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September 22, 2014

Homework Help: Science: Physics

Recent Homework Questions About Physics

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physics
If an archaeologist finds an ancient fire pit containing partially consumed firewood and the 14C content of the wood is only 10% of an equal carbon sample from present day tree, what is the age of ancient site. 14 C has half life of 5730 years
Sunday, May 4, 2014 at 5:34pm

Physics question
Does the crest of a wave usually have a larger amplitude than the trough?
Sunday, May 4, 2014 at 5:33pm

Physics
A vibrating point on a spring travels 60 mm during three cycles. What is the amplitude of the vibration?
Sunday, May 4, 2014 at 5:24pm

physics
suppose the length of a clock's pendulum is increased by 0.01 exactly at noon what time will be exactly next day by noon
Sunday, May 4, 2014 at 5:17pm

physics
A 1,500 kg car starts from rest and accelerates to a speed of 12 m/s over a distance of 68 m a) calculate the total work on the car b) calculate the net force that caused the car to accelerate (constant force)
Sunday, May 4, 2014 at 2:21pm

physics
A 3.8 kg ball is rolling along a slippery road at 1.5 m/s E. It then rolls onto a patch of grass and slows to a stop over a distance of 3.6 m a) calculate the total work on the ball b) calculate the net force that caused the ball to come to a stop (force is constant)
Sunday, May 4, 2014 at 2:20pm

Science
GCSE Physics-Forces affecting falling objects. My falling object is a skydiver Can you please help me to find the information needed? Nothing too complicated please. Here is a list of things I need to include but I have no idea where this information can be found on the ...
Sunday, May 4, 2014 at 2:18pm

physics
Question Part Points Submissions Used 1 2 3 4 0/0.37 0/0.37 –/0.37 –/0.37 4/15 1/15 0/15 0/15 Total 0/1.48 ...A diamond in air is illuminated with white light. On one particular facet, the angle of incidence is 46.05°. Inside the diamond, red light (ë = 660...
Sunday, May 4, 2014 at 2:08pm

Physics
A hiker throws a rock with a mass of 1.4kg from a cliff that is 37 m above the ground . The hiker gives the rock an initial downward velocity of 8.5 m/s. a) What is the energy of the rock at the moment the hiker releases it? b) What is the velocity of the rock at the moment it...
Sunday, May 4, 2014 at 12:39pm

Physics
A soccer player kicks a 0.43 kg ball straight up to see how far it will rise. The ball starts with a velocity of 16m/s at a height of 0.85m above the ground. It rises then falls straight down to the ground. a) what is the total energy of the ball just after it is kicked? b) ...
Sunday, May 4, 2014 at 12:37pm

physics
A diamond in air is illuminated with white light. On one particular facet, the angle of incidence is 46.05°. Inside the diamond, red light (ë = 660.00 nm in vacuum) is refracted at 17.38° with respect to the normal; blue light (ë = 470.00 nm in vacuum) is ...
Sunday, May 4, 2014 at 11:52am

physics
Sunlight strikes the surface of a lake at an angle of incidence of 44.5°. At what angle with respect to the normal would a fish see the Sun?
Sunday, May 4, 2014 at 11:47am

Science
GCSE Physics-Forces affecting falling objects. My falling object is a skydiver Can you please help me to find the information needed? Nothing too complicated please. Here is a list of things I need to include but I have no idea where this information can be found on the ...
Sunday, May 4, 2014 at 10:52am

physics
what is the magnitude and the direction of an electric field when an electron is accelrated vertically upward at a distance of 5.5 metres in 3 micro seconds?
Sunday, May 4, 2014 at 7:06am

physics
Consider a rectangular swimming pool of depth 2.3 m with a width and length of 13 m. What is the force exerted by the water on one of the sidewalls of the pool?
Saturday, May 3, 2014 at 10:15pm

physics
A 9.0 §Ù resistor and a 53.0 §Ù resistor are connected in parallel to a battery, and the current in the 9.0 §Ù resistor is found to be 1.41 A. Find the potential difference across the bat- tery.
Saturday, May 3, 2014 at 9:53pm

