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May 27, 2016

Homework Help: Science: Physics

Recent Homework Questions About Physics

Physics
Find the work that should be done to increase the distance between two point charges with the charges of 5nC and -10nC by 5cm. The initial distance between the charges is 15cm.
Monday, February 2, 2015 by Macy

Physics
Find the potential energy of a system often point charges. 7nC and 2nC separated by 0.03m
Monday, February 2, 2015 by Macy

physics
The sum of magnitudes of two forces is 16N.if the resultant force is 8N and its direction is perpendicular to minimum force then the forces are: (a)6N,10N(b)8N,8N(c)4N,12N(d)2N,14N
Monday, February 2, 2015 by khan

college physics
two forces act simultaneously on a box. one pulls with a force of 12 pounds due south. the other pulls with a force of 8 pounds in a direction 20 degrees north od east. what is the resultant of these two forces?
Monday, February 2, 2015 by Kayla

physics
A space satellite has a total mass of 500kg. A portion of mass 20kg is ejected a velocity of 10ms-1 . Calculate the recoil velocity of the remaining portion (ignoring the initial velocity of the satellite).
Monday, February 2, 2015 by joe

Physics
A person weighs 150 N on the moon. If the acceleration due to gravity on the moon is 1.63 m/s2, what is the mass of the person?
Monday, February 2, 2015 by Fiona

physics
a rock is thrown vertically upward from ground level at t=0. At t= 1.5s, it passes the top of a tall tower and 1.0 s later, it reached its maximum height. what is the height of the tower?
Monday, February 2, 2015 by ash

Physics Kinematics
A basketball is launched with an initial speed of 12.0 m/s at 45 degrees from the ground. The height of the basket y = 2.50m. From what distance x the ball is shot? Note : The trajectory is like a basketball shot, the highest point the ball reaches is higher than the basket ...
Monday, February 2, 2015 by Vishal

Physics Kinematics
A puck slides across a smooth, level tabletop at height H at a constant speed Vo. It slides off the edge of the table and hits the floor a distance x away. What is the algebraic relationship between the distances x and H?
Monday, February 2, 2015 by Vishal

Physics
A rock is thrown horizontally from a bridge with a velocity of 13.0 m/s. It takes the rock 3.5 s to strike the water below. What is the magnitude of the velocity of the rock just before it hits the water?
Monday, February 2, 2015 by Vishal

physics
A small block with mass 0.308 kg is sliding down a frictionless ramp that is inclined at an angle of 53.1° above the horizontal. Assume g = 9.80 m/s2. (a) As the object slides down the incline, what is the magnitude of the normal force that the surface of the incline ...
Monday, February 2, 2015 by Mike

Physics
In a particular crash test, an automobile of mass 1295 kg collides with a wall and bounces back off the wall. The x components of the initial and final speeds of the automobile are 25 m/s and 1.5 m/s, respectively. If the collision lasts for 0.11 s, find the magnitude of the ...
Sunday, February 1, 2015 by monica :)

physics
A small block is released from rest at the top of a frictionless incline. The distance from the top of the incline to the bottom, measured along the incline, is 3.70 m. The vertical distance from the top of the incline to the bottom is 1.67 m. If g = 9.80 m/s2, what is the ...
Sunday, February 1, 2015 by Mike

Physics
In exercise physiology studies, it is sometimes important to determine the location of a person's center of gravity. This can be done with the arrangement shown in the figure below. A light plank rests on two scales that read Fg1 = 440 N and Fg2 = 320 N. The scales are ...
Sunday, February 1, 2015 by Angela

Physics
Three vectors of lengths A = 45.6, B = 24.2, and C = 30.4. The angles are θa = 29.6° and θb = 57.5°, and C points along the negative y-axis. Determine the length of the vector A - C. Calculate the angle of this vector. Determine the length of the vector A - B...
Sunday, February 1, 2015 by Paige

Physics
A batter hits a baseball so that it leaves the bat with initial speed of 40 m/s, at an angle of 60°. Tom Brady throws an incomplete pass at an initial speed of ~ 60 miles/hour (mph). When the ball was released, it’s initial velocity made an angle of ~45° with ...
Sunday, February 1, 2015 by Anonymous

