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College Physics - Weight

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college physics
a 1.0 N-weight is hanging at rest as shown. In each case, write in the magnitude of the unknown force. a) chain with a weight of 2.5 N has a 1.0 N hanging weight b) chain with a weight of .5 N has a 1.0 N hanging weight c) stretched elastic band with negligible weight has a 1....

College Physics
A weight W is now placed on the block and 7.7 N is needed to push them both at constant velocity. What is the weight W of the block? Answer in units of N.

statistics
A nutritionist studying weight gain for college freshmen obtains a sample of n = 20 first year student at the state college. Each student is weighed on the first day of school an again on the last day of the semester. The following scores measure the change in weight, in ...

College Physics
As part of a training program, an athlete runs while holding 8.00 weights in each hand. As he runs, the weights swing through a 30.0 arc in . His hands are 72 from his shoulder joint, and they are light enough that we can neglect their weight compared with that of the 8.00 ...

science
The mean weight of 500 male students at a certain college is 151 pounds (lb), and the standard deviation is 15 lb. Assuming that the weights are normally distributed, find the probability of students weight (a) between 121 and 155 lb (b) more than 185 lb. c) if 4% of the ...

Physics
a 1.0 N-weight is hanging at rest as shown. In each case, write in the magnitude of the unknown force. a) chain with a weight of 2.5 N has a 1.0 N hanging weight b) chain with a weight of .5 N has a 1.0 N hanging weight c) stretched elastic band with negligible weight has a 1....

College Physics
What is the momentum of an automobile (weight = 9700 N) when it is moving at 36 m/s to the south?

physics
There is a weight on a table, connected by a cord to another weight hanging over a pulley, as shown in the diagram below. The coefficient of kinetic friction for the weight on the table is 0:25. How fast does the hanging weight accelerate? Top weight is 12 kg and bottom is 5kg.

physics
A 20-lb weight is hung on an 18-in. spring stretching it 6 in. The weight is pulled down 5 in. and 5 lb are added to the weight. If the weight is now released with a downward velocity of y0 in./sec, find the position of mass relative to the equilibrium in terms of y0 and valid...

college physics
By immersing a crown in water its volume is 26inc^3=4.2x10^-4m^3. what would its weight be if it were pure gold? What would its weight be if its volume were half gold and half lead?

statistics
You asked ten of your classmates about their weight. On the basis of this information, you stated that the average weight of all students in your university or college is 145 pounds . this is an example of?

College Physics
What will a spring scale read for the weight of a 73 kg woman in an elevator that moves upward with constant speed of 5.4 m/s?

college
if an object sinks in a particular fluid,the weight density (weight/volume) of the object will less than, equal to, or greater than, the weight density of the fluid

college algebra
If a 25 lb weight is attatched to a spring how far will it stretch? I got an answer for a 15 lb weight with 8 inches to be 15/8 but when I plug in 15/8 into my new equation it doesn't come up with the right answer.

College Physics
A child swings a yo-yo of weight mg in a horizontal circle so that the cord makes an angle of 30 degrees with the vertical. Find the centripetal acceleration.

physics
There is a weight on a table, connected by a cord to another weight hanging over a pulley, as shown in the diagram below. The coefficient of kinetic friction for the weight on the table is 0:25. How fast does the hanging weight accelerate?

Physics
A 30-lb weight is attached to one end of a 6-ft uniform beam whose own weight is 20-lb. Where is the balance point of the system? I know the answer is "1.2 ft from the 30-lb weight" but I can't figure out how to get there. Please help. Thanks...

College Algebra
Hooke's Law states that the distance a spring stretches is directly proportional to the weight attached to the spring. If a 30-pound weight attached to the spring stretches the spring 8 inches, find how much weight is needed to stretch the spring 12 inches.

