Tuesday

July 22, 2014

July 22, 2014

Number of results: 8,027

**phy**

A baseball (m = 145 g) traveling 45 m/s moves a fielder's glove backward 15 cm when the ball is caught. What was the average force exerted by the ball on the glove? find Magnitude
*September 26, 2010 by mas*

**phy**

A baseball (m = 145 g) traveling 45 m/s moves a fielder's glove backward 15 cm when the ball is caught. What was the average force exerted by the ball on the glove? find Magnitude
*September 26, 2010 by mas*

**Chemistry**

Calculate the de Broglie wavelength, in nanometers, associated with a 145 {\rm g} baseball traveling at a speed of 162km/h
*November 26, 2012 by Chironjit*

**ap physics**

A 0.150kg baseball traveling with a horizontal speed of 4.50 m/s is hit by a baseball bat and then moves with a speed of 34.7 m/s in the opposite direction. What is the change in the ball's momentum?
*January 7, 2012 by sergio*

**physics**

A 0.145 kg baseball is pitched at 42 m/s. The batter hits it horizontally to the pitcher at 58 m/s. GIVEN: m = 0.145 kg v = 42 m/s batter v = 58 m/s a. Find the change in momentum of the ball. p = mv p = (0.145)(42) p = 6.09 --> What velocity would I use? Would i use the ...
*December 25, 2009 by Heart*

**Physice**

I got all but this problem, I A 0.145-kg baseball is pitched at 42.0 m/s. The batter hits it horizontally to the pitcher at 58 m/s. A. Find change in momentum? Is it =.145*58-(-.145*42)=1.45-kg m/s? B. If bat and ball are in contact for 4.6 x 10-4 s, what is average force ...
*February 14, 2010 by Nate*

**Physics**

I got all but this problem. A 0.145-kg baseball is pitched at 42.0 m/s. The batter hits it horizontally to the pitcher at 58 m/s. A. Find change in momentum? Is it =.145*58-(-.145*42)=1.45-kg m/s? B. If bat and ball are in contact for 4.6 x 10-4 s, what is average force ...
*February 14, 2010 by Nate*

**physics **

A baseball player hits a baseball (m = 0.145 kg) The ball is initially traveling horizontally with speed of 36 m/s. The batter hits a fly ball as shown, with a speed vf = 54 m/s. (a) What is the magnitude and direction of the impulse imparted to the ball? (b) If the ball (m = ...
*October 5, 2010 by anna *

**Physics**

A 0.145-kg baseball traveling 35.0 m/s strikes the catcher's mitt which, in bring the ball to rest, recoils backward 11.0 cm. What was the average force applied by the ball on the glove?
*October 10, 2008 by Steve*

**physics**

a baseball has a mass of .145 kilograms. If the acceleration die to gravity is 9.8m/s, what is the weight of the baseball
*December 10, 2012 by Darfrell*

**physics**

What is the change in kinetic energy of a baseball as it accelerates from rest to 45.0 m/s? The mass of a baseball is 145 grams. answer in joules
*March 7, 2011 by dina*

**Physics w/ Calc**

A baseball approaches home plate at a speed of 43.0 m/s, moving horizontally just before being hit by a bat. The batter hits a pop-up such that after hitting the bat, the baseball is moving at 54.0 m/s straight up. The ball has a mass of 145 g and is in contact with the bat ...
*October 16, 2011 by Lauren*

**physics**

If an 75-kg baseball pitcher wearing frictionless roller skates picks up a 0.145-kg baseball and pitches it toward the south at 40 m/s, how fast will he begin moving toward the north?
*March 31, 2011 by olga*

**chemistry**

a pitcher baseball moves at 44 M/s . It has 150 J of kinetic energy on its way to the catcher. What is the baseball 's mass?
*March 16, 2012 by maria*

**physics**

how long does it take an automobile traveling at 76.9 km/h to become even with a car that is traveling in another lane at 57.9 km/h if the cars' front bumpers are initially 145 m apart?
*August 22, 2011 by Hayley*