Physics
An object fired at an angle of 31.9° above the horizontal takes 2.55 s to travel the last 15.5 m of its vertical distance and the last 10.5 m of its horizontal distance. With what speed was the object launched? (Note: This problem does not stipulate that the initial and ...
Sunday, February 1, 2015 by Charlie

physics
An astronaut visits a moon of Saturn, and decides to measure the accel. of gravity. He ties a rock (m=2 kg) to a rope (1.25 m), pulls the rock back 10 degrees, and releases it into simple harmonic motion. What is the accel due to gravity on the moon? (*I have no idea where to ...
Sunday, February 1, 2015 by Alexis

Physics 131
A -2.72 ìC charge is placed at the center of a conducting spherical shell, and a total charge of +6.35 ìC is placed on the shell itself. Calculate the total charge on the outer surface of the conductor.
Sunday, February 1, 2015 by RB

Physics
1) If = 2.0 cm, due E and = 5.0 cm, due W Determine: a) R = -A + 2B b) V = - 2A - B c) F = 3A - B My Answers R= 8, V= -1, F= 1 Is this correct and how do you know when direction it's going to be?
Sunday, February 1, 2015 by Sam

Physics
Suppose you have a 5nC charge T the origin and a 2nC charge at x=5m. Find the location on the x axis where the electric field is 0. (Find finite coordinate location)
Sunday, February 1, 2015 by Macy

physics
A block of mass 3.17 kg is hanging from a rope. The tension in the rope is 12.9 N, pulling upward on the block. What is the magnitude and direction of the acceleration of the block?
Sunday, February 1, 2015 by Emily

Physics
A(n) 0.42 kg softball is pitched at a speed of 12 m/s. The batter hits it back directly at the pitcher at a speed of 27 m/s. The bat acts on the ball for 0.016 s. What is the magnitude of the impulse imparted by the bat to the ball? Answer in units of N · s. What is the...
Sunday, February 1, 2015 by Monica

Physics
A projectile is launched with an initial speed V0. At its highest point, the projectile's speed is V0/2 . What was the launch angle above the horizontal? (in deg)
Sunday, February 1, 2015 by Tanner

Physics
A place kicker must kick a football from a point 35.0 m (= 38.3 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 19.8 m/s at an angle of 45.0o to the horizontal. By how much does the ball ...
Sunday, February 1, 2015 by Madison

Physics
A projectile is launched with an initial speed . At its highest point, the projectile's speed is . What was the launch angle above the horizontal? (in deg)
Sunday, February 1, 2015 by Madison

Physics
Eddie the Eagle, British Olympic ski jumper, is attempting his most mediocre jump yet. After leaving the end of the ski ramp, he lands downhill at a point that is displaced 62.2 m horizontally from the edge of the ramp. His velocity just before landing is 29.0 m/s and points ...
Sunday, February 1, 2015 by Tanner

Physics
A golfer, standing on a fairway, hits a shot to a green that is elevated 5.50 m above the point where she is standing. The ball leaves her club at an angle of 37.0° above the ground, with a speed of 31.1 m/s. Find the time that the ball is in the air before it hits the ...
Sunday, February 1, 2015 by Tanner

physics
A 25 kg cannon ball is fired from a cannon with muzzle speed of 1520 m/s at an angle of 35.5 ◦ with the horizontal. The acceleration of gravity is 9.8 m/s 2 . Use conservation of mechanical energy to find the maximum height reached by first ball. Answer in units of m. I ...
Sunday, February 1, 2015 by keegan

physics
a car has a mass of 820 kg. It starts from rest and travels 41 m in 3.0s. What is the net force applied to the car?
Sunday, February 1, 2015 by none

physics
A 130 cm length of string has a mass of 3.94 g. It is stretched with a tension of 8.60 N between fixed supports. What is the wave speed for this string?
Sunday, February 1, 2015 by hayley

physics
You are constructing a mobile out of 5 identical toy helicopters, each of mass m = 25.3 g, 4 identical sticks (each length l = 21.2 cm, and negligible mass), and thin string of negligible mass. The distance from the left-hand side of each stick to the attachment point of the ...
Sunday, February 1, 2015 by BK

physics
a particle is subjected to two displacement as follows: 30m to the northeast and 40m to northwest. what must be third displacement if the particle is to end up at the starting point
Sunday, February 1, 2015 by raph

physics
The effective k of the diving board shown here is 1675 N/m. A heavy diver is bouncing up and down at the end of the diving board. With what frequency does he bounce up and down? How long does it take for him to complete one bounce (up and down)? What is the mass of the man? I ...
Sunday, February 1, 2015 by Alexis

