Why must the centre of the satellite orbit coincide with the centre of the Earth?

25,143 results, page 89

physics

explain the law of motion needed to slove this problem. On Planet Zorg, a 30kg barbell can be lifted by only exerting a force of 180N. what is the acceleration of gravity on Planet Zorg? Predict how the motion of this object would change on earth.

General Chemistry I

At noon on a clear day, sunlight reaches the earth's surface at Madison, Wisconsin, with an average power of approximately 4.00 kJ·s–1·m–2. If the sunlight consists of photons with an average wavelength of 510.0 nm, how many photons strike a 6.60 cm2 area per second?

Physics

The average person passes out at an acceleration of 7g (that is, seven times the gravitational acceleration on Earth). Suppose a car is designed to accelerate at this rate. How much time would be required for the car to accelerate from rest to 61.8 miles per hour?

Earth Science

Which of the following does NOT occur at a convergent boundary? A. The leading edges of both plates are bent downward. B. Oceanic crust is pushed down into the mantle. C. One continental plate moves into an oceanic plate. I think it's C

Pharmacist information

Pharmacists who are trained in the United States must earn a Pharm.D. degree from an accredited college or school of pharmacy. The Pharm.D. degree has replaced the Bachelor of Pharmacy degree, which is no longer being awarded. To be admitted to a Pharm.D. program, an applicant...

Earth/Space Science

Which of the following is responsible for absolute sea-level changes? A. formation and melting of ice sheets B. erosion of land surfaces by wind and water C. human activities along coastlines, such as development and grading D. movements of a tectonic plate, causing part of ...

Physics

An athlete starts at point and runs at a constant speed of 5.40 around a round track 250 in diameter Find the component of this runner's average velocity between points A and B. Find the component of this runner's average velocity between points A and B. Find the component of ...

science

Objects take up space and move through space different ways. Scientists use these differences to make models. For example, how a rubber band stretches helps you "see" the force acting on it. How could you use space relationships to model Earth and its moon?

physics

Suppose a simple pendulum is used to measure the acceleration due to gravity at various points on the Earth. If g varies by 0.151 % over the various locations where it is sampled, what is the corresponding variation in the period of the pendulum? Assume that the length of the ...

Physics

A) Gravity pulls an area of wet soil and rock downward in a landslide B) An ... Many people know that the weight of an object varies on different planets, but did ... If the Earth's gravitational force causes a falling 74 kg student to accelerate .... the acceleration of ...

physics

Unless otherwise stated, all objects are located near the Earth's surface, where = 9.80 . When a horizontal force of 340 is applied to a 68.0 box, the box slides on a level floor, opposed by a force of kinetic friction of 150 . Part A What is the magnitude of the acceleration ...

Physics

A helicopter is ascending vertically with a speed of 5.66m/s. At a height of 106m above the Earth, a package is dropped from the helicopter. How much time does it take the package the package to reach the ground? (Ignore air resistance) I would like to know what my givens are ...

chemistry - density and error (check)

Calculate the density of earth and the density error. i got the answer 5.57*10^3k +/- 9.60 *10^7kg/m is that the correct answer? please help

physics

1. A 50.0 Lb box is to be moved along a rough floor at a constant velocity. The coefficient of the kinetic friction is 0.300. A. What force must you exert if you push downward on the box? B. What force must you exert if you pull upward on the box? C. Which is the better way to...

PLEASE read over essay

I did this for chemistry. Are the examples and grammar correct? THANK YOU SO MUCH TO WHOEVER ACTUALLY TAKES THE TIME TO READ THIS I LOVE YOU OMG. Naming Chemical Compounds By: Bryce R The periodic table is made up of the most simplest and complex elements. These elements ...

Biology III

I'm having wayyy tooo much trouble with this simple assignment. Is there a lab that proves that the light reactions must occur prior to the dark reactions in photosynthesis? So far, I thought of the experiment in which one plant is placed in direct sunlight and the other is ...

lang art

1. Read the sentence from "Zoos: Joys or Jails?" What clue word is used to show contrast between the two points of view? "Although the circumstances and reasons for animals being in zoos vary, its concept has faults many don't notice during their visit with the animals." and...

English

Did I correct my triolet? My Mother My mother always wiped away all my tears God must have sent this woman from above When I cried she had a listening ear My mother always wiped away all my tears She took away all my worries and fears There was no doubt of my mother’s love ...

