Tuesday
July 22, 2014

Search: Calculus - average velocity

Number of results: 31,170

calculus and physics
An explosion causes debris to rise vertically with an initial velocity of 75 ft/sec. a. In how many seconds does it attain maximum height? b. What is the maximum height? c. What is the speed of the debris as it reaches 12 ft on the way back to the ground? d. What is the ...
October 1, 2012 by olivia

Calculus
A cruise ship's captain sets the ship's velocity to be 26 knots at a heading of 080 degrees. The current is flowing toward a bearing of 153 degrees at a speed of 8 knots. What is the ground velocity of the cruise ship?
May 2, 2010 by Bobby

Calculus
a particle starts at time t = 0 and moves along the x axis so that its position at any time t>= 0 is given by x(t) = ((t-1)^3)(2t-3) a.find the velocity of the particle at any time t>= 0 b. for what values of t is the velocity of the particle negative? c. find the value ...
September 10, 2009 by Lauren

Physics
The earth moves around the sun in a nearly circular orbit of radius 1.50 x 1011 m. During the three summer months (an elapsed time of 7.89 x 106 s), the earth moves one-fourth of the distance around the sun. (a) What is the average speed of the earth? (b) What is the magnitude...
September 7, 2013 by WR

Physics
A car is stopped at a traffic light. It then travels along a straight road so that its distance from the light is given by x(t) = bt2 - ct3, where b = 2.60 m/s2 and c = 0.150 m/s3. (a) Calculate the average velocity of the car for the time interval t = 0 to t = 8.0 s. m/s (b) ...
February 4, 2011 by Anonymous

Physics
The velocity vefot of a ball is v(t)=-3x+4y at any time. Its initial position is r=12x-4y. The components of the velocity vector are in m/s and the components of the position vector are in meters. The symbols x and y are the unit vetors in x and y directions respectively. Find...
September 26, 2010 by Sarah

Physics - final velocity?
At sea level, a hydrogen molecule in the air has an average kinetic energy of 5.5310-21 J. Its mass is 3.3210-27 kg. The hydrogen molecule shoots straight up without colliding with the molecules in the air. (Assume that you can use g = 9.81 m/s2; although well see in ...
February 12, 2011 by Em

calculus
A mass on a spring vibrates horizontally on a smooth level surface. Its equation of motion is x(t)=8sint, where t is in seconds and x in centimeter. a. Find the velocity and acceleration at time t b. Find the position, velocity, and acceleration of the mass at time t=2pi/3. In...
October 4, 2011 by bob

calculus
g(t)=2+cos t; [0,pi] Can you help me find the average rate of change of the function over the given interval?
January 20, 2011 by Kelly

pre-calculus
suppose g(t)=kf(t). Find the average rate of change of g over the interval [a,b] in terms of f
March 17, 2011 by Olivia

calculus
find the average value of the function f(x,y)=xe^y over the plane region R is the triangle with vertices (0,0), (1,0) and (1,1)
April 2, 2012 by mabel

calculus
find the average value of the function f(x,y)=xe^y over the plane region R is the triangle with vertices (0,0), (1,0) and (1,1)
April 5, 2012 by Anonymous

calculus
find the average value of the function f(x,y)=e^(-x^2) over the plane region R which is the triangle with vertices (0,0), (1,0) and (1,1)
June 12, 2012 by soffy

pre calculus
find the average rate of change of f(x)=x^3-5x+3: a. from -6 to -3 b. from -1 to 2 c. from 2 to 8 I am so lost, can someone please show me how to do this?
March 27, 2013 by courtney

Calculus
There are 50 apple trees in an orchard, and each tree produces an average of 200 apples each year. For each additional tree planted within the orchard, the average number of apples produced drops by 5. What is the optimal number of trees to plant in the orchard? I mostly need ...
March 25, 2014 by Q

Calculus
A projectile is launched at an angle of 60 degrees to the horizontal from 6.5 ft above the ground at an initial speed of 150ft/sec. Assume the x-axis is horizontal, the positive y-axis is vertical (opposite g), the ground is horizontal, and only the gravitational force acts ...
March 9, 2011 by Z32

