Number of results: 23,461
Physics
A 56 kg rock climber is climbing a "chimney" between two rock slabs as shown in the figure. The static coefficient of friction between her shoes and the rock is 1.02; between her back and the rock it is 0.70. She has reduced her push against the rock until her back ...
Wednesday, February 10, 2010 at 8:30pm by Web
college physics
A 90 kg rock climber is stationary off the side of an overhanging cliff hanging onto her climbing rope. Another rope is tied to her foot and is attached at the other end to her 30 kg rock-climbing dog, also hanging out 2 m below her. Tied to the dog’s foot is yet another ...
Saturday, November 3, 2012 at 4:17pm by kevin
Physics
A rock climber of mass 55 kg is hanging suspended from a rope tied to another climber of mass 65 kg on a horizontal cliff ledge. If the coefficient of kinetic friction between the climber on the ledge and the ledge is 0.45, what is the net acceleration of the climber on the ...
Sunday, July 15, 2012 at 3:15pm by bob
physics
A rock climber climbs a 15 m vertical rock wall while wearing a 5.3 kg backpack. How much work does the climber do on the backpack?
Monday, October 24, 2011 at 10:57am by Anonymous
physics
A rock climber climbs a 15 m vertical rock wall while wearing a 5.3 kg backpack. How much work does the climber do on the backpack?
Monday, October 24, 2011 at 2:22am by Anonymous
physics
Stemming a chimney. A rock climber of mass 71 kg wants to make her way up the crack between two rocks as shown in the figure below. The coefficient of friction between her shoes and the rock surface is ìS = 0.90. What is smallest normal force that she can apply to both ...
Thursday, October 6, 2011 at 5:06pm by Mel
physics
A 85 kg rock climber first climbs 50 m up to the top of a quarry, then descends 75 m from the top to the bottom of the quarry. If the initial height is the reference level, find the potential energy of the system (the climber plus Earth) when the climber is at the top. Find ...
Wednesday, May 11, 2011 at 2:43pm by Merlin
physics
With the forces in equilibrium if a stationary climber is using a rope which is 60 degrees to the vertical, the rock face is at 30 degrees to the vertical, and the weight of the climber in cluding equipment is 850N. What is the tension on the rope? What is the force exerted on...
Monday, April 18, 2011 at 4:27pm by Declan
Physics
A 80 kg climber is standing horizontally on a perfectly vertical cliff face. The climber is 1.8 m tall and is attached by a 2 m long rope fastened around their middle to a point on the cliff above them. What is the normal force the cliff face exerts on the climber in Newtons? ...
Monday, March 18, 2013 at 3:13am by Stranger
physics
consider the 52 kg climber. find the tension in the rope and the force that the climber must exert with her feet on the vertical rock face to remain stationary. assume that the force is exerted parallel to her legs. also, assume negligible force exerted by her arms. what is ...
Wednesday, June 5, 2013 at 6:28pm by kim
Physics
A small first aid kit is dropped by a rock climber who is descending steadily at 1.5 m/s. A.)After 3.1s, how far is the kit below the climber?
Monday, February 14, 2011 at 6:08pm by Shannon
Physics
For safety in climbing, a mountaineer uses a nylon rope that is 55 m long and 0.9 cm in diameter. When supporting a 88-kg climber, the rope elongates 1.4 m. Find its Young's modulus.
Thursday, April 4, 2013 at 3:48pm by Dan
physics
For safety in climbing, a mountaineer uses a nylon rope that is 65 m long and 1.1 cm in diameter. When supporting a 94-kg climber, the rope elongates 1.4 m. Find its Young's modulus.
Wednesday, March 28, 2012 at 9:11pm by greg
physics
For safety in climbing, a mountaineer uses a nylon rope that is 65 m long and 0.9 cm in diameter. When supporting a 92-kg climber, the rope elongates 2.0 m. Find its Young's modulus.
Monday, November 14, 2011 at 12:51pm by jim
Chem
If a rock climber accidentally drops a 56-gram piton from a height of 375 meters, what would its speed be before striking the ground? Ignore the effects of air resistance.
