

**physics**

A 1289 Hz sound from the speaker enters a tube at point A. It then takes two paths, ACD or ABD. Minimum sound is heard when ACD has a length of 94.2 cm and ABD has a length of 41.0 cm. The length of ACD is slowly increased until the point of maximum loudness is found when ACD ...

**MATHS HELP plz**

A parcel in the form of a rectangular block is held together by three pieces of tape . The parcel has square ends of side x cm and is y cm in length. Express the total length of tape in terms of x and y. Given tat the total length of tape is 450 cm, express the volume, V cm3 (...

**Pre-Calculus**

This is application question. Bacterial Control. If t days after treatment the bacteria count per cubic centimeter in a body of water is given by C(t) = 10t^2 - 120x + 800 0 <= t <= 9 Thn in how many days will the jcount be a minimum? I got this result: 20(t^2 - 6 + 40) ...

**math**

A rectangular box of the dimensions 4 x 2 x 2 units is to be tied up with a ribbon lengthwise and breadthwise only once. For the knot, an additional 4 units of ribbon-length is required. What is the number of minimum units of ribbon-length required for this activity ?

**Electronic**

If one body is positively charged and another body is negatively charged, will the free electrons tend to move from the negatively charged body to the positiovely charged body? yes

**physics**

A laboratory (astronomical) telescope is used to view a scale that is 306 cm from the objective, which has a focal length of 20.0 cm; the eyepiece has a focal length of 2.40 cm. Calculate the angular magnification when the telescope is adjusted for minimum eyestrain. (Note: ...

**college**

the inverted image of a light bulb is formed on a screen located 9 metres from spherical mirror.the image is 4 times larger than the light bulb.determine the object distance

**physics**

Question: 15 of 30: The distance versus time plot for a particular object shows a quadratic relationship. Which column of distance data is possible for this situation? Time (s) A. Distance (m) B. Distance (m) C. Distance (m) D. Distance (m) E. Distance (m) 0 0 2.00 9.00...

**math**

last year mc donald sold 5*10^9 packet of french fries. if we put french friesbend to end estimate the total distance? calculate the order of magnitude?compare the distance? i need to see details in calculations plz thank you

**math**

The distance between goalpost, BC, is three times the distance from the top of the goalpost to the bottom. If the perimeter of ABCD is 21 1/3 yards, what is the length of BC

**Math**

The distance between goalpost, BC, is three times the distance from the top of the goalpost to the bottom. If the perimeter of ABCD is 21 1/3 yards, what is the length of BC

**Physics, still don't get it!**

Suppose a monatomic ideal gas is contained within a vertical cylinder that is fitted with a movable piston. The piston is frictionless and has a negligible mass. The area of the piston is 3.06 10-2 m2, and the pressure outside the cylinder is 1.02 105 Pa. Heat (2109 J) is ...

**Math**

Are these numbers : whole numbers, integers, or both 5 whole number -1 integer 0 whole number 3 whole number -12 integer -11 integer 15 whole number 23 whole number 2 whole number -9 whole number

**physics**

a body moving at 40 m/s accelerates at the rate of 8m/s^2. what is the distance it transverses in 15 seconds?

**physics**

Calculate the force with which the body will fall on u. Also calculate, the kinetic energy, when body will be at height 6 ft. from ground. (take g=9.8m/s, mass of body=62 kg..)

**Science**

A student weighs 36.4kg suppose his entire body is made of electrons. How many electrons are present in his body. What would be charge in his body.

**Science**

An airplane lands with a velocity of 100m.s/1.The maximum rate at which it can slow down is 5,0m.s/2.What is the minimum time needed to come to rest, starting from when it first touches ground?

**Math**

Hi, this is a question I posted a couple of days ago and answers below.I am still really confused and unfortunately can't copy a picture into this. I thought it would be y-x but have no idea how to calculate that, but as the pistons move in towards each other, wouldn't the ...

**Calculations**

i`m being asked to find the focal length. I know that the distance from the lens to the object is 35 cm and that the distance from the image to the lens is 27 cm. I did the following: 1/27 + 1/35 = 1/f 62/945=1/f 15 15/62 = f Did I do this correctly?

**????Math Question????8th grade adv.math**

Algebra! How is the distance formula and the pythagorean theroem similar? The distance formula follows from the pythagorean theorem. You have to apply it twice: If (x1, y1, z1) are the coordinates of a point 1 and (x2, y2, z2) are the coordinates of point 2, then the distance ...

**math,algebra**

Can someone set this up in equations so i can solve them i would greatly appreciate it. THanks. Problem #3 The base of a ladder is 14 feet away from the wall. The top of the ladder is 17 feet from the floor. Find the length of the ladder to the nearest thousandth. Problem #4 A...