Physics
It takes you 9.5min to walk with an average velocity of 1m/s to the north from the bus stop to the museum entrance. What is your displacement?
September 10, 2009 by Anthony Smith

Ap Chem
At 200K, the particles of gas X have an average velocity equal to that of Argon at 400K. What is the identity of X? He CO HF HBr F2
October 18, 2010 by suzan

physic
If you run a complete loop around an outdoor track(400m), in 100 second,what is your average velocity?
July 12, 2011 by syida

science
It take you 9.5 min to walk with an average velocity of 1.2 m/s to the north from the bus stop to the museum entrance. What is your displacewment?
September 11, 2011 by Chris

physics
a race car's velocity increases from 4 m/s time interval, its average acceleration would be 10 m/s2 ? true or false ?
February 28, 2012 by Anonymous

physics
if a race car's velocity increases from 4 m/s to 36 m/s over a 4 s time interval, its average acceleration would be 10 m/s 2 ? IS THIS TRUE ?
March 1, 2012 by Anonymous

Physica
The position of a particle is given by equation X(t)=2t^2 where t in second and X in metere. The average velocity during time interval from t=1 s to t=5 s is.......
July 11, 2012 by Q2

Physics
It takes you 10min to walk with an average velocity of 1.2m/s to the north from the bus stop to the restaurant entrance. What is your displacement?
September 16, 2013 by Abdullah

physics
Calculate the average velocity for a remote controlled vehicle that starts with a speed of 1.0 m/s [forward] and then accelerates at 0.08 m/s2 [backward] for 4.0 s.
June 3, 2014 by grey

physics
Calculate the average velocity for a remote controlled vehicle that starts with a speed of 1.0 m/s [forward] and then accelerates at 0.08 m/s2 [backward] for 4.0 s.
June 6, 2014 by grey

calculus
The height (in feet) attained by a rocket t seconds into flight is giving by the function h(t)= -1/3t^3 + 16t^2 + 33t + 10 When is the rocket rising? When is the rocket decreasing? when does it reach its maximum height above the ground? what is the maximum height? what is the ...
November 30, 2011 by chris

Physics (Velocity in two dimensions)
Please help, The displacement vector for a 15.0 second interval of a jet airplane's flight is (3850, −2430) m. (a) What is the magnitude of the average velocity? (b) At what angle, measured from the positive x axis, did the airplane fly during this time interval? Express...
February 21, 2013 by Kathy

Physics (Velocity in two dimensions)
Please help: The displacement vector for a 15.0 second interval of a jet airplane's flight is (3850, −2430) m. (a) What is the magnitude of the average velocity? (b) At what angle, measured from the positive x axis, did the airplane fly during this time interval? Express...
February 21, 2013 by Kathy

Calcuslus-Calculus-Calculus
A rocket arises from its launching pad with a velocity given. By 0.1 h m/s ,where h m is the height reached by the rocket at that time.the rocket is obserrvved from 2000 m away from the launch pad.at. What rate is the distance of the roocket from observer channging when the ...
March 16, 2011 by Mehak

Physics
A dock worker applies a constant horizontal force of 79.0 N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves 11.0 m in the first 6.00 s. What is the mass of the block of ice? Work done = final kinetic ...
September 19, 2006 by Veronica

Calculus!
What is the velocity of an object dropped from a height of 350 m when it hits the ground?
September 21, 2007 by ali

ENG102
Question 1. A car moves 26 km due east then 14 km due north. It then turns along a path running north-east with 15 km, then 17 km due west. If the time for the entire journey is 2 hrs, Find; (a) the cars average speed in m/s (b) the cars average velocity in km/h . SOLVE THIS...
May 1, 2012 by DESMOND

Re: PHYSICS
"Relative" is an important word. Block L of mass mL = 1.90 kg and block R of mass mR = 0.500 kg are held in place with a compressed spring between them. When the blocks are released, the spring sends them sliding across a frictionless floor. (The spring has negligible mass and...
February 27, 2007 by COFFEE