Physics
A construction worker is standing in a 2.6 m deep well, 3.1 m from the side of the well's wall. He tosses a hammer to a companion outside the well. If the hammer leaves his hand 1.0 m above the bottom of the well, at an angle of 35 degrees to the horizontal, what is the ...
Saturday, May 3, 2014 at 3:45pm

physics
A proton is suspended at rest in a uniform field E.Take into account gravity and determine E.
Saturday, May 3, 2014 at 11:05am

physics
What is the magnitude of the acceleration of anelectron in a 2200 N/C electric field?I want the solution to this problem.
Saturday, May 3, 2014 at 11:00am

physics
If a particle has kinetic energy K = 60 MeV when its momentum magnitude p = 100 MeV/c, what is the ratio m/me of its mass to the electron mass?
Saturday, May 3, 2014 at 9:11am

physics
Two inelastic balls of masses 2 and 3 kg are moving at the velocities 8 and 4 m/s. Find the increase of the internal energy if the first ball catches up the second one.
Saturday, May 3, 2014 at 7:39am

physics
An engine manufacturer makes the following claims: The heat input per second of the engine is 90.0 kJ at 375 K. The heat output per second is 4.0 kJ at 225 K. Do you believe these claims?
Saturday, May 3, 2014 at 6:06am

physics
1.A beam of light passes through the air and enters a diamond at an angle of incidence of 40 degrees. Use Snell’s Law to find the angle of refraction of the diamond. (Index of refraction for air is 1.00 and the index of refraction of a diamond is 2.42.) If the beam of ...
Friday, May 2, 2014 at 10:18pm

Physics
A 74.2-kg climber is scaling the vertical wall of a mountain. His safety rope is made of a material that, when stretched, behaves like a spring with a spring constant of 1.62 x 103 N/m. He accidentally slips and falls freely for 0.959 m before the rope runs out of slack. How ...
Friday, May 2, 2014 at 8:16pm

Physics
A 4.07 x 10-2-kg block is resting on a horizontal frictionless surface and is attached to a horizontal spring whose spring constant is 144 N/m. The block is shoved parallel to the spring axis and is given an initial speed of 10.5 m/s, while the spring is initially unstrained. ...
Friday, May 2, 2014 at 6:54pm

Physics
A 32.0kg crate is initially moving with a velocity that has magnitude 3.92m/s in a direction 37.0 ∘ west of north.How much work must be done on the crate to change its velocity to 5.50m/s in a direction 63.0 ∘ south of east?
Friday, May 2, 2014 at 6:50pm

physics
In the Bohr model of the atom, the ground-state electron in hydrogen has an orbital speed of 2190 km/s.The mass of an electron is 9.11×10−31kg. What is its kinetic energy?
Friday, May 2, 2014 at 6:46pm

Physics
Mountain pull. A large mountain can slightly affect the direction of “down” as determined by a plumb line. Assume that we can model a mountain as a sphere of radius R = 3.00 km and density (mass per unit volume) 2.6 × 103 kg/m3. Assume also that we hang a 0.250...
Friday, May 2, 2014 at 4:37pm

Easy physics...having trouble with part b
Moon effect. Some people believe that the Moon controls their activities. If the Moon moves from being directly on the opposite side of Earth from you to being directly overhead, by what percentage does (a) the Moon's gravitational pull on you increase and (b) your weight...
Friday, May 2, 2014 at 4:36pm

Physics- check answer please
1. A vibrating point on a spring travels 60 mm during three cycles. What is the amplitude of the vibration? a) 0.05 mm b) 5.0 mm c) 15.mm d) 20.mm e) 180 mm my answer: I got 10 mm but it is not listed as an option
Friday, May 2, 2014 at 3:49pm

Physics
When a tuning fork of unknown frequency is sounded simultaneously with a 512 Hz tuning fork, 20 beats are heard in 4.0 seconds. What are the possible frequencies of the unknown tuning fork?
Friday, May 2, 2014 at 3:49pm

PHYSICS
79X190 find (a) the net electrical charge of the nucleus, (b) the number of neutrons, (c) the number of nucleons, (d) the approximate radius of the nucleus, and (e) the nuclear density. I have already determined B and C. I only need to know the equations for A, D, and E Thank you
Friday, May 2, 2014 at 3:30pm

Physics
A 4.07 x 10-2-kg block is resting on a horizontal frictionless surface and is attached to a horizontal spring whose spring constant is 144 N/m. The block is shoved parallel to the spring axis and is given an initial speed of 10.5 m/s, while the spring is initially unstrained. ...
Friday, May 2, 2014 at 12:54pm