Physics
A uniform rod of weight 5N and lenght 1m is pivoted at a point of 20 cm from one of its ends. A weight is hung from the other end so that te rod balances horizontally. What is the value of the weight? How do I find it if I don't know the weight at the other end?

college physics
Why do the passengers in high- altitude jet planes feel the sensation of weight while passengers in the International Space Station do not?

College Physics
The four tires of an automobile are inflated to a gauge pressure of 2.0x10^5 Pa. Each tire has an area of 0.024m^2 in contact with the ground. Determine the weight of the automobile.

College Physics 2
a very small ball has a mass of 5 x 10^-3 kg and a charge of 4x10^-6C(microC). What magnitude electric field directed upwad will balance the weight of the ball?

physics
Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by assuming that your weight density is a bit less than that of water.) Assume that your weight is a about 1000 N, for example.

physics
Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by assuming that your weight density is a bit less than that of water.) Assume that your weight is a about 1000 N, for example.

physics
Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by assuming that your weight density is a bit less than that of water.) Assume that your weight is a about 1000 N, for example.

physics
Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by assuming that your weight density is a bit less than that of water.) Assume that your weight is a about 1000 N, for example.

college physics
a 3m long light board with negligible weight is supported at each end by cables. a painter weighing 900 N stands 1m from the left cable. find the tension in each cable,

College Physics
A 3.0 m long light board with negligible weight is supported at each end by cables. a painter weighing 900 N stands 1.o m from the left cable. Find the tension in each cable.

college physics
This site is just a front for liveperson Most college physics questions are not answered for months if ever. Out of "200 experts" you must have somebody who knows physics right? Guess not.

College Physics - Weight
A planet has a mass of 7.93 × 1023 kg and a radius of 2.58 × 106 m. (a) What is the acceleration due to gravity on this planet? (b) How much would a 67.0-kg person weigh on this planet?

Statistics Help !!
Are my answers here correct ? Research questions for z test, t test for independent samples and t test for dependent samples : z test: "An investigator is interested in finding out whether the particular sample of college students is similar to or different from college ...

Statistics
Are my answers here correct ? Research questions for z test, t test for independent samples and t test for dependent samples : z test: "An investigator is interested in finding out whether the particular sample of college students is similar to or different from college ...

Statistics Help !!!!
Are my answers here correct ? Research questions for z test, t test for independent samples and t test for dependent samples : z test: "An investigator is interested in finding out whether the particular sample of college students is similar to or different from college ...

College Algebra and Trigonometry
A weight is attached to an elastic spring that is suspended from a ceiling. If the weight s pulled 1 inch below its rest position and released its displacement in inches after t seconds is given by x(t)=(5pt+p/3. Find the first two times for which the displacement s 1.5 inches.

College Algebra and Trigonometry
A weight is attached to an elastic spring that is suspended from a ceiling. If the weight s pulled 1 inch below its rest position and released its displacement in inches after t seconds is given by x(t)=(5pt+p/3. Find the first two times for which the displacement s 1.5 inches...

College Algebra & Trigonometry
A weight is attached to an elastic spring that is suspended from a ceiling. If the weight is pulled 1 inch below its rest position and released its displacement in inches after t seconds is given by x(t)=2cos(5ðt+ð/3). Find the first two times for which the displacement s 1....

Physics
the weight of an object changed by =25.0% the object's final weight was 2.5 grams. What is it's inital weight

Physics
Is it true that with buoyancy, the weight of the displaced water equals the weight of the complete object, even if only a part of the object is submerged? If so, why, since the weight of a larger object would be greater than that of a smaller one?

