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April 20, 2014

Search: gravity

Number of results: 5,321

Physics
(i) applied force and gravity (ii) gravity (iii) gravity (b)equal and opposite forces on the person applying the force and to the earth (gravity)
Tuesday, October 6, 2009 at 11:08pm by drwls

Physics 6A
you need to add units to the measurements. Ill assume the following: 330 kilograms, 3.8 meters, 23 degrees. mass*gravity*amount of gravity working= 330*9.8*cos(90-23)=force or work of gravity if the man fights gravity the entire time then his force is equal and opposite to ...
Friday, May 11, 2012 at 4:46pm by Jay

5th Grade Science
The force of attraction between the Earth and an object is called? A. Magnetism B. Mass C. Energy D. Gravity http://en.wikipedia.org/wiki/Gravity hey ken. someone told me it was gravity So you think it is gravity
Wednesday, April 18, 2007 at 5:14pm by Missy

Science - Check my answers please (6th grade)
earth and the moon are kept in their respective orbits due to the influence of ? a) inertia b) gravity c) both inertia and gravity d) neither inertia and gravity Is it c) both inertia and gravity?
Monday, April 7, 2014 at 11:41am by Helena

Physics
Gravity on the surface of the moon is only 1 6 as strong as gravity on the Earth. What is the mass of a 30 kg object on the Earth? The acceleration of gravity is 10 m/s
Monday, September 26, 2011 at 4:35pm by Anonymous

science
Gravity on the surface of the moon is only 1/6 as strong as gravity on the Earth. What is the weight of a 15 kg object on the Earth? The acceleration of gravity is 10 m/s 2
Wednesday, October 19, 2011 at 9:45pm by Anonymous

Physics
Gravity on the surface of the moon is only 1/6 as strong as gravity on the Earth. What is the weight of a 24 kg object on the Earth? The acceleration of gravity is 10m/s2 .
Tuesday, November 12, 2013 at 4:31pm by Breanna

physics
gravity on the surface of the moon is only 1/6 as strong as gravity on earth. what is the weight of a 37 kg object on the earth? The acceleration of gravity is 10m/s answer in units of N
Thursday, October 14, 2010 at 8:31pm by Anonymous

Physics
Gravity on the surface of the moon is only 1 6 as strong as gravity on the Earth. What is the weight of a 33 kg object on the Earth? The acceleration of gravity is 10m/s2 . Answer in units of N.
Thursday, November 4, 2010 at 9:01pm by RImon

Physics
Gravity on the surface of the moon is only 1 as strong as gravity on the Earth. 6 What is the weight of a 30 kg object on the Earth? The acceleration of gravity is 10 m/s2 . Answer in units of N.
Thursday, November 4, 2010 at 9:17pm by Dede

College Physics
Gravity on the surface of the moon is only 1/6 as strong as gravity on the Earth. What is the weight of a 14 kg object on the Earth? The acceleration of gravity is 10m/s2 . Answer in units of N.
Tuesday, March 2, 2010 at 12:59pm by Jennifer

college physics
Hmm. I thought gravity provided the centripetal force. The object wants to fly off at a tangent, but gravity keeps bending the trajectory. Is there another force besides gravity act work?
Monday, September 24, 2012 at 4:17pm by Anonymous

physics
A 4.36 × 10−5 kg raindrop falls vertically at constant speed under the influence of gravity and air resistance. After the drop has fallen 88.1 m, what is the work done by gravity? The acceleration of gravity is 9.8 m/s2 . Answer in units of J
Wednesday, October 26, 2011 at 5:47pm by lynn

science
earth and the moon are kept in their respective orbits due to the influence of ? a) inertia b) gravity c) both inertia and gravity d) neither inertia and gravity
Sunday, November 10, 2013 at 2:34pm by victoria

Physics
A 4.00kg crate is slowly lifted to a height of 1.50m. a.How much work is done by the lifting force? b.against gravity? C.by gravity? a, Work done is m*g*height b. the work done is against gravity. c. Because the box is lifted, the work done by gravity is negative (-mgh)
Saturday, September 16, 2006 at 7:02am by stefy