Tuesday, September 11, 2012 at 8:17pm by Bobby
physics
A gold prospector finds a solid rock that is composed solely of quartz and gold. The mass and volume of the rock are, respectively, 13.3 kg and 3.56 × 10-3 m3. The density of gold is 19 300 kg/m3, and the density of quartz is 2660 kg/m3. Find the mass of the gold in the ...
Sunday, March 10, 2013 at 9:08pm by chel
physics
a 70 kg rope climber starts from rest, moves with constant acceleration, and climbs 9 meters up a rope having a maximum strength of 840 N. What is the greatest possible speed she can have afte climbing 9m?
Tuesday, November 27, 2007 at 8:39pm by bex
Physics
For safety in climbing, a mountaineer uses a nylon rope that is 55 m long and 0.9 cm in diameter. When supporting a 82-kg climber, the rope elongates 2.0 m. Find its Young's modulus. I got 34737.433 but that is not the right answer please help!
Saturday, November 10, 2012 at 11:30pm by Kat
physics
32 kg child practicing rock climbing, she feel but the rope hung on with a tension of 253N. find acceleration??
Tuesday, April 16, 2013 at 8:47pm by Josh
physics
A small first aid kit is dropped by a rock climber who is descending at a constant velocity of - 1.3m/s. a) Sketch the velocity vs. time graph for both the climber and her first aid kit and paste your sketch in the space below. b) After 1.5 seconds, what is the velocity of ...
Saturday, October 23, 2010 at 8:55pm by grace
physics
a climber with a weight of 441 N is held by a belay rope connected to her climbing harness and belay device; the force of the rope on her has a line of action through her center of mass. The indicated angles are θ = 45˚ and φ = 25˚. If her ...
Thursday, April 7, 2011 at 11:39pm by john
Physics
A small first aid kit is dropped by a rock climber who is descending steadily at 1.3 m/s. After 2.5 s, what is the velocity of the first-aid kit, and how far is the kit below the climber? This problem seems like it should be easy, but I'm not sure which equation to use. I...
Sunday, September 30, 2007 at 2:25pm by Stephanie
physics
A rock climber throws a small first aid kit to another climber who is higher up the mountain. The initial velocity of the kit is 23 m/s at an angle of 69° above the horizontal. At the instant when the kit is caught, it is traveling horizontally, so its vertical speed is ...
Monday, October 11, 2010 at 5:34pm by Sarah
physics
A rock climber throws a small first aid kit to another climber who is higher up the mountain. The initial velocity of the kit is 21 m/s at an angle of 58° above the horizontal. At the instant when the kit is caught, it is traveling horizontally, so its vertical speed is ...
Monday, September 20, 2010 at 9:41pm by Emily
physics
A rock climber throws a small first aid kit to another climber who is higher up the mountain. The initial velocity of the kit is 17 m/s at an angle of 50° above the horizontal. At the instant when the kit is caught, it is traveling horizontally, so its vertical speed is ...
Sunday, September 5, 2010 at 6:26pm by demi
Physics
The force of gravity on a 2.0 kg rock is twice as great as on a 1 kg rock. Why doesnt the heavier rock fall faster?
Wednesday, July 13, 2011 at 1:25am by Capreeca
physics
a climber with a weight of 590 N is held by a belay rope connected to her climbing harness and belay device; the force of the rope on her has a line of action through her center of mass. The indicated angles are θ = 35˚ and φ = 35˚. If her ...
Monday, April 1, 2013 at 8:05am by ANS
physics
A small first-aid kit is dropped by a rock climber who is descending steadily at 1.6 m/s. After 1.6 s, what is the velocity of the first-aid kit? The acceleration of gravity is 9.81 m/s2. 2)How far is the kit below the climber after the 1.6 s?
Friday, November 12, 2010 at 8:59pm by john
physics
In Fig. 12-39, a climber with a weight of 441 N is held by a belay rope connected to her climbing harness and belay device; the force of the rope on her has a line of action through her center of mass. The indicated angles are θ = 45˚ and φ = 25&...