**Physics Please Help!**

1. How much work is required to stop an electron (m = 9.11 10^-31 kg) which is moving with a speed of 1.97 10^6 m/s? 2. An automobile is traveling along a highway at 91 km/h. If it travels instead at 100 km/h, what is the percent increase in the automobile's kinetic energy? 3...
*February 15, 2011 by Anonymous*

**Physics**

I am having alot of difficulty with this problem,any help would be greatly appreciated. A baseball of mass 145 g leaves a pitcher’s hand at 96.6 mi/h (1 mi/h = 1.609km/h), but due to air resistance, it arrives at home plate 60.0 ft away (1 ft = 0.3048 m) traveling at 95.3 mi/h...
*March 26, 2012 by bobby*

**math**

CD sales at corner music increased 145% last year. which number is equivalent to 145%? A. 14,500 B. 145 C. 1.45 D. O.O145 i think C but im not sure
*May 14, 2014 by help please*

**physics**

a 145g baseball is thrown up at 40 m/s. after traveling a distance of 50m in the air, the baseball is caught. the ball experienced air resistance of what magnitude?
*November 30, 2010 by Anonymous*

**physics**

a 145g baseball is thrown up at 40 m/s. after traveling a distance of 50m in the air, the baseball is caught. the ball experienced air resistance of what magnitude?
*November 30, 2010 by Kiddo*

**physics**

a 145g baseball is thrown up at 40 m/s. after traveling a distance of 50m in the air, the baseball is caught. the ball experienced air resistance of what magnitude?
*November 30, 2010 by Kiddo*

**Physics**

Now assume that the pitcher in Part D throws a 0.145-kg baseball parallel to the ground with a speed of 32 m/s in the +x direction. The batter then hits the ball so it goes directly back to the pitcher along the same straight line. What is the ball's velocity just after ...
*October 24, 2010 by Eden*

**science math practice **

a pitcher throws a 0.145-kg baseball at a velocity of 30.0 m/s. how much kinetic energy does the ball have?
*March 8, 2012 by celeste *

**science math practice **

a pitcher throws a 0.145-kg baseball at a velocity of 30.0 m/s. how much kinetic energy does the ball have?
*March 8, 2012 by celeste *

**Physics**

A regulation baseball has mass 145 g and diameter 22.86 cm. Will this ball float or sink in water? Vsphere = € 4 3π⋅r3
*November 30, 2013 by Angie*

**Physics**

A regulation baseball has mass 145 g and diameter 22.86 cm. Will this ball float or sink in water? Vsphere = € 4 3π⋅r3
*December 1, 2013 by Angie Need Help ASAP*

**physics**

When catching a baseball, a catcher's glove moves by 12 cm along the line of motion of the ball. If the baseball exerts a force of 463 N on the glove, how much work is done by the ball?
*November 8, 2011 by mike*

**physics**

When catching a baseball, a catcher's glove moves by 11 cm along the line of motion of the ball. If the baseball exerts a force of 407 N on the glove, how much work is done by the ball?
*March 18, 2012 by ryan*

**phy3**

A 0.01-kg baseball traveling in a horizontal direction with a speed of 11 m/s hits a bat and is popped straight up with a speed of 15 m/s. (a) What is the change in momentum (magnitude and direction) of the baseball?
*March 17, 2012 by opp*

**college physics**

Now assume that the pitcher throws a 0.145 kg baseball parallel to the ground with a speed of 32 m/s in the +x direction. The batter then hits the ball so it goes directly back to the pitcher along the same straight line. What is the ball's velocity just after leaving the bat ...
*March 11, 2010 by Anonymous*

**physics **

As a baseball is being caught, its speed goes from 30 to 0 m/s in about 0.005 its mass is 0.145. A) What is the baseballs acceleration in m/s^2 and in g's? B) What is the size of force acting on it?
*June 21, 2011 by Ralph*

**physics **

how much force is required to stop a 100 mi/hr fastball? assume the catcher's mitt stops the ball in 1 millisecond and the mass of a baseball is 145 g
*May 28, 2014 by dick *