Physics 141
A snowmobile moves according to the velocity-time graph shown in the drawing. What is the snowmobile's average acceleration during each of the segments A, B, and C? The scale for the time axis is 100 s per increment, and the scale for the velocity axis is 110 m/s per increment.
January 30, 2014 by Hope

physics
A 0.45 kg soccer ball approaches a player horizontally with a velocity of magnitude equal to 35 m/s. The player heads the ball straight back out horizontally, and the magnitude of the balls velocity after the collision is 40 m/s. The contact time between their head and the ...
July 12, 2012 by Jessica

Calculus
for f(x)=-x^2 +1, which value is the largest magnitude? a) average rate of change from x=-1 to x=1 b) instanteneuous rate of change at x=3 c) instanteneous rate of change at x=0 average rate of change from x=-4 to x=0
July 4, 2012 by g

Physics
A cat rides a merry-go-round turning with uniform circular motion. At time t1 = 2.00 s, the cat's velocity is (3.00 m/s) + (2.70 m/s) , measured on a horizontal xy coordinate system. At t2 = 5.90 s, its velocity is (-3.00 m/s) + (-2.70) . What are (a) the magnitude of the cat'...
September 13, 2010 by Antonio

Physics
A cat rides a merry-go-round turning with uniform circular motion. At time t1 = 1.80 s, the cat's velocity is (3.60 m/s)i + (2.00 m/s)j , measured on a horizontal xy coordinate system. At t2 = 5.70 s, its velocity is (-3.60 m/s)i + (-2.00)j . What are (a) the magnitude of the ...
February 23, 2011 by leo

Physics
A snowmobile moves according to the velocity-time graph shown in the drawing. What is the snowmobile's average acceleration during each of the segments A, B, and C? The scale for the time axis is 60 s per increment, and the scale for the velocity axis is 270 m/s per increment.
May 29, 2013 by James

physics
Model rocket engines are sized by thrust, thrust duration, and total impulse, among other characteristics. A size C5 model rocket engine has an average thrust of 5.26 N, a fuel mass of 12.7 g, and an initial mass of 25.5 g. The duration of its burn is 1.90 s. (a) What is the ...
October 7, 2008 by tom

Physics
A pitcher throws a curveball that reaches the catcher in 0.55 s. The ball curves because it is spinning at an average angular velocity of 335 rev/min (assumed constant) on its way to the catcher's mitt. What is the angular displacement of the baseball (in radians) as it ...
March 13, 2007 by Mary

physics
car accelerates from 0 to 60 mi/hr in a time of 5.8 secs. a. What is the acceleration of car in m/s squared? need help setting up the problem, thanks acceleration = (speed change)/(time interval) To get the answer in m/s^2, the speed change of 60 mi/hr must first be converted ...
September 4, 2006 by mitch

calculus
use a(t) = -32 ft per second squared as the acceleration due to gravity.An object is thrown vertically downward from the top of a 480-ft building with an initial velocity of 64 feet per second. With what velocity does the object hit the ground? This type of problem always ...
February 21, 2010 by sammi

Calculus
Find the average value over the given interval. y=3x^5; [-3,3] I can't seem to get the answer, 0. 1/(3+3) [integral -3 to 3 (3x^5)dx] and I get 273/2
January 24, 2008 by Anonymous

Calculus
Find the average value of the function on the given interval: f(x)=cos(16x), [0,pi/2] The answer I got is 1.
January 27, 2010 by <3

Calculus
Find (1) marginal and (2)the average functions for the following total function. Evaluate them at Q=3 and Q=5 π=q^2+13q+78
November 21, 2012 by Rae

physics
A snowmobile moves according to the velocity-time graph shown in the drawing. What is the snowmobile's average acceleration during each of the segments A, B, and C? The scale for the time axis is 30 s per increment, and the scale for the velocity axis is 50 m/s per increment.
January 31, 2014 by Anonymous

Calculus
An object is moving along the parabola y = 3x^2. (a) When it passes through the point (2,12), its horizontal velocity is dx/dt = 3. What is its vertical velocity at that instant? (b) If it travels in such a way that dx/dt = 3 for all t, then what happens to dy/dt as t --> +...
October 18, 2009 by John