Friday, April 8, 2011 at 3:38am by john
physics
a mountain climber jumps a 3.0 m wide crevasse by leaping horizontally with a speed of 8.0 m/s. (a) if the climber's direction of motion on landing is -45 degrees, what is the height the difference between the two sides of the crevasse? (b) where does the climber land?
Tuesday, December 13, 2011 at 4:57pm by taylor
trig
Is the 56.4º at the base of the rock or at the new position of the geologist? I took it to be at the new position of the geologist. The line from the base of the rock to the geologist's original position is common to two triangles. I let the height of the rock be h m ...
Wednesday, April 16, 2008 at 10:56pm by Reiny
Physics
A small first-aid kit is dropped by a rock climber who is descending steadily at 1.9 m/s. After 2.5 s, what is the velocity of the first-aid kit, and how far is the kit below the climber? My question is, how can you determine how fast/far the kit is going???? If the kit is ...
Sunday, September 17, 2006 at 10:53pm by Help again?? Becca
PHYSICS!!!
A climber with a mass of 75 kg is attached to a 6.5 m rope with a cross sectional area of 3.5×10−4 m2. When the climber hangs from the rope, it stretches 3.4×10−3 m. What is the Young's modulus of the rope? Please help me :)
Saturday, June 9, 2012 at 3:33pm by Kaelyn
phys
A rock stuck in the tread of a 56.0--diameter bicycle wheel has a tangential speed of 3.10 . When the brakes are applied, the rock's tangential deceleration is 1.30m/s2 What is the magnitudes of the rock's angular velocity at = 1.70 ?
Monday, May 28, 2012 at 11:17pm by keren
physical science
A 100 kg ball of lead rests next to a 10 kg rock. Which statement below is true? a. the lead ball and the rock have equal amounts of inertia b. if the lead ball and the rock fell from the same height in a vacuum, the rock would hit the ground first because it is less massive. ...
Monday, October 25, 2010 at 2:43pm by Trang
physics
a 100 kg boulder is placed under the surface of water. its volume is 0.5 x 10^5 cm^3. what is the weight of the rock while under water; compare that to the weight of the rock in air (sitting on the ground) i just found the weight of the rock in air by multiplying 100 kg by 9.8...
Tuesday, March 16, 2010 at 7:40pm by john
Univ Phys
In a mountain-climbing technique called the "Tyrolean traverse," a rope is anchored on both ends (to rocks or strong trees) across a deep chasm, and then a climber traverses the rope while attached by a sling as in the figure . This technique generates tremendous ...
Monday, November 9, 2009 at 3:24pm by Taylor
Uni Physics
A 67 kg astronaut (Jeff), an 88 kg astronaut (Brett) and a 17 kg rock are tied together by a light rope during a space walk. The distance between Jeff and the rock is 5.0 m, the distance between Brett and the rock is 2.0 m. Find the position of the centre of mass of the system...
Tuesday, October 2, 2012 at 12:00am by David Gia
physics
. A rescue helicopter lifts a stretcher case off a hillside. The injured climber and stretcher have a mass of 180 kg and the rope supporting them has a breaking force of 2000 N. Calculate: (a) the tension in the rope when the stretcher and climber are suspended from the rope ...
Monday, November 21, 2011 at 12:21pm by as01
physics
A 100 kg ball of lead rests next to a 10 kg rock. Which statement below is true? a. the lead ball and the rock have equal amounts of inertia b. if the lead ball and the rock fell from the same height in a vacuum, the rock would hit the ground first because it is less massive c...
Saturday, January 8, 2011 at 11:52pm by mimii
physical science
A kg ball of lead rests next to a 10 kg rock. which statement below is true:a:the lead ball and rock have the same amount of inertia,b:if the lead ball and the rock fell from the same height in a vacuum, the rock would hit the ground first because it is less massive,c: on the ...
Saturday, January 29, 2011 at 2:13pm by ellen
physics
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 94.0 kg. The mass of the rock is 0.350 kg. Initially the wagon is rolling forward at a speed of 0.520 m/s. ...