Physics (URGENT!!!)
A sniper fires a bullet at 120 m/s at 30° above the horizontal from the roof top of a 35 m high parking garage. If the bullet strikes the level ground beside the parking garage: a) How long was the bullet in the air? b) How far from the base of the parking garage did the ...
Friday, May 2, 2014 at 12:53pm

physics
one can determine a persons center of mass by having them recline on a plank resting on two scales. A person 2m tall lies on such a plank and the scale near her head reads 405 N and the one near her feet reads 360 N. Find the center of her mass.
Friday, May 2, 2014 at 12:46pm

Physics
A pirate captain has asked you to help him engineer a new plank to have prisoners walk overboard from. He needs the plan to fall overboard with the prisoners in order not to leave any evidence behind. He has a uniform beam of length 8m and a mass of 100kg is resting on two ...
Friday, May 2, 2014 at 12:44pm

physics
You lay a board over two wooden pegs. The board has a length of 5m and weighs 25 N. it overhangs the left peg by 1m and the right by 2m. Determine the normal force that each peg exerts on the board.
Friday, May 2, 2014 at 12:40pm

physics
You are a sucker for scenic overlooks, so you want to build a house overhanging a cliff. The way you do this is by taking a 20,000 N concrete beam and hang it over the edge of the cliff with one edge at the cliff ledge and the other edge 700m away in free space. You plan to ...
Friday, May 2, 2014 at 12:38pm

physics
A ladder of mass 20kg and length 5m can be held up against a wall because the wall exerts a normal force against it. The grass has a coefficient of a static friction of 0.35. find the normal force of the wall against the ladder.
Friday, May 2, 2014 at 12:24pm

physics
A turntable with a radius of 12cm is being explored by two bugs, one at 5cm from the center and another, very dizzy beetle at 2cm from the center. The turntable is spinning at 7 rad/s. Which bug will have the greater angular momentum?
Friday, May 2, 2014 at 12:22pm

physics
You always carry 3 wristwatches. One of them is synchronized with your labs atomic clock. Another is running low on battery and is 3 minutes behind, while the third watch is running 6 minutes fast. All were set to the same time when purchased. List the comparative angular ...
Friday, May 2, 2014 at 12:11pm

Physics
A figure skater spinning in a circle and dazzling the Olympic judges brings her arms together for a final flourish. 1. Does her angular momentum increase, decrease, or stay the same after she pulls her arm in? 2. Does her angular velocity increase, decrease, or stay the same ...
Friday, May 2, 2014 at 12:09pm

Physics
A rolling barrel with initial velocity 20 m/s encounters a hill 10m tall to slow it down 1. state where its angular speed is 0 2. state where its rotational kinetic energy will be 0 3. state where its translation kinetic energy will be 0 4. for each of the two flat surfaces ...
Friday, May 2, 2014 at 12:06pm

Physics
You have a crane boom with a mass of 10000kg being held up by a cable and holding a weight of 2500kg. A. Find the torque caused by the weight B. Find the torque caused by the cable C. Find the torque caused by any other force holding it in equilibrium
Friday, May 2, 2014 at 12:01pm

Physics
You wonder what would happen if you fired a 9.109e-31kg particle moving at 20 m/s in the x direction of a 1.672e-24kg particle moving at 12 m/s at 110 degrees from the x direction. The lighter particle hits the screen at a 100 degree angle from the x direction. What is the ...
Friday, May 2, 2014 at 11:59am

Physics
You shoot your enemy's reflection in the mirror while playing paintball. The y axis is perpendicular to the mirror. The mirror has a mass of 1kg and the paintball has a mass of 0.05 kg. The paintball hits the mirror at a speed of 8 m/s at an angle of 25 degrees from the ...
Friday, May 2, 2014 at 11:56am

Physics
Instead of standing in the back of the lane and rolling the ball toward the pins like most people, you place a 5kg bowling ball at rest at the back of the lane and try to hit it toward the pins with a perfectly elastic collision using a 1kg ball rolling at 5 m/s from a 25 ...
Friday, May 2, 2014 at 11:51am

Physics
A 25,000kg bowling ball moving at 40 m/s on a path angled at 17 degrees hits a 10000kg bowling ball moving at 25 m/s on a path angled at 60 degrees causing the lighter ball to be deflected of to an 65 degree angle. Assuming this is a two dimensional, perfectly elastic ...
Friday, May 2, 2014 at 11:47am

physics
A bookshelf is at rest in a room. A force of 35.0 newtons is applied to a bookshelf. If the floor imparts a frictional force of 2.90 newtons, what is the net force acting on the bookshelf? 37.9 newtons 32.1 newtons 33.1 newtons 35.0 newtons 50.5 newtons
Friday, May 2, 2014 at 10:38am