**physics**

How much work must be done to stop a 1150-kg car traveling at 145 km/h?
*March 3, 2010 by Justin*

**math**

how would I write 145% as a fraction? it would be 145/1000 could you by any chance help me with my question it is between luke and dogauls question thanks Julie is incorrect 145/100 reduce to 29/20
*May 31, 2007 by Amber*

**physics**

Two fighter jets are flying towards each other. Jet A, with a mass of 15000 Kg, is traveling to the right with a speed of 255 m/s, whereas Jet B, with a mass of 34000 kg, is traveling to the left at 145 m/s. If the collision is perfectly inelastic, determine the final velocity...
*January 21, 2012 by sand*

**physics**

as a baseball player strikes the ball with his batt the 1kg bat applies an average force of 250N on the .15kg baseball for .2 seconds. A) what is the force applied by the baseball on the bat? what is the acceleration of the baseball? C) what is the speed of the baseball at the...
*October 20, 2011 by Ali*

**physics**

A baseball pitcher throws a baseball horizontally at a linear speed of 41.3 m/s. Before being caught, the baseball travels a horizontal distance of 15.4 m and rotates through an angle of 52.7 rad. The baseball has a radius of 3.74 cm and is rotating about an axis as it travels...
*April 9, 2014 by Anonymous*

**PHYSICIAL SCIENCE**

JAGGER APPLIES A FORCE TO THE BASEBALL AS HIS ARM MOVES A DISTANCE OF 1.0 M USING A RADAR GUN THE COACH FINDS THAT THE BALL HAS A SPEED OF 18M/S AFTER IT IS RELEASED A BASEBALL HAS A MASS OF 0.15KG CALCULATE THE FORCE THAT JAGGER APPLIED TO THE BALL
*May 3, 2013 by Anonymous*

**Physics**

A baseball has a mass of .145 kilograms. A pitcher's fastball travels at 42 m/s. How much force is applied to the ball if the catcher stops the ball in .05 sec?
*October 18, 2011 by Yuki*

**physics**

A baseball player hits the ball at a speed of 20.1 m/s and an angle of 30 degrees. What is the baseball's horizontal velocity? What is the baseball's vertical velocity? How long does it take the baseball to get 28m in front of home plate?
*September 11, 2011 by brittany*

**physics**

A baseball player hits the ball at a speed of 20.1 m/s and an angle of 30 degrees. What is the baseball's horizontal velocity? 1m/s What is the baseball's vertical velocity? 2m/s How long does it take the baseball to get 28m in front of home plate? 3 seconds
*September 11, 2011 by brittany*

**Physics**

The velocity of the baseball as it leaves the bat is 38.2 m/s. Determine (a) the maximum height the baseball reaches, and (b) the total timke the baseball is in the air. Assume the baseball is caught at the same height above the ground as it was hit.
*November 27, 2012 by Anonymous*

**physics**

A baseball pitcher throws a baseball horizontally at a linear speed of 50.6 m/s. Before being caught, the baseball travels a horizontal distance of 24.9 m and rotates through an angle of 54.5 rad. The baseball has a radius of 3.43 cm and is rotating about an axis as it travels...
*June 23, 2014 by Anonymous*

**Physic**

A 135 g baseball traveling at a speed of 36 m/s hits a bat and moves back along its incoming trajectory with a speed of 47 m/s. a) What is the impulse delivered to the ball by the bat? (Answer: 11.2kg * m/s) b) If the duration of the bat-ball collision is 7 x 10^-4s, what is ...
*April 22, 2014 by Anonymous*

**physics**

A coach is hitting pop flies to the outfielders. If the baseball (mass = 145 g) stays in contact with the bat for 0.08 s and leaves the bat with a speed of 75 m/s, what is the average force acting on the ball?
*February 11, 2012 by brett*

**Physics**

compare the collision of a baseball and bat with the collision of a baseball and a fielder's glove when the baseball is caught. During which collision is there a greater momentum change for the baseball?
*January 22, 2013 by Dan*