Saturday, October 22, 2011 at 1:57pm by Sam
Physics 11th grade 2
1) A 20 kg rock is on the edge of a 100 m cliff. a. What potential energy does the rock possess relative to the base of the cliff? b. The rock falls from the cliff. What is the kinetic energy just before it strikes the ground? c. What speed does the rock have as it strikes the...
Monday, March 11, 2013 at 5:13pm by Isis
Physics
A 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. Find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earth’s velocity. Earth’s mass is 6.0 × 1024 kg. Show all your ...
Friday, January 27, 2012 at 6:11pm by Pat
Physics
Consider the motion of the rock in the figure below. What is the minimum speed the rock can have without the string becoming "slack"? (The rock is traveling in vertical circle. Assume that m = 1.6 kg and r = 0.48 m.)
Friday, June 22, 2012 at 5:22pm by Sierra
Physics
A gold prospector finds a solid rock that is composed solely of quartz and gold. The mass and volume of the rock are, respectively, 14.8 kg and 1.89 × 10-3 m3. The density of gold is 19 300 kg/m3, and the density of quartz is 2660 kg/m3. Find the mass of the gold in the ...
Monday, November 22, 2010 at 3:33pm by Mike
physics
a rock climber weights 550N and is carrying a backpack that weighs 50N. how much total work has been done after she climbs 12m
Tuesday, January 24, 2012 at 6:44pm by Anonymous
physics
A geologist finds that a Moon rock whose mass is 9.97 kg has an apparent mass of 6.40 kg when submerged in water. What is the density of the rock?
Tuesday, January 24, 2012 at 5:29pm by B
physics
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 95 kg. The mass of the rock is 0.34 kg. Initially the wagon is rolling forward at a speed of 0.50 m/s. Then ...
Friday, November 4, 2011 at 12:43pm by Meagan
Physics
A 1.1 kg lizard lies on a flat rock tilted. A person decides to tilt the rock hoping that the lizard falls off. The rock is tilted at an angle of 15 degrees with respect to the horizontal. The coefficient between the rock and the lizard is .16. What is the acceleration of the ...
Monday, November 19, 2012 at 7:34pm by Elle
language arts
Some visitors to the park enjoy rock climbing others prefer kayaking.
Saturday, September 17, 2011 at 6:22am by melissa
Earth Science
1. In the classroom during a visual inspection of a rock, a student recorded four statements about the rock. Which statement about the rock is an observation? (1)The rock formed deep in Earth’s interior. (2)The rock cooled very rapidly. (3)The rock dates from...
Wednesday, June 18, 2008 at 12:54pm by Anonymous
Physics
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 97.0 kg. The mass of the rock is 0.320 kg. Initially the wagon is rolling forward at a speed of 0.540 m/s. ...
Sunday, October 14, 2012 at 4:27pm by Sara
Physics
Explosives are used to blow a rock apart. The explosion blows the rock into three fragments. Two fragments go off at a 76 degree angle to each other--a 6.2 kg piece at 26.7 m/s and a 5.5 kg piece at 23.3 m/s. Calculate the speed of the third piece, if it has a mass of 3.2 kg.
Sunday, January 16, 2011 at 12:23am by Joan
College Physics
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 96.5 kg. The mass of the rock is 0.250 kg. Initially the wagon is rolling forward at a speed of 0.460 m/s. ...
Thursday, October 14, 2010 at 1:28pm by Jordan
physics
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 96.5 kg. The mass of the rock is 0.250 kg. Initially the wagon is rolling forward at a speed of 0.460 m/s. ...
Friday, October 15, 2010 at 6:58pm by Sarah
Science
find the density of the two rocks. The jagged rock has a mass of 56 grams. this rock therefore has a density of ?
Thursday, September 22, 2011 at 6:51pm by Anonymous
physics
The total energy of a 2.00 kg falling rock is 5000 J. If its potential energy is 1975 J, the kinetic energy of the rock is ____ J. The speed of the rock is ___ m/s
Monday, March 28, 2011 at 12:03pm by courtney
Physics
A rock climber part way up a cliff face drops a piton and it falls for 2.0 s before hitting the ground. How high up is he?