Science (planets/gravity)
What keeps all the planets the big ones and the small ones in orbit in our big solar system? A.The gravity from the sun. B.The gravity from the moon. C.The gravity between all the planets. D.The gravity from the beautiful our earth. What do all the planets orbit around? the ...
Wednesday, April 18, 2007 at 4:50pm by Hot stuff

Maths
A perfectly cylindrical container standing upright with a top and bottom(an oil drum or coke can for example) of area A has an empty mass of M and a height of H. It is filled with a liquid of uniform density(p)up to the height of h. When the container is full the centre of ...
Saturday, April 28, 2012 at 7:28am by Stephen

science
in the year 1971. astronaut alan shepard hit a golf ball whila on the surfase of the moon. it became the longest golf shot in history alan shepard was able to hit his recod golf shot because A.the moon dods not have any gravity B.THE GRAVITY OF THE MOON IS WEAKER THAN THE ...
Saturday, November 8, 2008 at 11:40pm by steven

science
the moon's gravity is about one-sixth the gravity on earth. mar's gravity is about one half the gravity on earth. make a bar graph that shows your weight (95 lbs) in newtons on earth, moon, and on mars. A newton is equal to about one quarter of a pound.
Thursday, May 12, 2011 at 7:48pm by nikki

physics
Standing straight, the center of gravity is approximately at the waist. When we lean forward, the top part of the body moves forward, the center of gravity is moved to a position in front of us. Gravity does the rest.
Sunday, November 23, 2008 at 2:04pm by DrBob222

physics 1
Hey, wait a minute. If there were no gravity it would have taken less time to stop. The total force up including gravity = change of momentum so there is no change to the force in part b due to gravity.
Tuesday, March 25, 2014 at 5:45pm by Damon

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 ...
Sunday, September 23, 2012 at 1:00pm by ray

physics
A) PE of gravity= m*g*h m=mass of object g=acceleration due to gravity h= distance mass= weight/gravity=4.383 PE=(4.383kg)(9.81 m/s^2)(1.7m) PE=73.095 J
Wednesday, February 8, 2012 at 9:13am by alexis

Physics
For which of the following situations can the equation F = mg not be used to calculate the force due to gravity? a) The pull of gravity on an apple on the surface of the Earth. b) The pull of gravity on an airplane flying at an altitude of 8 km above the surface of the Earth. ...
Monday, November 19, 2012 at 4:08pm by Kelvin

Physics
Force of gravity= gravitational constant x Mass1 x Mass2 /r^2 so if Mass1 increases by 4 and the other by 2 then it would increase by 8. Between 2 objects, Inverse Square Law: Gravity at A = gravity at B × (distance B / distance A)2 It would be (1/4)^2 or 1/16
Sunday, May 4, 2008 at 7:15pm by Doug

science
mass is the amount of material in something,weight is the effect of gravity on it, that is, how much pull gravity exerts on a mass. Forcegravity=mass*Gravity field strength on Earth, at the surface of Earth, the Gravity field strength is 9.8N/kg If you are interested to work ...
Wednesday, December 17, 2008 at 10:42pm by bobpursley

chemistry
actually, the specific gravity is the ratio of the density of oil to the density of water. Since the density of water is 1g/ml, the density of a substance is numerically the same as the specific gravity. However, specific gravity is a dimensionless number, while density has ...
Tuesday, February 19, 2013 at 2:34pm by Steve

space
Imagine that all gravity in the Universe was magically turned off (except the gravity of the Earth),and everything stopped moving.Earth's gravity will now begin to pull everything in the Universe slowly toward it. True or False?
Monday, December 1, 2008 at 5:33pm by eduy

physics
Gravity on the moon is only 1/6 as strong as gravity on earth. What is the weight of a 20 kg object on the moon and on earth? I have to find it in Newtons on earth and on the moon. WeightinNewtons= mass* gravity field on earth, the gravity field is 9.8N/kg, and on the moon, it...
Wednesday, September 20, 2006 at 7:50pm by Jennifer