Calculus
An object is moving along the parabola y = 3x^2. (a) When it passes through the point (2,12), its horizontal velocity is dx/dt = 3. what is its vertical velocity at that instant? (b) If it travels in such a way that dx/dt = 3 for all t, then what happens to dy/dt as t --> +...
October 18, 2009 by John

calculus
An object is moving along the parabola y = 3x^2. (a) When it passes through the point (2,12), its horizontal velocity is dx/dt = 3. what is its vertical velocity at that instant? (b) If it travels in such a way that dx/dt = 3 for all t, then what happens to dy/dt as t --> +...
October 18, 2009 by John

Math Calculus
Economists use production functions to describe how output of a system varies with another variable such as labour or capital. For example, the production function P(L) = 200L + 10L^2 - L^3 goves the output of a system as a function of the number of labourers. The average ...
October 21, 2011 by Assignment6

physics (momentum)
A 3 kg ball with an initial velocity = (4.00i + 3.00j)m/s collides with a wall and rebound with a final velocity = (-4.00i + 3.00j)m/s. The ball is in contact with the wall for delta t =2.00E-3s. (specify answers with unit vectors) a) what is the change in the ball's momentum...
April 3, 2007 by Jay

phys
An airplane is heading due south at a speed of 590 km/h. If a wind begins blowing from the southwest at a speed of 65.0 km/h (average). Calculate magnitude of the plane's velocity, relative to the ground. Calculate direction of the plane's velocity, relative to the ground. ...
September 15, 2009 by physics

physics
what is the formula for finding the magnitude of average acceleration simplified into length, velocity, time, and delta units?
July 9, 2008 by Gwen

physics
If your initial speed was 19 , and you were heading due west, what was your average velocity during braking? Assume constant deceleration
January 23, 2010 by hailey

velocity and acceleration
its 20 000km from manchester to sydney australia the rocketdoes the journey in 4 hours. whats the average speed for the trip in m/s?
August 5, 2010 by jerry.

science
Simpson drives his car with an average velocity of 48.0 km/h to the east. How long will it take him to drive 144 km on a straight highway?
September 11, 2011 by Chris

physics
It takes you 9.5 minutes to walk with an average velocity of 1.2 m/s to the north form the bus stop to the museum entrance. What is your displacement?
January 24, 2012 by alessa castillo

physics
a race car's velocity increases from 4 m/s to 36 m/s over a 4s time interval, its average acceleration would be 10 m/s2 true or false ?
February 28, 2012 by Anonymous

Physics
How much time would Simpson save by in- creasing his average velocity to 65.8 km/h to the east? Answer in units of min
October 1, 2013 by alison

AP calculus AB
A spy tracks a rocket through a telescope to determine its velocity. The rocket is traveling vertically from a launching pad located 10 km away. At a certain moment, the spy's instruments show that the angle between the telescope and the ground is equal to pi/3 and is changing...
December 29, 2010 by jennifer

Probability and statistics
5. The probabilities that the lifetime of a randomly chosen device is below average, average, above average are respectively 0.2, 0.5, and 0.3. The probability that the 3 randomly chosen devices lifetimes of 2 are above average and 1 below average equals Choose one answer a. 0...
March 2, 2012 by Arun

Calculus
The velocity v(t)= -t^2 + 6t - 8, find the displacement and distance traveled during the time interval [-1,5]?
December 11, 2009 by Z32

calculus
Consider a car whose position, s, is given by the table t(s) s(ft) 0 0 .2 0.35 .4 1.8 .6 3.8 .8 6.5 1 9.6 Estimate the velocity at t=0.2
January 24, 2011 by Laurin

Pre -calculus
An observer 2 km from the launching pad observes a vertically ascending missile at an angle of elevation of 21 degrees. 5 seconds later the nagle has increased to 35 degrees. What was its average speed during this interval? If it keeps going vertically at the same average ...
December 5, 2010 by H