Physics
You are given two unknown point charges, Q1 and Q2. At a point on the line joining them, one-third of the way from Q1 to Q2 the electric field is zero . What is the ratio Q1/Q2?
Sunday, February 1, 2015 by Anonymous

Physics
A spring fixed to a wall is attached to a 6 kg block of wood on the other end. The block rests on a frictionless surface. The spring with spring constant 100 N/m is compressed by 0.1 m and releases. With what frequency and period will the block/spring system oscillate? -I drew...
Sunday, February 1, 2015 by Sarah

physics
Imagine a grandfather clock. When the clock swings all the way to the right it 'ticks', when it swings all the way to the left it 'rocks'. If you wanted the time between the tocks and ticks, what length should the pendulum be? And, if you took the pendulum to ...
Sunday, February 1, 2015 by Sarah

physics
A friend plays an A note (440 Hz) on her piccolo while running towards you at 40 m/s. What frequency do you hear just before she runs into you? -I am not sure where to start on this problem. I wrote down the givens: fs=440 hz, vs=40 m/s, v=343 m/s. and I'm trying to solve ...
Sunday, February 1, 2015 by Sarah

Physics
In a particular crash test, an automobile of mass 1295 kg collides with a wall and bounces back off the wall. The x components of the initial and final speeds of the automobile are 25 m/s and 1.5 m/s, respectively. If the collision lasts for 0.11 s, find the magnitude of the ...
Sunday, February 1, 2015 by Kevin

physics
A(n) 0.42 kg softball is pitched at a speed of 12 m/s. The batter hits it back directly at the pitcher at a speed of 27 m/s. The bat acts on the ball for 0.016 s. What is the magnitude of the impulse imparted by the bat to the ball? Answer in units of N · s. 011 (part 2...
Sunday, February 1, 2015 by Kev

Physics
A cannonball is shot upwards with a total velocity of 61.0 m/s at an angle of 45 degrees from the horizontal. What will its total velocity be when it has moved 345 m horizontally from where it started?
Sunday, February 1, 2015 by Brittany

physics
A swimmer can swim 1.7 mph in still water. She decides to swim upsteam against the current which is 0.7 mph. It will take the swimmer ___ hours to travel 8 miles as measured by a person standing on the river bank.
Sunday, February 1, 2015 by diana

physics
A hammer falls from a scaffold on a building 50.0 m above the ground. Find its speed as it hits the ground.
Sunday, February 1, 2015 by Anonymous

Physics
Riding in an elevator, a man notices that he feel heavier or lighter based when the elevator speeds up or slows down. He stands on a bathroom scale in the elevator to take some measurements. Assume that his mass is 85 kg. a. What is this man’s weight while at rest? b. ...
Sunday, February 1, 2015 by Madison

physics
Using the following number: 26,802 In 4 significant figures, this number would be Answer. In 3 significant figures, this number would be Answer. In 2 significant figures, this number would be Answer. In 1 significant figure, this number would b
Sunday, February 1, 2015 by diana

PHYSICS
without air resistance maximum range of projectile is obtained with an angle of ???? Can you please fill in the blank THANK YOU
Sunday, February 1, 2015 by greoge

physics
a projectile with a horizontal component of 13m/s and a vertical component of 18 m/s would have an overall velocity of m/s??? at and angle of ?? above the horizontal. Can you please help me fill in the two blanks thank you
Sunday, February 1, 2015 by greoge

physics
a copper cylinder has a radius of 2.5 cm and a length of 5.6 cm at 20 degree Celsius. The rod is heated until its temperature is 85 degree Celsius. Find the density at 85 degree Celsius.
Sunday, February 1, 2015 by Vans

physics
Water is lifted from a well of depth 50m. If mass of water is 20kg and that of the rope is 0.2kg per metre the amount of work done is
Sunday, February 1, 2015 by simar

Physics
A 6.5-kg bowling ball thrown with a speed of 5.4 m/s hits a stationary 1.75-kg pin. What is the velocity of each object? Assume that the coefficient of restitution is 0.75.
Sunday, February 1, 2015 by Joanna

Physics
Particles of charge +65, +48, and −95 μC are placed in a line. The center one is L = 60cm from each of the others.Calculate the net force on the left charge due to the other two.
Saturday, January 31, 2015 by Mary