physics
calculate the period and frequency of a 3.500 m long pendulum at the following locations: a) the north pole, where acceleration due to gravity is 9.832 m/s^2 b) chicago, where acceleration due to gravity is 9.803 m/s^2 c) jakarta, indonesia, where acceleration due to gravity ...
Tuesday, March 15, 2011 at 6:43pm by giselle

physics
Fg (the gravity force) and Fr (the raqdial force) are the same thing. You don't add them. Assuming the satellite is in a circular orbit, the gravity force is perpendicular to the direction of motion, which is tangent to the crcular orbit. The radial (gravity) force equals mass...
Monday, August 17, 2009 at 8:23pm by drwls

Physics
A 4.00kg crate is slowly lifted to a height of 1.50 m.(a)How much work is done by the lifting force? (b)against gravity? (c)by gravity? Force = mass*acceleration Here the acceleration is from gravity. Work=Force*distance.
Saturday, September 9, 2006 at 10:42pm by fluffy

Physics
One does not drift in space, gravity extends forever, and one is always under its influence. There is a certain velocity call escape velocity, which means that one can leave orbit and the force of gravity will not make it return, but the object is not "free" of gravity, it ...
Tuesday, January 18, 2011 at 9:09pm by bobpursley

physics
You are totally wrong in postulating the net force=force of gravity. Nuts. Force of gravity applies only to the gravitional field, and for a free falling object, Forcegravity=mass*a But what about other forces? Any unblanced force = mass*acceleartion, whether or not gravity is...
Saturday, September 12, 2009 at 7:22pm by bobpursley

phy
Is gravity still pulling it down? Acceleration is due to gravity.
Friday, September 17, 2010 at 8:29pm by bobpursley

Science
Can someone tell me if this is correct: How many forces act on an upwardly tossed coin when it gets to the top of its path? A. one the force due to gravity B. two gravity & the force in the coin itself C. three gravity the coins internal force & a turnaround force D. none of ...
Friday, September 21, 2012 at 8:20pm by Sue

science
because there is no gravity on the moon. if you jump in space, gravity doesn't pull you down like it does on earth.
Sunday, April 1, 2012 at 2:50pm by i♥zee

Physics
Astronauts who spend long periods in outer space could be adversely affected by weightlessness. One way to simulate gravity is to shape the spaceship like a cylindrical shell that rotates, with the astronauts walking on the inside surface. Explain how this simulates gravity. ...
Sunday, November 1, 2009 at 4:38pm by Sasha

physics
a 600N person picks up a 180 N suitcase positioned so that the suitcase's center of gravity is 20cm lateral to the location of the person's center of gravity before picking up the suitcase. if the person does not lean to compensate for the added load in any way, where is the ...
Tuesday, April 6, 2010 at 11:26pm by justine

SCIENCE
HOW DOES GRAVITY EFFECT ACCELERATION?? If a body is free to fall, gravity accelerates it at a constant rate.
Wednesday, September 6, 2006 at 4:47pm by KEYONNA

physics
I agree with Dr WLS, I ignored gravity, but gravity will force it in a parabolic path downward.
Friday, March 19, 2010 at 11:26am by bobpursley

physics
226N=13kg(acceleration-gravity) gravity=9.8m/s^2
Thursday, December 16, 2010 at 12:00am by TutorCat