Physics
A uniform rod of weight 5N and length 1m is pivoted at the 20cm mark from one end. A weight is hung from the other end so that the rod balances horizontally. What is the value of the weight?

physics
Ray's weight is 3 times the weight of his sister. His dad weighs twice as much as Ray. Their total weight is 400 pounds. How much does each person weigh?

physics
CRITICAL THINKING: The term ”weight” in physics has the following very specific meaning: “The weight of an object is the name given to a particular force: the gravitational force exerted by the earth on the object, giving it an acceleration of 9.8 m/s2 near the surface ...

physics
CRITICAL THINKING: The term ”weight” in physics has the following very specific meaning: “The weight of an object is the name given to a particular force: the gravitational force exerted by the earth on the object, giving it an acceleration of 9.8 m/s2 near the surface ...

physics
Which is true as one gets closer to the center of the earth? a. The person’s weight increases b. The person’s weight decreases c. The person’s weight remains the same d. The person’s mass changes e. A new dimension is discovered

physics
How to calculate the force required to move a 6.12Kg weight up a 10degree friction rig? I have done experiments on the friction rig, adding weight until the sliding weight moved, but the calculated results do not match up. Can anyone help?

PHYSICS thankyou in advance...
A cake of soap placed in a bathtub of water sinks. The buoyant force on the soap is: a- Zero b- Less than its weight c- Equal to its weight d- More than its weight I believe is D for if the cake of soap sinks, it means that the specific gravity is more than 1, so it is more ...

physics
A cake of soap placed in a bathtub of water sinks. The buoyant force on the soap is: a- Zero b- Less than its weight c- Equal to its weight d- More than its weight I believe is D for if the cake of soap sinks, it means that the specific gravity is more than 1, so it is more ...

Physics
A Ferris wheel has a circumference of 93 m and it completes one rotation in 2.3 minutes without stopping. What is the percentage change in apparent weight (=weight difference/weight = W/W) of a passenger between the highest and the lowest positions on this Ferris wheel?

physics
How can i answer this question ? Two men carry a weight of 800 Newton. The weight is carried by a stick 1 meter long. If the weight is 40 cm from one man, what is the force need to be applied by each man, to keep the stick horizontal?

Physics 11th Grade
Ninja usually weighs 80 kg. He ate 5 kg of cookies over the Holiday Break: a. What is his weight? and B. How can ninja use physics to lose weight?

College Chemistry
The Water loss by the sample, and the percent by weight of water in the unknown hydrates is 34.78%H2O. which of the ten possible hydrates are the most likely ones to be your unknown based on the percent by weight?

Physics
If you are given many closed sacks filled with different amounts of identical marbles, how could you determine the weight of a single marble without opening the sacks? (Assume the weight of the sack material can be ignored.) The only thing I could think of was to weigh the bag...

Physics
A 4 kg weight falls on a spring that is facing up. The weight compresses the spring 0.25m. If the spring constant of the spring is 3.5N/m, how high was the weight when it was dropped?

College Math
Hooke's Law the table shows the distance D that a spring stretches when a weight W is hung on it. W (pounds 2 6 9 15 D (inches) 1.6 4.8 7.2 12 (a.) Do the data represent direct or inverse variation? Explain. (b.) Find an equation that models the data. (c.) How far will the ...

Math College
The women’s recommended weight formula from Harvard Pilgrim Healthcare says, "Give yourself 100 lb for the first 5 ft plus 5 lb for every inch over 5 ft tall." a. Find a mathematical model for this relationship, where W be the recommended weight in lbs for a woman i inches ...

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.

Physics (Please help!!!)
If you are given many closed sacks filled with different amounts of identical marbles, how could you determine the weight of a single marble without opening the sacks? (Assume the weight of the sack material can be ignored.) The only thing I could think of was to weigh the bag...

college physics
"The Magnitude of the buoyant force is equal to the weight of fluid displaced” is a statement of which principle in the study of fluids? Select one: a. Pascal's Principle b. Archimedes' Principle c. Bernouilli’s Principle d. The Equation of Continuity

Physics(Please help)
A paperweight, when weighed in air, has a weight of W = 6.95 N. When completely immersed in water, however, it has a weight of Win water = 4.26 N. Find the volume of the paperweight. Would I multiply the two values of weight and then by the density of water?

Physics
A vertical spring has one end attached to the ceiling and a 2.50 kg weight attached to the other one. When the system is at rest, the spring is stretched by 20.0 cm. Now let the weight drop from a position in which the spring is not deformed at all.Use the conservation of ...