Physics/Calculus
It takes a force of 21,714lb to compress a coil spring assembly on a New York City Transit Authority subway car from its height of 8in to its fully compressed height of 5in. A. What is the assemblys force constant? B. How much work does it take to compress the assembly the ...
Friday, May 2, 2014 at 9:43am

Physics
A mountain climber is about to haul up a 50m length of hanging rope. How much work will it take if the rope weighs .624 N/m?
Friday, May 2, 2014 at 9:40am

Physics
A force of 2N will stretch a rubber band 2 cm. Assuming that Hooke's law applies, how far will a 4N force stretch the rubber band? How much work does it take to stretch the rubber band this far?
Friday, May 2, 2014 at 9:40am

Calculus/Physics
A spring has a natural length of 10in. An 800lb force stretches the spring to 14in. A. Find the force constant B. How much work is done in stretching the spring from 10 to 12 inches? C. How far beyond its natural length will a 1600lb force stretch the spring.
Friday, May 2, 2014 at 9:39am

Calculus/Physics
It took 1800J of work to stretch a spring from its natural length of 2m to a length of 5m. Find the spring's force constant.
Friday, May 2, 2014 at 9:38am

Physics
A sniper fires a bullet at 120 m/s at 30° above the horizontal from the roof top of a 35 m high parking garage. If the bullet strikes the level ground beside the parking garage: a) How long was the bullet in the air? b) How far from the base of the parking garage did the ...
Friday, May 2, 2014 at 2:37am

physics
If the end of the ruler of length 1 m is raised by 25 cm, the wooden bar is sliding down at the constant speed. What is the acceleration of the bar if the height of the end is increased twice
Thursday, May 1, 2014 at 11:19pm

physics
A moving object has a kinetic energy of 147 J and a momentum of 22.3 kg·m/s. a) Find the speed of the object. Answer in units of m/s
Thursday, May 1, 2014 at 10:11pm

Physics
An ornamental thermometer, commonly known as a Galileo thermometer, contains a number of spheres of hollow colored glass, representing different temperatures, immersed in a column of ethanol. A particular sphere rises from the bottom to the top of the column of liquid when the...
Thursday, May 1, 2014 at 6:50pm

Physics waves
1. A vibrating point on a spring travels 60 mm during three cycles. What is the amplitude of the vibration? a) 0.05 mm b) 5.0 mm c) 15.mm d) 20.mm e) 180 mm my answer: I got 10 mm but it is not listed as an option 2. When a tuning fork of unknown frequency is sounded ...
Thursday, May 1, 2014 at 4:24pm

Physics/Algebra
Physics: For a 225-watt bulb, the intensity I of light in lumens at a distance of x feet is I=225/x^2. a. What is the intensity of light 5 ft from the bulb? b. Suppose your distance from the bulb doubles. How does the intensity of the light change? Explain.
Thursday, May 1, 2014 at 4:14pm

Physics
Find the equivalent resistance in 16 ohm and 8.0 ohm connected in parallel.
Thursday, May 1, 2014 at 3:37pm

Physics quick help please
6. If 4.0 × 1018 J of work done on a point charge changes its electric potential difference by 25.0 V, then what is the magnitude of the charge? (Points : 1) 1.6 × 101^9 C 4.0 × 101^9 C 1.6 × 101^8 C 4.0 × 101^8 C 7. Two parallel plates have an ...
Thursday, May 1, 2014 at 12:32pm

PHYSICS URGENT
2. A point charge of +1.0 µC is moved in the direction of an electric field, and it has a change in electric potential difference energy of 10.0 J. What was the change in electric potential difference? 1 µC = 10-6 C (Points : 1) -1.0 × 10^8 V -1.0 × 10^...
Thursday, May 1, 2014 at 12:25pm

Physics
A piston in a bicycle pump is pressured half way into the pump without letting air get out and at unchanged temperature. Inside diameter of the pump is 2,3 cm. a) What is the pressure inside the pump in atm? b) How much force is needed to hold the piston in this position? The ...
Thursday, May 1, 2014 at 11:48am