Chemistry
2.70 g/mL is the correct value for density. The specific gravity is NOT 0.135 for two reasons: 1. specific gravity is the same as density if the water had a density of 1.00 g/mL. 2. specific gravity has no units.
Saturday, September 18, 2010 at 8:25pm by DrBob222

physics
The force of gravity is dependent on the masses involved, and the distance between them. See Newtons Law of Gravity.
Tuesday, May 13, 2008 at 9:36am by bobpursley

physics (geography bit)
Thanks for the help guys!!! I really appreciate it!!! ok I drew the thing as caerfully as I good h t t p : / / i m g 3 7 . i m a g e s h a c k . u s / i m g 3 7 / 7 8 0 7 / f i r s t d w s . j p g ok I redrew it chekc it Ok I followed the directions and made a line through the...
Monday, August 10, 2009 at 10:35pm by physics (geography bit)

physics (geometry bit)
Thanks for the help guys!!! I really appreciate it!!! ok I drew the thing as caerfully as I good h t t p : / / i m g 3 7 . i m a g e s h a c k . u s / i m g 3 7 / 7 8 0 7 / f i r s t d w s . j p g ok I redrew it chekc it Ok I followed the directions and made a line through the...
Tuesday, August 11, 2009 at 9:52am by physics (geometry bit)

physic
Gravity affects the period of a pendulum, but few practical clocks use pendulums anymore. Clocks than depend upon a spring-and-mass system, or electrical oscillations in a crystal (like many wristwatches today) will not be affected by gravity. There IS a general-theory-of-...
Friday, November 20, 2009 at 4:20am by drwls

math
A perfectly cylindrical container standing upright with a top and bottom (an oil drum or coke can for example) has an empty mass of M and a height of H. It is filled with a liquid of uniform density of variable mass m up to height h. When the container is full the centre of ...
Tuesday, May 17, 2011 at 3:10pm by Karl Haxell

physics
In the "mks" or SI system, the units of speed are meters per second. The units of the ACCELERATION of gravity (g) are meters per second-squared. I think that is what you meant by "gravity" The universal constant of gravity (G) has units of Newtons/(m^2*kg^2)
Monday, December 13, 2010 at 11:20pm by drwls

Physics
The object is not moved against gravity, so zero work was done on gravity. Work= force*distance*cosAngle where Angle is the angle between force and distance. In this case, the force of gravity and displacement is at 90 degrees. The cosine90 =0
Monday, January 16, 2012 at 10:11am by bobpursley

Engineering Maths
A perfectly cylindrical container standing upright with a top and bottom (an oil drum or coke can for example) has an empty mass of M and a height of H. It is filled with a liquid of uniform density of variable mass m up to height h. When the container is full the centre of ...
Tuesday, May 17, 2011 at 7:16am by Karl Haxell

physics
The force moving it down is gravity. So at constant speed, fricion must equal gravity. Forcegravity=mg*SinTheta
Wednesday, October 13, 2010 at 9:57am by bobpursley

astronomy/physics
Use Newton’s Law of Gravity to calculate the force of gravity between a 39 kg person and Earth.
Thursday, December 1, 2011 at 4:59pm by silvia

Physics- PLEASE HELP
A 10.0 kg cylinder rolls without slipping on a rough surface. At an instant when its center of gravity has a speed of 16.0 m/s, determine (a) the translational kinetic energy of its center of gravity.(b) the rotational kinetic energy about its center of gravity, and (c) its ...
Tuesday, November 6, 2012 at 3:44pm by Sarah

Physics
The balls initial momentum and gravity determine how long it is in the air. But the force of gravity is proportional to mass...Weight=mg intialmomenum-mg*deltaTime=0 deltatime in the air= initialmomentum/mg = mVi/mg= Vi/g So because the force of gravity is proportional to ...
Sunday, October 14, 2007 at 8:14pm by bobpursley

science. -_-
Okk so im not asking for answers, i just need somone to expplain this homework to me! I dont get it what so ever. So the homework tittle is Weight in space. So it has a whole discripition in wjich i will write dpwn for you. The paper says: Gravity is an invisible force that ...
Monday, September 23, 2013 at 4:35pm by Leslie:)

physics
A 4.36 × 10−5 kg raindrop falls vertically at constant speed under the influence of gravity and air resistance. After the drop has fallen 88.1 m, what is the work done by gravity? The acceleration of gravity is 9.8 m/s2 . Answer in units of J What is the work done by air...
Wednesday, October 26, 2011 at 5:48pm by lynn

phyics-universal gravity
A hypothetical planet has a radius 3.3 times that of Earth, but has the same mass. What is the acceleration due to gravity near its surface? (downward)
Tuesday, November 3, 2009 at 9:10pm by Anonymous