Math
An airplane is heading due south at a speed of 590km/h. If a wind begins blowing from the southwest at a speed of 65.0km/h (average). Calculate magnitude of the plane's velocity, relative to the ground. Calculate direction of the plane's velocity, relative to the ground. ...
September 12, 2009 by Anne

physics
The Pacific Crest Trail runs from the Mexican border to the Canadian border through California, Oregon, and Washington,covering 2650 miles of trail, but only about 1000 straight-line miles. B).If you hike this trail in 14.0 weeks, from Mexico to Canada,find your average ...
January 26, 2011 by mely

statistics
Employees are evaluated as below average, average, or above average. What level of measurement is this? a. nominal b. ordinal c. interval d. ratio
June 19, 2011 by Anonymous

calculus
A rock is thrown off of a 100 foot cliff with an upward velocity of 45 m/s. As a result its height after t seconds is given by the formula: h(t)= 100+45t-5t^2 The height after 6 seconds is 190 What is the velocity after 6 seconds?
January 25, 2013 by Anonymous

Calculus
A rock is thrown off of a 100 foot cliff with an upward velocity of 45 m/s. As a result its height after t seconds is given by the formula: h(t)= 100+45t-5t^2 The height after 6 seconds is 190 What is the velocity after 6 seconds?
January 25, 2013 by Anonymous

physics
River A & B flow into river C. River A is 40 ft wide and is flowing at an average of 2.47 mph. River B is 25 ft wide and has a flow rate of 1125 cubic feet per second. Assume all rivers have a uniform depth of 15 ft. If river C is 100 ft wide, what is its average velocity [...
October 19, 2011 by Brian

Physics
Physics Homework _____________________________________________________________ 1.) A particle at t 1 = -2.0 s is at x 1 = 3.4 cm and at t 2 = 4.5 s is at x2 = 8.5 cm. What is its average velocity? Can you calculate its average speed from this data? ...
July 20, 2008 by Ruby

physics
The position of a particle moving along an x axis is given by x = 15t2 - 2.0t3, where x is in meters and t is in seconds. (a) Determine the position, velocity, and acceleration of the particle at t = 3.0 s. x = m v = m/s a = m/s2 (b) What is the maximum positive coordinate ...
December 14, 2008 by help

physics
A 48.0 kg child is stationary in the middle of an ice rink (no friction). A 0.750 kg football is thrown with a velocity of 21.2 m/s moving eastward. The child catches the ball and together they slide off in the eastward direction with a velocity of 0.326 m/s. Take east to be ...
July 16, 2013 by ODU

Physics
A stream of water strikes a stationary turbine blade, as the drawing illustrates. The incident water stream has a velocity of +18.0 m/s, while the exiting water stream has a velocity of -18.0 m/s. The mass of water per second that strikes the blade is 73.0 kg/s. Find the ...
November 29, 2007 by Demetrius

PHYSICS
A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The incident water stream has a velocity of +18.0 m/s, while the exiting water stream has a velocity of -18.0 m/s. The mass of water per second that strikes the blade is 69.0 kg/s. ...
October 21, 2010 by ZAC

Physics
A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The incident water stream has a velocity of +18.0 m/s, while the exiting water stream has a velocity of -18.0 m/s. The mass of water per second that strikes the blade is 36.0 kg/s. ...
November 12, 2012 by Anonymous

physics
A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The incident water stream has a velocity of + 17.4 m/s, while the exiting water stream has a velocity of 15.0 m/s. The mass of water per second that strikes the blade is 33.6 kg/s...
January 30, 2014 by ben

physics
A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The incident water stream has a velocity of + 17.4 m/s, while the exiting water stream has a velocity of 15.0 m/s. The mass of water per second that strikes the blade is 33.6 kg/s...
January 30, 2014 by ben

physics
A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The incident water stream has a velocity of + 17.4 m/s, while the exiting water stream has a velocity of 15.0 m/s. The mass of water per second that strikes the blade is 33.6 kg/s...
January 30, 2014 by ben

physics
A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The incident water stream has a velocity of + 17.4 m/s, while the exiting water stream has a velocity of 15.0 m/s. The mass of water per second that strikes the blade is 33.6 kg/s...
January 30, 2014 by ben