**physics**

what is the distance between centers of a baseball of mass 0.145 kg and a bowling ball of mass 5.5 kg, such that the gravitational force between them is 1.3 * 10^6N
*October 9, 2012 by nana*

**physics**

A 0.01-kg baseball traveling in a horizontal direction with a speed of 12 m/s hits a bat and is popped straight up with a speed of 15 m/s. (a) What is the change in momentum (magnitude and direction) of the baseball? (b) If the bat was in contact with the ball for 26 ms, what ...
*November 9, 2010 by tim*

**Physics**

A 0.03-kg bullet is fired vertically at 200m/s into a 0.15-kg baseball that is initially at rest. The bullet lodges in the baseball and, after the collision, the baseball/bullet rise to a height of 37m. (a). What was the speed of the baseball/bullet right after the collision...
*February 14, 2013 by Annie*

**3rd Grade Math**

Marlon has 4 baseball cards, Jake has 4 baseball cards, and Sam has 3 baseball cards. Can you write a multiplication sentence to find how many baseball cards they have altogether? Explain.
*February 2, 2010 by Kainalu Mauga*

**PHYSICS**

A baseball of mass 148g is travelling at 35.0m/s [E] collides with a baseball bat. the collision lasts for 1.10ms. After the collision, the baseball travels at 52m/s [W]. What is the force of the bat on the baseball
*April 5, 2013 by R*

**Math**

Marlon has 4 baseball cards, Jake has 4 baseball cards and Sam has 3 baseball cards. Can you write a multiplication sentence to find how many baseball cards they have altogether? Explain.
*November 12, 2013 by Tammy*

**SS**

The following natural resources are used to make a regular pencil. wood, graphite, rubber, metal Which of the following products could also be made using the above resources? baseball baseball jersey baseball glove baseball bat (my choice)
*September 6, 2013 by Anonymous*

**science**

A baseball with a mass of .8 kg is traveling at a velocity of 11.8 m/s. what is it kinetic energy
*January 9, 2012 by glenn*

**Physics**

A baseball player throws a baseball up at 24.3 m/s. How long must he wait before he can catch the baseball on its way down?
*November 15, 2012 by Chris*

**Chemistry**

This question has been bugging me for a long time. A rock contains a Pb-206 to U-238 mass ratio of .145 to 1.00. Assuming that it did not contain any Pb-206 at the beginning of its formation, determine its age. I assume from the other problems in my book that the 1/2 life is 4...
*February 23, 2013 by Nancy *

**physics**

ok so I really don't get 2d collisions and I thought I knew how to do this one but I have no idea: A 104 kg baseball player jumps up verticlly to catch a baseball of mass .254 kg traveling horizontally with a speed of 28.6 m/s. If the vertical speed of the player is .258 m/s ...
*December 16, 2007 by Ty*

**physics**

ok so I really don't get 2d collisions and I thought I knew how to do this one but I have no idea: A 104 kg baseball player jumps up verticlly to catch a baseball of mass .254 kg traveling horizontally with a speed of 28.6 m/s. If the vertical speed of the player is .258 m/s ...
*December 16, 2007 by Ty*

**Calculus - Taylor**

could you please help me with solving this problem? #1) Find the Taylor polynomial Tn(x) for the function 'f' at the number 'a'. f(x) = sqrt(3+x^2) ; a=1; n=2; my work so far: f (x) = sqrt(3+x^2) = (3+x^2)^(1/2) f ' (x) = (1/2)(3+x^2)^(-1/2) f '' (x) = (-1/4)(3+x^2)^(-3/2) f...
*July 28, 2007 by COFFEE*

**Precalc**

Fred hits a baseball 3 ft above ground at a velocity of 100 ft per sec and at an Angle of 45 degrees with respect to level ground. The path of the baseball is given by the function f(x)=-0.0032x^2+x+3 where f(x) is the height of the baseball in ft and x is the distance from ...
*November 7, 2010 by Jackk*

**physics**

A baseball of mass 0.145 kg approaches a bat at 40.0 m/s. After it is hit, the ball leaves the bat at 50.0 m/s directly back. Find the impulse of the bat on the ball.
*January 23, 2014 by Mackenzie*