Physics
a) Yes, mass is constant regardless of location. b) Weight = Mass * Gravity Weight = 2.1kg * 9.8 m/s^2 Weight = 20.58N There are three, so 61.74 N is the answer. c) Gravity on the moon is about 1/6 that of the earth. It is 1.6 m/s^2. Weight = Mass * Gravity Weight = 2.1kg * 1....
Monday, November 12, 2007 at 6:52pm by Michael

shiloh
Its mass will be the same everywhere. Weight, however, is dependent on the force of gravity. On the moon, gravity is about 1/6 of Earth, so WeightMoon=.250kg*9.8Newton/kg * 1/6
Saturday, September 18, 2010 at 10:16am by bobpursley

physics
Assume your mass is 80 kg. The acceleration due to gravity is 9.8 m/s 2 . How much work against gravity do you do when you climb a flight of stairs 2.3 m high?
Friday, January 20, 2012 at 5:15pm by Anonymous

Physics (Geometry bit)
Ok there got it!!!!!!!!! ok FBD ok object and gravity acting on it resolved into components ++++++++++++++++++++++++++++++ ++++++++++++++++++,++++++++++/|\ +++++++++++++++++++++++++++++| +++++++++++++++++++++++++++++|Normal Force+of++++++++++++++++++++++|Force gravity...
Monday, August 10, 2009 at 11:49am by Physics (Geometry bit)

physics
7)In calculating the force of gravity between two objects, if the mass of one object increased by 4 and the other by 2, how many times would the force of gravity increase? I don't really understand but I got 6 times 8)In calculating the force of gravity between two objects, if...
Tuesday, April 1, 2008 at 9:59pm by Jon

chemistry
the force of gravity does not change in water, it is equal to mass*g. What changes in water is the upward bouyancy force, which against the force of gravity. But the force of gravity is still pulling it downward. If it is floating, the NET force is zero. If it sinks, the net ...
Saturday, August 13, 2011 at 11:44am by bobpursley

Physics
This statement is not correct: "initially went up when I hit it and continued going up until gravity acted upon it and brought it back to the ground. " The error is in saying "until gravity acted upon it". Gravity is always acting on the ball, at a constant rate, decreasing ...
Sunday, November 11, 2007 at 9:49am by drwls

science
Ever heard of an inverse squarelaw? Gravity is one of them, For the weight (and the acceleration of gravity) to fall to 1/4 of the value at the surface, the distance from the center of the Earth must double.
Tuesday, January 25, 2011 at 8:09pm by drwls

Physics
To create artificial gravity, the space station shown in the drawing is rotating at a rate of 0.600 rpm. The radii of the cylindrically shaped chambers have the ratio rA/rB = 3.00. Each chamber A simulates an acceleration due to gravity of 5.10 m/s2. Find values for (a) rA, (b...
Friday, October 7, 2011 at 9:39pm by Mary

science
Distinguish Between terminal velocity and free fall. Be able to describe defective gravity on motion and state acceleration rates of falling objects ( due to gravity)
Tuesday, January 24, 2012 at 11:32am by glenn

science
Which statement best describes Newton’s Law of Universal Gravitation? A.Large objects, like Earth and the Sun, attract other objects everywhere in the universe. B.Gravity is a kind of magnetic force between objects and Earth. C.Gravity is the result of the curvature of space ...
Monday, February 17, 2014 at 8:35pm by victoria

physics
Say it were a conservative force like gravity. As you went down from the top of a hill to the bottom, gravity would push down in your direction and you would get a positive amount of work done by gravity. When you go back up the hill, gravity is pushing down still but you are ...
Sunday, December 9, 2007 at 2:46pm by Damon

physics
Earth to Moon? On the Moons surface, the acceleration due to gravity (Earth and Moon) points toward the Moon. Otherwise, things would fall off the moon. Now, if anyone would be so unwise as to travel to Earth at constant velocity, they would use a lot of fuel, first to escape ...
Wednesday, September 17, 2008 at 12:50pm by bobpursley