Phyics Word Problems
Could you please check my work and help me with two of the problems. An airplane that flies at 100 km/h with a 10 km/h tailwind travels at 110 km/h relative to the ground. If it instead flies into a 10 km/h headwind, its groundspeed is 100km/h-10km/h = 90 km/h The average ...
September 3, 2007 by Soly

physical
From t = 0 to t = 3.30 min, a man stands still, and from t = 3.30 min to t = 6.60 min, he walks briskly in a straight line at a constant speed of 1.76 m/s. What are (a) his average velocity vavg and (b) his average acceleration aavg in the time interval 1.00 min to 4.30 min? ...
September 20, 2012 by Aa

physical
From t = 0 to t = 3.30 min, a man stands still, and from t = 3.30 min to t = 6.60 min, he walks briskly in a straight line at a constant speed of 1.76 m/s. What are (a) his average velocity vavg and (b) his average acceleration aavg in the time interval 1.00 min to 4.30 min? ...
September 20, 2012 by Aa

calculus
Just want to check and see if I am setting this up right. Let y=f(x)=x^2-6x Find the average rate of change of y with respect to x in the interval from x=4 to x=5 (5^2-6*5)- (4^2-6*4)/ 5-4
June 15, 2011 by Steff

Physics
Can someone check my answers for the following questions. Thanks you. 1)A hockey puck's average velocity is 22 m/s. What is its displacement after 6.0s? Answer: 132 m 2)It is 0.30 seconds after seeing a puff of smoke rise from the starter's pistol; the sound of firing the ...
January 5, 2008 by Amy

Physics - Newton's 2nd Law of Motion
Under the action of a constant net force, a 3.1-kg object moves a distance of 15 meters in 8.99 seconds starting from rest. What is the magnitude of this net force? I got the answer of 0.58 Newtons, but the book says the solution is 1.2 Newtons. To get this I found the ...
February 24, 2007 by Mike

Calculus and vectors
Bob can swim at a rate of 5km/h. He is in a river that is flowing at a rate of 9 km/h. a) if bob swims upstream, what is his relative velocity to the ground? b)if bob swims downstream, what is his relative velocity to the ground? c) Someone decides to help Bob out of the water...
March 20, 2012 by Jake

PHYSICS
SIMPSON DRIVES HIS CAR WITH AN AVERAGE VELOCITY OF 48.0KM/H TO THE EAST. HOW LONG WILL IT TAKE HIM TO DRIVE 144KM ON A STRAIGHT HIGHWAY?
September 5, 2007 by Susie

Kristen
A flywheel has a moment of inertia of 2.6 kgm2. What is the average power needed to spin it up from rest to an angular velocity of 100 rad/s in 30 seconds?
October 27, 2010 by Physics

Physics
A flywheel has a moment of inertia of 2.6 kgm2. What is the average power needed to spin it up from rest to an angular velocity of 100 rad/s in 30 seconds?
October 29, 2010 by Molly

physics
for starting from rest and moving in a straight line,runner achieves a velocity of 7m/s in a time of 2 seconds .what is the average acceleration of the runer.
January 20, 2011 by mohamed

physics
How much time would Simpson save by in- creasing his average velocity to 105 km/h to the east? Answer in units of min
September 6, 2011 by ashley

Chemistry
Which molecule below has the greatest average velocity at 100 degrees celsius? He, Cl2, Xe, O2, NO2 I am not sure how to find this out. Thank you for your help!
January 12, 2012 by Hannah

physics
a car traveling in a straight line has a velcoity of 2.43 m/s at some instant. After 6.73 s, its velocity is 9.81 m/s. what is its average acceleration in this time interval?
September 20, 2012 by shaniqua

physics
a car traveling in a straight line has a velcoity of 2.43 m/s at some instant. After 6.73 s, its velocity is 9.81 m/s. what is its average acceleration in this time interval?
September 20, 2012 by shaniqua

physics
if a cyclist takes one minute to comple half revolution on a circular path 120 m radius.what is the average velocity?
March 28, 2013 by khadija

Math
An instructor gives regular 20-point quizzes and 100-point exams in a mathematics course. Average scores for six students, given as ordered pairs (x,y) where x is the average quiz score and y is the average test score, are (18, 87), (10, 55), (19, 96), (16, 79), (13, 76), and...
March 7, 2011 by Re

math-calculus
A spy tracks a rocket through a telescope to determine its velocity. The rocket is traveling vertically from a launching pad located 10 km away. At a certain moment, the spy's instruments show that the angle between the telescope and the ground is equal to 60 degrees and is ...
December 30, 2010 by maurice

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