Physics
In the picture to the right, a ring pulls a box of mass m = 5.0 kg across a level table. The string pulls with a tension F = 25.0 N at an angle θ = 25˚ above the horizontal. A frictional force of 4.0 N also acts on the box. Calculate a. the normal force on the box. b...
Saturday, January 31, 2015 by Madison

Physics
A bird sits at rest in the middle of a wire. The wire slopes upward at 5* from the horizontal on either side of the bird. If the wire on both sides of the bird is experiencing a tension force of 106 N, then what is the mass of the bird?
Saturday, January 31, 2015 by Madison

physics
An athlete performing a long jump leaves the ground at a 27.1∘ angle and lands 7.72m away 1.What was the takeoff speed? 2.If this speed were increased by just 5.0%, how much longer would the jump be?
Saturday, January 31, 2015 by Kelly

physics II
A rocket is launched vertically from ground with a constant acceleration. If the rocket emits a burst of sound every five seconds after launching, find the difference of intensity levels observed at the launching site for the first and the second bursts of sound.
Saturday, January 31, 2015 by ANA

Physics II
Please can anyone explain. Thank you. A rocket is launched vertically from ground with a constant acceleration. If the rocket emits a burst of sound every five seconds after launching, find the difference of intensity levels observed at the launching site for the first and the...
Saturday, January 31, 2015 by ANA

Physics
the charge on a pith ball was measured as +40 nC. if the charge on an electron is -1.6 x 10^-19, how many electrons have been added or removed from the ball?
Saturday, January 31, 2015 by Elena

Physics
The space shuttle is in a 3e+5 m high orbit over the earth. The radius of the earth is 6.37e+6 m, the mass of the earth is 5.98e+24 kg. What is the distance from the center of the earth to the space shuttle? I don't know whether I would double the radius and the add the ...
Saturday, January 31, 2015 by Carly

Pure math,Life science,Geography and History
Hi I'm grade10 and I was wondering if you's could help Me to get a career examples after matric because my school took away our Physics for unknown reasons so insted of Physics or another subject that would help you in the future they gave us History please help me ...
Saturday, January 31, 2015 by Zenande Snyman

physics
Three point charge are located at a line 20cm with charge q1= -3uC, q2= +4uC, q3= -7uC. Determine the magnitude of the force.
Saturday, January 31, 2015 by ama

Physics
Three people pull simultaneously on a stubborn donkey. Jack pulls eastward with a force of 68.5 N, Jill pulls with 61.3 N in the northeast direction, and Jane pulls to the southeast with 111 N. (Since the donkey is involved with such uncoordinated people, who can blame it for ...
Saturday, January 31, 2015 by Jordan

Physics
Ali and hid father sit at the ends of a see-saw, 2 m from the pivot, as shown in figure 5.12. Where should ali's mother sit in order to balance the see-saw?
Friday, January 30, 2015 by Fiesta

Physics
Two point charges Q1=-6.80nC and Q2 = -5.80nC are separated by 33.0cm. What is potential energy of the pair? Answer in units of Joules.
Friday, January 30, 2015 by Emily

Physics
Ali and his father sit at the ends of a see-saw, 2 m from the pivot, as shown in figure 5.12. Where should ali's mother sit in order to balance the see-saw?
Friday, January 30, 2015 by Fiesta

Physics
An object in space is initially stationary relative to the Earth. Then, a force begins acting on the object, starting with a force of 0 N, and increasing at a uniform rate until the magnitude of the force is 56 N after the force has acted for 10 s. The body has a mass of 15 kg...
Friday, January 30, 2015 by Kev

Physics
A cheetah is hunting. Its prey runs for 2.88 s at a constant velocity of +8.93 m/s. Starting from rest, what constant acceleration must the cheetah maintain in order to run the same distance as its prey runs in the same time? (Give the magnitude of the acceleration
Friday, January 30, 2015 by Grayson

Physics
A Boeing 747 "Jumbo Jet" has a length of 55.9 m. The runway on which the plane lands intersects another runway. The width of the intersection is 24.0 m. The plane decelerates through the intersection at a rate of 5.61 m/s2 and clears it with a final speed of 43.3 m/s...
Friday, January 30, 2015 by Grayson