Physics
A block of mass M1positioned on a slope (at an angle  ) is connected by means of an inextensible wire, of negligible mass, to another mass, m2, suspended from a frictionless pulley. The coefficients of static and dynamic friction between the slope and M1are 0.3 and 0.2...
Thursday, May 1, 2014 at 11:08am

physics
A wire of uniform thickness with a resistance of 27 ohm is cut into three equal pieces and are joint in parallel.find the resistance of the parallel combination.
Thursday, May 1, 2014 at 6:34am

Physics
Find the equivalent resistance in 16 ohms and 8.0 ohms connected in parallel.
Wednesday, April 30, 2014 at 10:46pm

Physics- HELP PLEASE:)
4.) Three 20-Ù resistors are connected in series to a 9-V battery. What is the voltage difference across each resistor? 5.) Three resistors of 5 Ù, 10 Ù, and 2 Ù are connected in parallel with one another. What is the equivalent resistance of this ...
Wednesday, April 30, 2014 at 10:28pm

Physics
An artificial satellite circles the Earth in a circular orbit at a location where the acceleration due to gravity is 8.26 m/s2. Determine the orbital period of the satellite. ____min Ive tried everything I can think of the value im getting through the equations though isn'...
Wednesday, April 30, 2014 at 8:16pm

Physics waves
1. A vibrating point on a spring travels 60 mm during three cycles. What is the amplitude of the vibration? a) 0.05 mm b) 5.0 mm c) 15.mm d) 20.mm e) 180 mm my answer: I got 10 mm but it is not listed as an option 2. When a tuning fork of unknown frequency is sounded ...
Wednesday, April 30, 2014 at 8:01pm

Physics
You have a crane boom with a mass of 10000kg being held up by a cable and holding a weight of 2500kg. 1. Find the torque caused by the weight 2. Find the torque caused by the cable 3. Find the torque caused by any other force holding it in equilibrium
Wednesday, April 30, 2014 at 6:52pm

physics
A stone is thrown in vertical upward direction with velocity of 5 m/s. if the acceleration of the stone during it motion is 10 m/s2 in h downward direction, what will be the height attained by the stone and how much time will it take to reach there?
Wednesday, April 30, 2014 at 12:56pm

physics
what property does (-5)+5=0 illustrate
Wednesday, April 30, 2014 at 12:45pm

Physics
A cylinder with a movable piston has the square meter 24cm2. How far will the piston go down if 5.0 kg weight is laid on the piston and the temperature remains the same? P: 1.0 atm. Help please :)
Wednesday, April 30, 2014 at 12:18pm

physics
A solid uniform sphere is released from the top of an inclined plane .25 m tall. the sphere rolls down the plane without slipping and there is no energy lost from friction. What is the translational speed of the sphere at the bottom of the incline?
Wednesday, April 30, 2014 at 12:02pm

Physics
A cue ball collides with two other snooker balls and comes to a complete stop. The angles between the centres at the point of collision are shown below. If the velocity of the incoming cue ball is 5 m/s, determine the velocities of all moving balls after the collision.
Wednesday, April 30, 2014 at 8:36am

physics
A climber stands on a ledge on one side of a valley. He claps his hands and hears an echo from the opposite side of the valley 1.6 s later. How wide is the valley?
Wednesday, April 30, 2014 at 5:47am

physics 1
The drawing shows an intravenous feeding. With the distance shown, nutrient solution (ρ = 1050 kg/m3) can just barely enter the blood in the vein. What is the gauge pressure of the venous blood? Express your answer in millimeters of mercury.
Wednesday, April 30, 2014 at 12:51am

physics
Airplane flies at velocity of 400 mph and the wind is blowing north at 200 mph
Wednesday, April 30, 2014 at 12:00am

Physics
If it takes a particle in SHM 0.60ss to travel from the equilibrium position to the maximum displacement (amplitude), what is the period of oscillation?
Tuesday, April 29, 2014 at 8:33pm

Physics
The maximum kinetic energy of a mass-spring system in SHM is equal to
Tuesday, April 29, 2014 at 8:32pm

Physics
At the Earth's surface, a projectile is launched straight up at a speed of 9.9 km/s. To what height will it rise? Ignore air resistance and the rotation of the Earth. _____m
Tuesday, April 29, 2014 at 8:08pm