Physics
You must mean frequency of revolution,m not evolution. I don't know what you man by "dimensional formula". I wull assume you mean just the "dimensions" or "units" that are used to measure each quantity. Each consist of some combination of mass, length and time. Sometimes ...
Sunday, April 5, 2009 at 9:25am by drwls

phyics
A person is standing on a level floor. His head, upper torso, arms, and hands together weigh 470 N and have a center of gravity that is 1.13 m above the floor. His upper legs weigh 108 N and have a center of gravity that is 0.755 m above the floor. Finally, his lower legs and ...
Friday, November 1, 2013 at 1:51pm by bobby

PHYICS
A person is standing on a level floor. His head, upper torso, arms, and hands together weigh 470 N and have a center of gravity that is 1.13 m above the floor. His upper legs weigh 108 N and have a center of gravity that is 0.755 m above the floor. Finally, his lower legs and ...
Sunday, November 10, 2013 at 10:58pm by Bobby

physics
min force = mg- mga min force = mass x gravity(1- gravity) min force =4125 x 9.8 (1- 0.04) min force= 388808 I made a mistake for the max for the correction is max force = mass x gravity( 1 + acceleration) Don't forget to write your answers in Newton (N)
Thursday, October 8, 2009 at 8:17pm by babygenise

Physics
Gravity on the moon is only 1/6 as strong as gravity on the Earth. What is the weight of a 55.3 kg dune buggy on the moon?
Thursday, May 3, 2012 at 9:19pm by Anonymous

Science
How much would 1kg weigh on the Moon if the pull of gravity there is about one-sixth of the pull of gravity on earth?
Monday, October 18, 2010 at 2:29am by Babiibun

Science
The force of gravity on Jupiter is much stronger than the force of gravity on Earth. Which of the following explains why this is true?
Tuesday, March 25, 2014 at 5:24pm by norna

physics
A string is hanging from the rearview mirror of you car and a ball is at the end of this string. Suppose that your drive around a circular track at fixed speed. Which list below gives all the forces that act on the ball? A) tension and the force of gravity b) tension force of ...
Saturday, November 21, 2009 at 6:26pm by jon

Physics
To create artificial gravity, the space station shown in the drawing is rotating at a rate of 1.60 rpm. The radii of the cylindrically shaped chambers have the ratio rA/rB = 3.00. Each chamber A simulates an acceleration due to gravity of 9.60 m/s2. Find values for (a) rA, (b...
Saturday, October 6, 2012 at 11:32pm by Redgy22

physcs (Geometry bit)
lol it didn't do anything ++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++/|\ ++++++++++++++++++++++++++++++| ++++++++++++++++++++++++++++++|Normal Force of++++++++++++++++++++++|Force gravity++++++++<--------------| xcomponent...
Monday, August 10, 2009 at 10:35am by physcs (Geometry bit)

physics- please help me!
Folks are stuck to the Earth by gravity. Gravity would remain the same, wouldn't it? Tangential speed at any latitude is given by... v=w*radiusearth*CosineLatitude where w is 2PI/24 rad/hr
Tuesday, December 9, 2008 at 5:54pm by bobpursley

Physics
WELL IN SIMPLY FORM GRAVITATIONAL PULLS EVERYTHING,THE INVIRONMENT BENEFIT HAPPENS WHEN GRAVITY IS PULLING DOWN THE SUN HEAT FOR THE CROPS,BESIDE THAT GRAVITY IS HELP EVERY OBJECT TO BE BALANCE IN THE EARTH
Monday, November 22, 2010 at 8:11am by DOCTOR MOKWANA