Physics
While in an elevator, you decide to take some weight readings of yourself to determine the elevator’s acceleration. When the elevator is stopped, you read a weight of 59.2 kg. When the elevator is moving, you measure a maximum weight of 63.5 kg, and a minimum weight of 55.9 ...

Physics
Take an average 82 kg pet frog, what's it weight on earth? What is it's weight on the moon?

physics
if the weight of the stone was 2 N and the upthrust was 1 N what weight would the force meter show?

physics
Calculate in newtons weight of 2.5kg melon. and what is it's weight in pounds?

Physics/Astronomy
What would a person's weight be on Mars compared to one's weight on Earth?

Physics
An object weighing 1N in air .it got 0.8N weight when it is emerssed in water what is it's loss of weight?

college physics
In the drawing, the weight of the block on the table is 478 N and that of the hanging block is 195 N. Ignore all frictional effects, and assuming the pulley to be massless. (a) Find the acceleration of the two blocks. (b) Find the tension in the cord.

college physics
find the weight of a piece of wood with a density of .5 g/cm cubed. which when attached to a 5kg stone in water it will sink. the density of the stone is 3g/cm cubed

physics
A woman has a mass of 42.9 kg. What is her weight on earth? and what is her weight on the moon, where g=1.17 m/s2

Physics
A 15 kg uniform disk of radius R = 0.25 m has a string wrapped around it, and a m = 3.3 kg weight is hanging on the string. The system of the weight and disk is released from rest. When the 3.3 kg weight is moving with a speed of 2.1 m/s, what is the kinetic energy of the ...

physics
The weight of an object changed by +25.0%. The object's final weight was 2.5 grams. What is the initial weight of the object?

physics
A water bed has dimensions of 1.83mx1.86mx.238m. The floor of the bed room will tolerate an additional weight of no more than 6660N. Find the weight of the water in the bed and determine whether it should be purchased. The weight of the water in the water bed is (volume* g* ...

physics
The weight of a solid in air is four times greater than the weight of solid in water. Find its weight of which solid in water if it has relative density is 64.

College Physics
where must a 500 N weight be hung on a uniform beam w/ a length of 5 m and weighs 150 N so that the girl standing on the other end is 1/4 as much as the boy standing at the other end?

College Calc
The average daily metabolic rate for rodents can be expressed by the function m=85.65w^0.54, where w is the weight in kg and m is the metabolic rate in kcal/day. Determine the rate of change in the metabolic rate with respect to time for a 0.25kg rodent that is gaining weight ...

physics
A large, cylindrically-shaped weight is suspended from a long spring found hanging from a rafter. The weight is slender metal cylinder about two meters long that is suspended with its flat bottom about half meter above the level concrete floor. When a 1 kg mass is added, the ...

physics
An athlete is supporting a weight of 200N in his hand with his forearm at a right angle to his biceps. Assuming his biceps are in the vertical plane, the axis of rotation of the forearm is 3 cm from the elbow and 25 cm from the centre of gravity of the weight, calculate the ...

Physics
A 30-lb weight is attached to one end of a 6-ft uniform beam whose own weight is 20-lb. Where is the balance point? Thanks in advance.

Physics
The mass of mars is 6.42 x 10^23 kg and its radius is 3.38 x 10^6m, What is the weight of a 70.0 kg student on this planet? I know weight equals (m)(a) but im not sure how to relate it to the information given

physics
If a person has a weight of 145 lb at sea level, by how much is their weight reduced when flying on an airplane at an altitude of 10700 m?

physics
A sack of flour has weight of 19.8N. what is its weight in pounds?

College physics
An airplane is cruising along in a horizontal level flight at a constant velocity, heading due west. (a) If the weight of the plane is 5.54 104 N, what is the net force on the plane? (b) With what force does the air push upward on the plane?