Physics
An artificial satellite circles the Earth in a circular orbit at a location where the acceleration due to gravity is 8.26 m/s2. Determine the orbital period of the satellite.
Tuesday, April 29, 2014 at 8:08pm

Physics
A 1.0 m long string is fixed at both ends and has a tension of 80N. The mass of the string is 2 gm. Find the third harmonic of the sound emitted by this string. a. 50 Hz b. 100 Hz c. 200Hz d. 300 Hz
Tuesday, April 29, 2014 at 6:08pm

Physics
In the afternoon, the decibel level of a busy freeway is 80 dB with 100 cars passing a given point every minute. Late at night, the traffic flow is only 5 cars per minute. What is the late-night decibel level?
Tuesday, April 29, 2014 at 3:42pm

Physics
A golf ball struck with an initial speed of 41.8m/s. What is the range of the shot if the launch angle is 30.0º?
Tuesday, April 29, 2014 at 1:53pm

Physics
On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball. The acceleration due to gravity on the moon is 1/6 of its value on the earth (gravity on moon -1.633m/s2). On earth, golf balls are driven at about 70 m/s with a loft angle of about 15º and have...
Tuesday, April 29, 2014 at 1:34pm

physics
A 1500-kg car coast in neutral down a 2.0degrees hill. The car attains a terminal speed of 20.0 m/s. The question is:how much power must the engine deliver to drive the car on a level road at 20.0 m/s?? Help me out please!!
Tuesday, April 29, 2014 at 10:37am

Physics help
Let's say you have a plot for Pendulum experiment. Let's assume g for this experiment was measured (from the slope of the plot) to be 9.78 [ms-2. The vertical intercept, however, is 0.011 [s2]. What might this translate to for a measurement of the length offset ...
Tuesday, April 29, 2014 at 12:14am

physics
A steel (\alpha = 12 x 10^{-6} ^o C^{-1}) container with a volume of 548 {cm}^3 is filled with oil (\beta = 0.7 x 10^{-3} ^oC^{-1}). If the temperature is increased by 10^oC how much oil overflows? V_{spillage} =
Monday, April 28, 2014 at 10:23pm

physics
What is the total internal kinetic energy of 16.2 moles of a monatomic ideal gas at a temperature of 279 K? KE =
Monday, April 28, 2014 at 10:16pm

physics
A large cube (one side measuring 1.0 m) is submerged in water, with the top face of the cube 8.7 m below the surface. Find a) the force exerted by the water on each face of the cube. b) the buoyant force on the cube.
Monday, April 28, 2014 at 9:53pm

Physics
According to F=-x if F is in Newtons, what are the units of k?
Monday, April 28, 2014 at 9:19pm

physics
In the previous problem (Question 4), if the distance between the two plates of the capacitor is 3 cm, what is the magnitude of the uniform electric field between the two plates?
Monday, April 28, 2014 at 8:15pm

physics
The electric potential increases from 10 V to 70 V from the bottom plate to the top plate of a parallel-plate capacitor. We are going to move a charge of +5 x 10-4 C from the bottom plate to the top plate. What is the magnitude of the change in potential energy of this charge...
Monday, April 28, 2014 at 8:14pm

physics
The potential energy of a +2 x 10-6 C charge decreases from 0.15 J to 0.05 J when it is moved from point A to point B. What is the change in electric potential between these two points? Do not enter any (-) sign in your answer.
Monday, April 28, 2014 at 8:14pm

physics
A total charge of +4 C flows from the +9 V positive terminal of a battery to the negative terminal at 0 V. What is the change in potential energy of the charge?
Monday, April 28, 2014 at 8:13pm

physics
A charge of +0.5 C is moved from a position where the electric potential is 10 V to a position where the electric potential is 70 V. What is the the change in potential energy of the charge associated with this change in position?
Monday, April 28, 2014 at 8:12pm

physics
With a magnetic field perpendicular to a single 13.2 cm diameter circular loop of copper wire decreases uniformly from .670 T to zero. If the wire is 2.25 mm in diameter how much charge moves past a point in the coil during this operation?
Monday, April 28, 2014 at 6:04pm

physics
Your vertical spring accelerometer has a 40 g mass hanging from it. You climb aboard the roller coaster that starts at rest and watch the accelerometer read 0.45 for 5 seconds while descending the first peak and then change to 2.8 for 2.5 seconds while going through the bottom...
Monday, April 28, 2014 at 5:32pm

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