Astronomy
Suppose you weigh 105 . How much would you weigh on other planets in our solar system? Assume you can stand either on the surface or in an airplane in the planet's atmosphere. (Hint: Recall from Chapter Light and Matter that weight is mass times the acceleration of gravity. ...
Friday, March 30, 2012 at 2:37am by Alex-Johnson

physics
gravity on the surface of the moon is only 1/6 as strong as the gravity on earth. What is the weight of a 39kg on the earth?
Tuesday, February 19, 2008 at 2:05pm by Ayesha

physics
force = mass x gravity Force = density x volume x gravity = 1000 x 4 x 6 x 0.04 x 9.8 = 9408 N
Friday, October 27, 2006 at 12:18am by Anonymous

physics
force = mass x gravity Force = density x volume x gravity = 1000 x 4 x 6 x 0.04 x 9.8 = 9408 N
Friday, October 27, 2006 at 12:18am by Ya3kob

physics
What percentage of a floating iceberg’s volume is above water? The specific gravity of ice is 0.917 and the specific gravity of the surrounding seawater is 1.025.
Sunday, December 13, 2009 at 12:16am by James

Astronomy
Which of the terrestrial planets has the highest surface gravity? (Hint: if you look at ratios, you need not calculate every surface gravity value explicitly.)
Thursday, February 2, 2012 at 11:47pm by Jobeth

Energy
Without energy we can't do work cuz we can't apply ne force on an object. Gravity, itself a force, when, say, pulls a ball down to the gorund it actually does work. Now for tht force, where does it get the energy from or what type of energy does it have? If u have a book ...
Monday, June 20, 2005 at 10:14am by Mike

Physics
A hydrometer is an instrument for measuring the specific gravity of a liquid. For example, producers of maple syrup use the hydrometer to find how much sugar is in the collected sap. Markings along a stem are calibrated to indicate the specific gravity for the level at which ...
Wednesday, January 26, 2011 at 12:18pm by MJ

Math
The acceleration due to gravity is inversely proportional to the square of the distance from the centre of Earth. The acceleration due to gravity for a satellite orbiting 7000 km above the centre of Earth is 8.2 m/s^2. a) write a formula for this relationship. b) at what ...
Monday, June 1, 2009 at 6:45pm by Halle

phyics-universal gravity
Calculate the force of gravity on a spacecraft 6400 km (1 earth radii) above the Earth's surface if its mass is 1600 kg.
Tuesday, November 3, 2009 at 9:09pm by DJ

physics problem that i neeeed help with!
work done on gravity= mass*g*heightlifted. work done by gravity= -mgh
Thursday, April 15, 2010 at 4:45pm by bobpursley

chemistry
Weight is the force of gravity on an object. Is the force of gravity greater on the moon than Earth?
Sunday, September 19, 2010 at 12:11pm by bobpursley

physics
friction force: 12*.4= 4.8N gravity force: 5N gravity wins.
Sunday, January 5, 2014 at 8:46am by bobpursley

Physics
a skydiver is subject to two forces: gravity and air resistance. Falling vertically, she reaches a constant terminal speed at some time after jumping from the plane. Since she is moving at a constant velocity from that time until her chute opens, we conclude from the work ...
Thursday, March 24, 2011 at 6:47pm by Otto

physics 20
acceleration due to gravity must be factored in as the rocket is traveling upwards. since you have chosen up to be positive acceleration down must be negative, making gravity -9.8m/s the equation is still force=mass x acceleration accept the formula used to calculate ...
Tuesday, November 3, 2009 at 10:08pm by Jordan

physics
7. No work is done by gravity on a bowling ball resting or moving on a bowling alley because the force of gravity on the ball acts perpendicular to the surface. But on an incline, the force of gravity has a vector component parallel to the alley. Discuss the two ways this ...
Tuesday, April 2, 2013 at 8:22pm by Anonymous

Physics
paper: force pushing in from magnet, force of ref pushing back, gravity, and friction point up. Friction=gravity magnet= gravity down, friction up, horizonal force of attraction to referig.
Sunday, November 3, 2013 at 9:07pm by bobpursley

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