Physics
A bullet is fired through a wooden board with a thickness of 12.0 cm. The bullet hits the board perpendicular to it, and with a speed of +370 m/s. The bullet then emerges on the other side of the board with a speed of +333 m/s. Assuming constant acceleration (rather, ...
Friday, January 30, 2015 by Grayson

physics
A ball is dropped from an upper floor, some unknown distance above your apartment. As you look out of your window, which is 1.5 m tall, you observe that it takes the ball 0.18 seconds to traverse the length of the window. Determine how high above the top of your window the ...
Friday, January 30, 2015 by ryan

physics
a) Determine the capacitance, in pF, of a paper-filled parallel-plate capacitor (dielectric constant=3.70) having a plate area of 5.40cm2 and plate separation of 590 µm. Use 8.85 x 10-12 F/m for εo, the permittivity of free space. For this I got 2998.53x10-2 b) ...
Friday, January 30, 2015 by Amanda

physics
Determine the capacitance, in pF, of a paper-filled parallel-plate capacitor (dielectric constant=3.70) having a plate area of 5.40cm2 and plate separation of 590 µm. Use 8.85 x 10-12 F/m for εo, the permittivity of free space
Friday, January 30, 2015 by Amanda

physics
A capacitor is rolled from two strips of aluminum separated by two strips of paraffin-coated paper. Each strip is 5.40cm wide. The foil is 7.00μm thick, and the paper is 50.0μm thick. What length, in cm, should the strips be if a capacitance of 24.0nF is desired? Use...
Friday, January 30, 2015 by Anne

physics
A jet plane lands in an airport with a speed of 125 m/s and can accelerate uniformly at a maximum rate of -9.8 m/s2 as it comes to rest. What should be the minimum length of the runway so that the jet plane can land in the airport safely?
Friday, January 30, 2015 by james

physics
A bowling ball with a mass of 4.5 kg travels at a velocity of 37 m/s for 2.5 s until it is stopped at the end of the lane by the ball return. What additional information is required to determine the weight of the bowling ball? A. the amount of friction from the bowling lane ...
Friday, January 30, 2015 by Anonymous

Physics
A 1800 kg mass car is traveling south at a velocity of 15 m/s through an intersection. It is hit by a 3500 kg mass car traveling east at 20 m/s. If the two cars collide and become one object (perfectly inelastic). What will be the final displacement of the cars after the ...
Friday, January 30, 2015 by Clara

Physics
A 5 gram bullet is fired into a 7 kg ballistic pendulum suspended vertically from the ceiling. If the bullet embeds into the block and the two move as one to a new final height of 12 cm. What was the initial velocity of the bullet before impacting the pendulum?
Friday, January 30, 2015 by Clara

Physics
In raising the steel mass 6.0m, the electric motor uses more energy than that calculated in (a)(i). Write down and explain two causes of this higher energy requirement.
Friday, January 30, 2015 by Timber

Physics
A 50 kg satellite circles the earth in an orbit with a period of 110 min. What minimum energy E is required to change the orbit to one with a period of 320 min? Assume both the initial and final orbits are circular. The Earth’s radius is 6.37 × 10^6 m, its mass is 5...
Friday, January 30, 2015 by Steven

physics
The equation of a SHM of a 600 g object is given as x = 0.45 cos 6.4 t where the displacement x is in meters and time in seconds. What is the total energy of the system?
Friday, January 30, 2015 by ll

Science:Physics
Nilo drives is van with an average velocity of 45.0 km/h along the North Expressway. How long will it take him to drive 350 km on a perfectly straight highway
Friday, January 30, 2015 by Patrick

physics
At the instant the traffic light turns green, an automobile that has been waiting at an intersection starts ahead with a constant acceleration of 2.10m/s2 . At the same instant, a truck, traveling with a constant speed of 15.1m/s , overtakes and passes the automobile. How far ...
Thursday, January 29, 2015 by david

Physics
A hollow metal sphere has inner and outer radii of 20.0 cm and 30.0 cm, respectively. As shown in the figure, a solid metal sphere of radius 10.0 cm is located at the center of the hollow sphere. The electric field at a point P, a distance of 15.0 cm from the center, is found ...
Thursday, January 29, 2015 by Matt

physics
A juggler tosses a ball h = 2 m into the air with one hand and catches it with the other hand at the same level. Neglecting air resistance, how long is the ball in the air?
Thursday, January 29, 2015 by chris

physics
A +1.4-nC point charge is placed at one corner of a square (1.8 m on a side), and a -2.5-nC charge is placed on the corner diagonally opposite. What is the magnitude of the electric field at either of the other two corners?
Thursday, January 29, 2015 by Matt