Physics

A helicopter is ascending vertically with a speed of 3.00 m/s. At a height of 70 m above the Earth, a package is dropped from a window. How much time (in seconds) does it take for the package to reach the ground? [Hint: The package's initial speed equals the helicopter's.]

phy

A helicopter is ascending vertically with a speed of 5.50 m/s. At a height of 155 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? [Hint: The package's initial speed equals the helicopter's.]

physics

A helicopter is ascending vertically with a speed of 5.20 m/s. At a height of 120 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? [Hint: v_0 for the package equals the speed of the helicopter.]

intro. to physics

a helicopter is ascending vertically with a speed of 5.20 m/s. at a height of 100 m above the Earth, a package is dropped from a window. how much time does it take for the package to reach the ground ? (hint: v0 for the package equals the speed of the helicopter). thank you !

physics

A helicopter is ascending vertically with a speed of 4.50 m/s. At a height of 195 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? [Hint: The package's initial speed equals the helicopter's.]

Physics

A helicopter is ascending vertically with a speed of 5.20 m/s. At a height of 125 m above the Earth, a package is dropped from a window. How much time does it takes the package to hit the ground? [Hint: The package's initial speed equals the helicopter's]

Physics

A helicopter is ascending vertically with a speed of 5.20 m/s. At a height of 125 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? [Hint: The package's initial speed equals the helicopter's.]

Physics HELP!!!!!!!!

For the normal force in Figure 5.21 to have the same magnitude at all points on the vertical track, the stunt driver must adjust the speed to be different at different points. Suppose, for example, that the track has a radius of 3.1 m and that the driver goes past point 1 at ...

VB

Before you can use a file in your program you must _____ it. i was thinking encrypt, but i just cant figure it out

physics

Find the the force the person must exert on the 14.5 kg lawn mower to accelerate it from rest to 1.5m/s in 2.5 seconds?

Math

could someone please tell me when you are preparing an income statment , to calculate groos margin. you must do what? thanks :)

Math

could someone please tell me when you are preparing an income statment , to calculate groos margin. you must do what? thanks :)

English

What is the analogy? glue:sticks::thorns? must start with scr, spr, str, or thr

English

What is the analogy? glue:sticks::thorns? must start with scr, spr, str, or thr

spelling

broom is to sweep as brush is to ? answer must star with scr, spr, str or thr

chem

How many moles of ethylene glycol must be dissolved in 500 g of water (Kf = 1.86) to lower the freezing point to -5.00 0C?

Chemistry

Since gases can be highly compressed, what must be true of the spaces between the molecules of the gas?

Physics

Does the de Broglie model assert that an electron must be moving in order to have wave properties?

Microbiology

Before mutations can affect a population they must be: a) permanent b) beneficial c) inheritable d) all of the above

Microbiology

Before mutations can affect a population they must be: a) permanent b) beneficial c) inheritable d) all of the above

math

If rstv=1 and stuv= 0 which of the following must be true? A. r<1 B. s<1 C. t<1/2 D. u=0 E. v=0 I don't know what steps I should use to solve this problem.

english

the answer has to be plural possessive and both words must rhyme!!! spectacles for a young lady

c++

The first character of a(n)__ must be a letter or an undeerscore(_). a.class b.identifier c.module d.program please explain

chemistry

What volume of 16 M nitric acid must be diluted with distilled water to prepare 500.0 mL of 0.50 M HNO3?

Gr.12 Data

How many "words" can be formed using all of the letters of the word SHRINKS if S must be directly in front of H

Grammar

I need a help to correct this sentence if it is right or not. Must live with a soccer ball since the age of 4?

Math

Place the numbers 1-10 in the cicrles below. Any number above two others must be their difference. O O O O O O O O O O HELP

chemistry

How many kilograms of water must be added to 75.5 grams of Calcium nitrate to form a 0.500 m solution?

h

The discoveries of the tombs and mummies must have been breathtaking for those lucky few that found them. "that" or "who"?

College Physics

To move 5.0 C of charge from one electrode to the other, a 12-V battery must do how much work? 60 J 5.0 C 12 J 12 V 60 W

physics

1) At what speed must a 75 kg basketball player leave the ground if he is to jump a vertical distance of 1.2 m? (ans: 4.8 m/s)

physics

How much work must be done to bring three electrons from a great distance apart to 5.5×10−10 m

chemistry

what mass of sodium acetate, NaCH3CO2, must be added to 1.0 L of 0.10 M acetic acid to give a solution with a pH of 4.50?

Chemistry

How many grams of NH4Cl must be added to 250ml of .2M NH4OH in order that the solution shall have a pH of 7.2?

Chemistry

What precautions must be taken when you introduce the mixture of compounds to be separated onto the absorbent column

Chemistry

What mass of methane must be combusted to produce 1.00 x 10^3 kJ of heat? could someone write the equation and the answer? Thank You.

8th grade

How do you diagram the following sentence: Who bravely dares must soemtimes risk a fall.

Math please help asap

Solve using elimination.......answers must be in ordered pair form 0.3x-0.2y=4 0.4x+0.5y=-55/17

chemistry

What formula do I use to figure how many mL of 6.00 M of HCl must be diluted to make 600 mL of a 0.500 M solution?

english

it's discrimination to mandate that police officers must conform to a certain height and weight. which fallacies is this?