**Chemistry**

The density of whole blood is 1.05g/mL. A typical adult has about 5.5L of whole blood. What is the mass in pounds of this amount of whole blood?

**PHYSIC**

A BODY OF MASS 4OOKG WITH VELOCITY OF 5M/S COLLIDE WITH A STATIONARY BODY 500KG IF THE TWO BODY AFTER IMPACT CALCULATE THE MAGNITUDE OF THEIR COMMON VELOCITY.

**physics**

A particle moving with a constant acceleration describes in the last second of it's motion 9/25th of the whole distance.of it starts from rest ,how long is the particle is in motion and through what distance does it move if it describes 6cm in first second?

**physics**

A transport plane takes off from a level landing field with two gliders in tow, one behind the other. The mass of each glider is 700 , and the total resistance (air drag plus friction with the runway) on each may be assumed constant and equal to 2600 . The tension in the ...

**physics**

A transport plane takes off from a level landing field with two gliders in tow, one behind the other. The mass of each glider is 700n , and the total resistance (air drag plus friction with the runway) on each may be assumed constant and equal to 2600n . The tension in the ...

**math/geometry**

Two boxes must be wrapped. Both boxes are right rectangular prisms. The smaller box has a length of 12 inches. The larger box is similar to the first and has a length of 48 inches. Find the ratio of the amount of paper needed to wrap the large box to the amount of paper needed...

**MATHS HELP plz!!**

A parcel in the form of a rectangular block is held together by three pieces of tape as shown in the diagram . The parcel has square ends of side x cm and is y cm in length. Express the total length of tape in terms of x and y. Given tat the total length of tape is 450 cm, ...

**Precalc**

Can someone please help me? I don't know how to solve for time under 23 units. When I try I think I get the answer for above 23 units and when I try to subtract from the whole period my answer is wrong. The correct answer is 5.1337 hours. Fidel is measuring the light intensity...

**physics**

a concave mirror of diameter 40m is used with a 6cm tall object placed 20 cm from it. Where is the image? Can you check my solution Radius(R)=20cm Distance object(do)=20cm (2/R)=(1/do)+(1/di) (1/di)=(2/R)-(1/do) why do they give you the object height i don't think you need to ...

**Physics 1**

A body of mass 6kg moving at 8m/s collides with a stationary body of mass 10kg and sticks to it. Find the speed of the composite body immediately after the impact.

**A math question needs answering**

math terminology needed! how do you find the whole set in fractions? How do you work out (20x2)- x =10 -x

**physics**

1. what happens to a narrow light beam that enters parallel to the principal axis on a spherical concave mirror? 2. what happens to a narrow light beam that passes through the focal point of a concave mirror before being reflected?

**science**

The work of which scientist(s) helped to explain light's ability to propagate through a vacuum? A. Maxwell ==B. Davisson and Germer C. Fresnel, Fraunhofer, and Arago D. Newton An object that has a height of 0.4 meter is placed at a distance of 0.7 meter from a concave ...

**Physics ~ missed this lecture pls help**

An object is p = 34.3 cm in front of a concave mirror. Its real image height is 6 times larger than the object height. What is the location of the image? Answer in units of cm. What is the radius of curvature of the mirror? Answer in units of cm.

**Geometry**

The perimeter of a rectangle is 12 in. If the length and width are whole numbers, what are the least and greatest possible areas?

**physics**

Two loudspeakers are placed above and below each other and driven by the same source at a frequency of 3.70 102 Hz.An observer is in front of the speakers at point O, at the same distance from each speaker. What minimum vertical distance upward should the top speaker be moved ...

**Calculus**

Two electrical charges, one a positive charge A of magnitude a and the other a negative charge B of magnitude b, are loacted a distance c apart. A positively charged Particle P is situated on the line between A and B. Find where P should be put on so that the pull away from A ...

**math**

Vesna Vulovic survived the longest fall on record without a parachute when her plane exploded and she fell 6 miles and 551 yards. What is this distance in yards? What is this distance in meters? (round yards to nearest whole number, round meters to one decimal place)

**algebra**

D is the set of whole numbers less than 3. (1 point) D = {0,1,2,3,4,5}; D = {x is a whole number, x < 3} D = {0,1}; D = {x | x < 3} D = {0,1,2}; D = {x | x is a whole number, x < 3} D = {0,1,2,3,4,5,6,7}; D = {x < 3}

**math**

The distance d in miles that can be seen on the surface of the ocean is given by d = 1.6 h, where h is the height in feet above the surface. How high (to the nearest foot) would a platform have to be to see a distance of 19.5 miles?