Physics
A 10cm times 10cm times 10cm wood block with a density of 700kg/m^{3} floats in water. What is the distance from the top of the block to the water if the water is fresh? weight= density*volume*g weight=700*(0.001)*9.81 weight=6.86newton weight=densitywater*g*10cm*10cm*depth 6....

Physics
High-heeled shoes can cause tremendous pressure to be applied to the floor. Suppose the radius of a heel is 6.00 10-3 m. At times during a normal walking motion, nearly the entire body weight acts perpendicular to the surface of such a heel. Find the pressure that is applied ...

PHYSICS HELP
A 525-N trunk is placed on an inclined plane that forms an angle of 30.0 degrees with the horizontal. What are the components of the weight parallel to the plane and normal to the plane? Memorize this: weight normal = mg cosTheta weight parallel= mg Sin Theta.

Physics
A weight lifter is bench-pressing a barbell whose weight is 710 N. He raises the barbell a distance of 0.65 m above his chest then he lowers it at 0.27 m. Determine the work done on the barbell by the weight lifter during:a.)the lifting phase and b.) the lowering phase.

physics
Inclined plain-----on Hypotenuse weight of 250 Newton is placed and the base distance is 9 m. What is the minimum force required to lift the weight up?

physics
A weightlifter is trying to carry a 10 kg weight held over his head across the room. How much energy will be required to do this work on the 10 kg weight?

physics
A weightlifter is trying to carry a 10 kg weight held over his head across the room. How much energy will be required to do this work on the 10 kg weight?

Physics
You step into an elevator, and it accelerates to a downward speed of 8.2 m/s in 2.2 s . How does your apparent weight during this acceleration time compare with your actual weight?

Physics
John's approval rating is an average based upon 4 categories. What is his overall weighted rating if the following is true? Category 1= 450 points weight factor 1 Category 2= 475 points weight factor 2 Category 3= 500 points weight factor 1 Category 4= 400 points weight factor 3

college
Calculate the pH of concentrated hydrochloric acid if this solution is 24.8 % HCl by weight and has a density of 1.16 g/mL. a. ) -0.77 b. ) -0.83 c. ) -0.90 d. ) -0.98 e. ) -1.01 i got c

college
why a weight reading is considered constant when the last two consecutive weights are within 0.0003g?

Physics
f a 40 kg weight and a 200 kg weight each dropped from 1 m above the trampoline, find the final position of each weight. Assume the trampoline is a simple spring obeying Hooke's law with a k value of 12 000 N/m. I was able to get the answer to this, using mg(h+x) = 1/2kx^x but...

college
if distance is 59 cm and the weight is 3 kg then what is the distance when the weight is 9 kg

Chemistry
I am trying to show that the combined weight of the reactants is equal to the combined weight of the reaction. When I placed CaCl2 into Na2 CO3 I didn't lose any weight. When I added Sulfuric Acid, I could not recork due to safety, therefore I lost Carbon Dioxide which reduced...

Physics
A Ferris wheel is 60 meters in diameter and rotates once every 12.5s. what is the ratio of a person's apparent weight to her real weight (a) at the top, and (b) at the bottom?

physics
Describe the difference between the quantities, mass and weight. Give a description of two distinctly different ways in which object's weight can be altered.

Physics
Calculate the weight of an astronaut whose mass (including spacesuit)is 72kg on the surface of the moon? What is the astronauts weight on Earth? Comment on the difference

physics
When a body hanging from a spring balance is immersed in water it floats just below the surface of water and shows 100g loss in its weight (I) what is the weight of the body in water? (Ii) what is the weight of the body in air? (Iii) what is the up thrust on the body? (Iv) ...

physics
an 800 N person stands on a scale in an elevator. What is his apparent weight when the elevator is accelerating upward at 2 m/s^2? B) what5 is his apparent weight when the elevator is acc. downward at 2m/s^2? c) what is his apparent weight when the elevator is moving downward ...

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