Tuesday, November 2, 2010 at 12:10am by Pauline
College Physics
Part A) A 2.2 kg rock is released from rest at the surface of a pond 1.8 m deep. As the rock falls, a constant upward force of 5.0 N is exerted on it by water resistance. Let y=0 be at the bottom of the pond. Calculate the nonconservative work, Wnc , done by water resistance ...
Wednesday, March 3, 2010 at 9:49pm by Kyle
earth
#40 which type of rock is a result of a rock changing by heat and pressure? a. metamorphic rock b. igneous rock c. sedimentary rock d. metal ores
Sunday, January 13, 2013 at 3:49pm by ?
Physics
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 92.5 kg. The mass of the rock is 0.310 kg. Initially the wagon is rolling forward at a speed of 0.550 m/s. ...
Monday, October 22, 2012 at 8:40pm by Elizabeth
physics
c) 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 the speed of 29 m/s. Assuming that the air resistance can be ignored, find i. the initial speed of the rock (5 marks) ii. the ...
Thursday, September 6, 2012 at 12:02pm by charley
physics
Two rock climbers, Bill and Karen, use safety ropes of similar length. Karen's rope is more elastic, called a dynamic rope by climbers. Bill has a static rope, not recommended for safety purposes in pro climbing. Karen falls freely about 1.7 m and then the rope stops her ...
Saturday, December 12, 2009 at 6:54pm by k
chemistry/physics
If a rock climber accidentally drops a 69.0 g piton from a height of 305 meters, what would its speed be just before striking the ground? Ignore the effects of air resistance.
Wednesday, February 6, 2013 at 12:10am by Brianna
Physics
a small rock with mass 0.20 kg is released from rest at point A which is at the top edge of a large, hemispherical bowl with radius R = .5m. assume that the size of the rock is small compared to R, so that the rock can be treated as a particle, and assume that the rock slides ...
Tuesday, October 23, 2012 at 3:24pm by Frankie
calculus 1
estimates, using values of n from 5 to 50: 5: 56.0341 10: 56.0401 15: 56.0434 20: 56.0456 25: 56.0471 30: 56.0483 35: 56.0491 40: 56.0498 45: 56.0503 50: 56.0507 wolframalpha.com calculates 56.0528 just type in arc length 56cos(x), x = 0 .. pi/2
Monday, August 27, 2012 at 3:49pm by Steve
Physics
A rock of mass 0.086 kg is thrown upward with an initial speed of 13 m/s. Find the work done by gravity on the rock from the time it leaves the thrower's hand until it reaches the highest point on its trajectory. Hint: You do not have to calculate the rock's maximum ...
Wednesday, July 11, 2012 at 11:49am by Sierra
physics
The 49 kg climber is supported in the "chimney" by the friction forces exerted on his shoes and back. The climber has reduced push to verge of slip. The static coefficients of friction between his shoes and the wall, and between his back and the wall, are 1.2 and 0.8...
Monday, October 26, 2009 at 9:55am by K
physics
1. V = 30.5 * 61 * 30.5 = 56,745cm^3. 2. m = 56,745cm^3 * 1g/cm^3 = 56,745g. 3. m = 56,745g / 1000g/kg = 56.745kg. 4. V = 1 * 2 * 1 = 2ft^3. 2ft^3 * 62.4lb/ft^3 = 124.8 Lbs.
Tuesday, September 13, 2011 at 9:19am by Henry
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 28 m/s. (a) Assuming that air resistance can be ignored, find the initial speed of the rock. (b) Find the greatest ...
Thursday, November 29, 2012 at 8:31pm by jorge
chem, help please
A 0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. The velocity of the rock is 4.50 m/s. What is the centripetal force acting on the rock? how do i find centripetal force??