Physics

A 3200kg helicopter must accelerate up at 1.0m/s^2. What minimum lift do the rotors need to produce? Thanks for answering!

Social Studies

What articles would you recommend for a project where I must connect politics in europe to the world?

chemistry

the product of a chemical reaction is phosphoric acid (h3po4). which elements must be in the reactants and how many atoms of each

physics

How far must the point charges = 7.20 and = -25.0 be separated for the electric potential energy of the system to be -130 ?

physics

In what direction and with what speep must he push away his pack in order to return to his vehicle in 30s?

physics

How fast (in ) must a centrifuge rotate if a particle 8.00 from the axis of rotation is to experience an acceleration of 117000 's?

Math

List the elements {a1, a2, a3...} where an is defined as a1= 1, an=na(n-1) n E N, 1 <n <7 i know that a1=1 therefore a must equal 1 right. but what steps do i take to solve this?

chemistry

How many grams of hydrogen peroxide must decompose to give 255 mi of oxygen gas at stp?

chemistry

How many grams of hydrogen peroxide must decompose to give 255 mi of oxygen gas at stp?

Chemistry

How many Kilograms of water must be added to 5.0 grams of oxalic acid (H2C2O4) to prepare a 0.40 Molality?

chemistry dilutions

you have 47 mL of a 2 M stock solution that must be diluted to .5 M how much water should you add

Active physics

How much hear must be added to 1.5kg of water at -25degC to raise it up to 119degC?

physics

How much heat must be absorbed by a 500 g pot of water in order to raise the temperature from 20„aC to 30„aC?

physics help

How much energy must be removed from a 200g block of ice to cool it from 0C to -30C? What is the equation for this?

UCP

Identify the accommodations that providers must make to assure effective learning in an e-health environment.

english

What is the complete subject of A person must have very good eyesight to work with beads.

chemistry

How much water must be added to 20liter of 12molar base solution to makt it 8molar?

chemistry

How much water must be added to 20liter of 12molar base solution to make it 8molar?

Biology

Using the fundamentals of thermodynamics, explain why we must continue to eat in order to maintain homeostasis?

info interacy

To avoid plagiarism in your written research paper, you must provide a citation for which of the following?

Chemistry

A cyclist rides at an average speed of 30 .If she wants to bike 189 , how long (in hours) must she ride?

chem

calculate the amount of water that must be added to 6.5 grams of urea to produce a 22-2% by mass solution?

chemistry

Why must thiosulfate solution be standarized every couple of days? Please explain with an equation. Thanks.

physics

An object that has kinetic energy must have which of the following?A) momentumB)acceleration c all of these d none of these

geometry

by what factor must the radius of a circle be multiplied to make the area of the cicle 3 times as large?

Algebra 2

Find all numbers that must be excluded from the domain of the given rational expression. 1) x^2+4x/x^2-16 2) 6x^3y-6xy/x^3+5x^2+4x 3) 4-x^2/x^2+x-6

Chemistry

What mass of NaOH(s) must be added to 300 mL of HCl 0.25 M in order to completely neutralize this acid?

Physics

How many Joules of thermal energy must be added to 5 kg of water at 20 C to bring it to the boiling point (at 100 C)?

Chemistry

What mass of KClO3 must be decomposed to KCl and O2 to give 638ml O2 at 18 degrees Celcius and 752torr?

thermochemistry

what is the formula to find the mass of propane that must be combusted to produce 188.3kj of energy?

organic chemisrtry

What must a molecule possess to be able to absorb radiation in the infra-red region?

chemistry

What mass of sucrose must be taken for solution weight of 200 g, which is equal to molality 0.05 mol / kg?

chemstry

What mass of sucrose must be taken for solution weight of 200 g, which is equal to molality 0.05 mol / kg?

science

How much sugar must be added to 50g of water to make a saturated solution at 0 degrees?!

Chem 2

What mass of water must be used to make a 1.35m solution that contains 8.20 moles NaOH?

Math

Use the method of elimination to solve the following system of equations. You must check your answer: 1)x/2 + y/5 = 1/2 2) 3x - y = -8

chemistry

You have 37.0 mL of a 3.00 M stock solution that must be diluted to 0.500 M. How much water should you add?

General Chemistry

How many milliliters of 0.5M NaOH must be added to 200 mL of 0.1M NaH2PO4 to make a buffer solution with a pH of 6.9?

Chemistry

you have 57.0 mL of a 2.00 M stock solution that must be diluted to 0.500 M. how much water should you add?

Chemistry

you have 57.0 mL of a 2.00 M stock solution that must be diluted to 0.500 M. how much water should you add?

Chemistry

you have 57.0 mL of a 2.00 M stock solution that must be diluted to 0.500 M. how much water should you add?

Chemistry

you have 57.0 mL of a 2.00 M stock solution that must be diluted to 0.500 M. how much water should you add?

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