physics
Two point charges are placed at two of the corners of a triangle (Take q1 = -10.2 µC, and q2 = 16.3 µC.) Find the magnitude and the direction of the electric field at the third corner of the triangle.
Thursday, January 29, 2015 by Sam

physics
An owl is carrying a mouse to the chicks in its nest. Its position at that time is 4.00 m west and 12.0 m above the center of the 30.0 cm diameter nest. The owl is flying east at 3.50 m/s at an angle 30.0º below the horizontal when it accidentally drops the mouse. Is the ...
Thursday, January 29, 2015 by kaval

physics
A skier of mass 74.6 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 63.3 m up a 39.0◦ slope (assumed to be frictionless) at a constant speed of 2.0 m/s? The acceleration of gravity is 9.81 m/s 2 . Answer in units of J
Thursday, January 29, 2015 by paula

physics
Each vertical steel column of an office building supports a weight of 1.30 x 10^5 N and is compressed to 5.90 x 10^-3 A) Find the compression in each column if a wegith of 5.50 x 10^5 N is supported. B)If the compression of each steel column is 0.0710 cm, what wight is ...
Thursday, January 29, 2015 by Jonathan Camper

Physics 201
A person desires to reach a point that is 2.87 km from her present location and in a direction that is 47.5° north of east. However, she must travel along streets that are oriented either north-south or east-west. What is the minimum distance she could travel to reach her ...
Thursday, January 29, 2015 by Anonymous

URGENT PHYSICS
Consider a case in which a 60 kg diver takes off from a diving board located at a height of 10 m above the water level and enters the water at a horizontal distance of 5 m from the end of the board. If the total time that the diver remains in the air is 2.5 seconds, determine ...
Thursday, January 29, 2015 by Anonymous

physics
boy throws a penny into an empty well with an initial velocity of –2 m/s. He hears it hit the bottom 8 seconds later. About how far did the penny fall?
Thursday, January 29, 2015 by Anonymous

Physics
A lobsterman’s buoy is a solid wooden cylinder of radius r and mass M. It is weighted at one end so that it floats upright in calm sea water, having density. A passing shark tugs on the slack rope mooring the buoy to a lobster trap, pulling the buoy down a distance x from...
Thursday, January 29, 2015 by Rachel

physics
An electron moving parallel to x axis has an initial speed of 2.51x106 m/s at the origin.Its speed is reduced to 1.76x105 m/s at the point x=3.12 cm. Calculate the potential difference, in Volts, between the origin and that point.
Thursday, January 29, 2015 by Amy

Physics
This deals with Projectile Motion and I would be glad if someone were to check if my answers are correct. 1. c 2. b 3. a 4. d If air resistance were to be ignored, 1.a projectile that has a horizontal velocity is a)zero b)constant c)increasing d)decreasing 2.a projectile that ...
Thursday, January 29, 2015 by Jenice

physics
What potential difference is needed to stop an electron having an initial speed of 3.70x 105 m/s? Answer in volts
Thursday, January 29, 2015 by Allie

Physics
Suppose you have a 3 C charge at (1,0) m and a -3 C charge at (-1,0) m. Find (a) the electric field at the point (0,3), and (b) the electric force on a charge of 3 nC placed at (0,3).
Thursday, January 29, 2015 by Macy

Physics
A man in search of his dog drives first 13.3 mi northeast, then 17.3 mi straight south, and finally 6.85 mi in a direction 30.3° north of west. a) What is the magnitude of his resultant displacement? b) What is the direction of his resultant displacement? Express your ...
Thursday, January 29, 2015 by Stacy

Physics
A 50 cm diameter wheel rotates through 25 radians. How do I figure out the amount of distance it will move?
Thursday, January 29, 2015 by Anna

Need Help Physics
The captain of a boat wants to travel directly across a river that flows due east with a speed of 1.09 m/s. He starts from the south bank of the river and wants to reach the north bank by travelling straight across the river. The boat has a speed of 6.44 m/s with respect to ...
Thursday, January 29, 2015 by Anonymous

Physics Help
During a long airport layover, a physicist father and his 8-year-old daughter try a game that involves a moving walkway. They have measured the walkway to be 41.5 m long. The father has a stopwatch and times his daughter. First, the daughter walks with a constant speed in the ...
Thursday, January 29, 2015 by Anonymous

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Homework Help: Science