Friday, November 19, 2010 at 11:17am by Jon
College Physics
A 2.2 kg rock is released from rest at the surface of a pond 1.8 m deep. As the rock falls, a constant upward force of 5.0 N is exerted on it by water resistance. Let y=0 be at the bottom of the pond. Calculate the nonconservative work, Wnc , done by water resistance on the ...
Wednesday, March 3, 2010 at 12:59am by Kyle
Physics
A rock of mass m = 1.8 kg is tied to a string of length L = 2.4 m and is twirled in a vertical circle as shown in the figure below. The speed v of the rock is constant; that is, it is the same at the top and the bottom of the circle. If the tension in the string is zero when ...
Wednesday, October 26, 2011 at 11:53pm by Freud
physics..help PLEASE!
A 0.26 kg rock is thrown vertically upward from the top of a cliff that is 35 m high. When it hits the ground at the base of the cliff the rock has a speed of 28 m/s. (a) Assuming that air resistance can be ignored, find the initial speed of the rock. (b) Find the greatest ...
Wednesday, October 8, 2008 at 12:42am by kelsey
Physics, Please Help
A homeowner is trying to move a stubborn rock from his yard which has a mass of 1025 kg. By using a lever arm (a piece of wooden board) and a fulcrum (or pivot point) the homeowner will have a better chance of moving the rock. The homeowner places the fulcrum 24.4 cm from the ...
Sunday, November 25, 2012 at 7:02pm by Mike
physics
A 17-kg rock is on the edge of a 103-m cliff. (a) What potential energy does the rock possess relative to the base of the cliff? 1 . J (b) The rock falls from the cliff. What is its kinetic energy just before it strikes the ground? 2 . J (c) What speed does the rock have as it...
Thursday, May 10, 2012 at 11:51am by Amelia
Earth Science
1.Which statement made by a student after examining a rock specimen is an inference? (1)The rock is of igneous origin. (2)The rock has rounded edges. (3)The rock is light-colored. (4)The rock contains large crystals. Is it (1)?
Wednesday, June 18, 2008 at 1:02pm by Anonymous
physical science
A force of 1 N is exerted on a 10-kg rock. What is the acceleration of the rock?
Thursday, December 15, 2011 at 8:47pm by Fonda
physics
A 17-kg rock is on the edge of a 103-m cliff. (a) What potential energy does the rock possess relative to the base of the cliff? . J (b) The rock falls from the cliff. What is its kinetic energy just before it strikes the ground? J
Friday, May 11, 2012 at 7:53pm by Brianna
physics- please help!
1 lb =0.454 kg 125 lb= 56.7 kg (max mass) mg=56.7•9.8 =555.66 N
Friday, July 20, 2012 at 4:04pm by Elena
math
A rock-climbing gym charges non-members $16.00 per day to sue the gym and $8.00 per day for equipment rental. Members pay a yearly fee of $450.00 fro unlimited climbing and $6.00 per day for equipment rental. Write and solve equation to find how many times you must use the ...
Tuesday, February 3, 2009 at 9:53am by Amber Olander
physics
A 40 kg rock is accelerating down a hill at 3 m/s2. What is the net force exerted on the rock
Wednesday, January 19, 2011 at 6:49pm by Anonymous
physics
A rock is dropped. How fast will the 5.0 kg rock be traveling in 4.0s if a 5.o N force of air resistance acts on it?
Thursday, December 16, 2010 at 9:04pm by Nate
physics
The average density of the rock is 2.00*10^3 kg/m^3, which is twice that of water. That is because the buoyancy force in water equals half the weight in air. The solid part (with mass 5.0 kg/m^3) needs to occupy only 40% of the volume in order for the rock to have a total mass...
Tuesday, December 6, 2011 at 5:35am by drwls
Math grade7
Miguel and Yoshi went rock climbing. Miguel climbed up 15m, back down 4 m, climbed 6 m, slid back 17 m, climbed up 22 m, rested and climbed 14 m more. Yoshi climbed 12 m, slid back 4 m, rested, climbed up 33 m and slid back 7 m. They are now together at the 40 m mark. At what ...
Monday, January 17, 2011 at 7:49pm by pretty
Physics
A 4.2 kg rock is initially at rest at the top of a cliff. Assuming the rock falls into the sea at the foot of the cliff and that its kinetic energy is transferred entirely to the water, how high is the cliff if the temperature of 1.5 kg of water is raised 0.10°C?
Sunday, January 13, 2013 at 6:51pm by I'm going to die please help
Physics
additional volume of water displaced = .0234 * pi * .0425^2 = 1.33*10^-4 m^3 density of water = 1000 kg/m^3 approx so mass of rock = 1.33*10^-1 Kg weight of rock = m g = 9.81*.133 = 1.3 Newtons
Sunday, June 17, 2012 at 6:13pm by Damon
Tulane Physics
a rock is thrown unward off a cliff at a 45 degree angle. THe rock falls back to the elevation it was thrown from after 3.56 seconds. It hits the water 5.31 seconds after it was thrown. How high is the cliff? what is the horizontal distance from the cliff to the point in the ...
Wednesday, September 14, 2011 at 6:45pm by laura
Physics
A man throws a rock of mass m = 0.310 kg straight up into the air. In this process, his arm does a total amount of work Wnet = 105 J on the rock. Calculate the maximum distance, h, above the man's throwing hand that the rock will travel. Neglect air resistance.
Sunday, May 27, 2012 at 9:05pm by James
math
Oops. I goofed. Sorry. My fingers got ahead of my brain. I think the problem means that 8% of a number is 56 kg. 0.08 x = 56 x = 56 / 0.08 x = 700
Saturday, November 1, 2008 at 8:05pm by Ms. Sue
physics
Which will result in the greatest acceleration? 56 N action on a 1-kg box 56 N acting on a 2-kg bag 23 N acting on a -kg bag 23 N acting on a 5-kg bag
Sunday, March 29, 2009 at 11:02pm by Tiara
Physics
What is the minimum speed the rock can have without the string becoming "slack"? (The rock is traveling in vertical circle. Assume that m = 1.6 kg and r = 0.48 m.)
Friday, June 22, 2012 at 5:22pm by Sierra
Chemistry
The rock in a lead ore deposit contains 84% PbS by mass. How many kilograms of the rock must be processed to obtain 1.0 kg of Pb?
Tuesday, April 1, 2008 at 4:16pm by Kate
Physics
A small first-aid kit is dropped by a rock climber who is descending steadily at 0.5 m/s. (a) After 2.6 s, what is the velocity of the first-aid kit?
Monday, March 24, 2008 at 7:58am by John
physics
A 4.2 kg rock is initially at rest at the top of a cliff. Assume that the rock falls into the sea at the foot of the cliff and that its kinetic energy is transferred entirely to the water. How high is the cliff if the temperature of 1.5 kg of ...
Monday, February 13, 2012 at 12:19am by Anonymous
physics
A golf ball threw by a friend from a window of her apartment collides with a rock that you throw at the same moment at x=44.07m and y=13.63 m, and t=2.56 s. If the ball was dropped from a height of h=45.78 m, determine the initial velocity of the rock(write de x- and y- ...
Tuesday, February 28, 2012 at 5:14am by abad
math
so it would be like, 5/8 ? 6/7 8,16,24,32,40,48,56,64 7,14,21,28,35,42,49,56 LCD IS 56 so now i do 56/7=8*6=48 6/7=48/56 56/8=7*5=35 so, 5/8=35/56 5/8 (35/56) < 6/7 (48/56)
Tuesday, February 14, 2012 at 4:47pm by john
Physics
Use (net Force) = ma and figure out the upward force F applied by the rope on the climber's hands. The NET force on the climber is more than F. Can you see why?
Monday, September 17, 2007 at 11:52pm by drwls
physics
A large rock that weighs 164.0 N is suspended from the lower end of a thin wire that is 3.00 m long. The density of the rock is 3200 kg/m^3. The mass of the wire is small enough that its effect on the tension in the wire can be neglected. The upper end of the wire is held ...
Friday, April 27, 2012 at 1:46pm by anonymous
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