**Physics**

"if u could do this physics problem thatd be super. A coach is hitting pop flies to the outfielders. If the baseball (m = 145 g) stays in contact with the bat for 0.04 s and leaves the bat with a speed of 50 m/s, what is the average force acting on the ball?"
*February 26, 2010 by Pat*

**physics**

you and your friend are riding on a helicopter that is traveling west at a speed of 10 meters per second. You throw a baseball with a velocity of 2 meters per second north, straight across the inside of the helicopter to your friend on the other side. What is the velocity of ...
*February 23, 2014 by rafael*

**Alegra 2**

A baseball is hit at a point of 3 feet above ground at a velocity of 100 feet per second and an angle of 45 degrees. The path of the baseball is h(x)= -0.0032(x-156.25)squared+87, where x and h(x) are measured in feet. A. what is the baseball's maximium height? B. will the ...
*October 23, 2011 by Emily*

**Calculus**

f(t)=1/3(t+145)^2 - 67 Find the inverse? is it t=1/3(f+145)^2-67
*August 17, 2008 by Hamilton*

**science**

You are standing stationary along the side of the railroad tracks. A toy cannon shoots a baseball at 9 m/s. The cannon is mounted facing forward on the handlebars of a bike. Your friend is riding the bike from the front toward the back of a train car at 5 m/s. The train is ...
*February 26, 2013 by aly*

**physics**

A baseball with a mass .8 k g is traveling at a velocity of 11.8m/s. what is it kinetic energy. Round your answer to the nearest tenth.
*January 9, 2012 by glenn*

**algebra**

A baseball player hits a baseball into the outfield. The following equation models the ball's path. If not caught, when will the baseball land? Round to the nearest tenth second. h = -16t^2 + 50t + 4
*October 20, 2011 by tracy*

**physics**

A regulation 145 g baseball can be hit at speeds of 100 mph. If a line drive is hit essentially horizontally at this speed and is caught by a 65 kg player who has leapt directly upward into the air, what horizontal speed (in cm/s) does he acquire by catching the ball?
*October 28, 2009 by Student1*

**Physics**

An outfielder throws a 0.145 kg baseball to the shortstop with a speed of 30 m/s at an angle of 20 degrees above the horizontal. How far does the ball travel? (Assume the shortstop catches it at about the same height that the outfielder throws it.)
*September 27, 2012 by Nick*

**English**

1. I will go to a baseball game. 2. I like going to a baseball game. 2-2. I like going to baseball games. 2-3. I like going to the baseball game. 3. I like watching baseball games. 4. I will go to the baseball stadium to play baseball against the Tigers. 5. I will play ...
*May 20, 2013 by rfvv*

**Physics**

Every once in a while a bird will get hit by a baseball during a baseball game. The longest home runs in baseball land about 500 feet (which is 152.4 meters) from home plate. If these balls leave the bat at a 45 degree angle to maximize their distance, what is the minimum safe...
*March 12, 2013 by John*

**Physics**

Every once in a while a bird will get hit by a baseball during a baseball game. The longest home runs in baseball land about 500 feet (which is 152.4 meters) from home plate. If these balls leave the bat at a 45 degree angle to maximize their distance, what is the minimum safe...
*March 27, 2013 by Dan*

**Physics **

A baseball of mass 0.13 kg, moving horizontally with a momentum of 4 kg¡Pm/s, is struck head-on by a baseball bat with an impulse of 10 N¡Ps. What is the speed of the baseball after it is struck? _______m/s
*October 20, 2013 by anonymous *

**College Level Physics**

A horse pulls a cart with a force of 145 newtons at an angle of 30 degrees above the horizontal and moves along at a speed of 2.5 m/s. How much work to the nearest kJ does the force do in 6 minutes?
*June 9, 2013 by Devin*

**Gen physics**

A 55.0 kg high school baseball pitcher is holding a 149 g baseball as he slides horizontally on a frictionless surface with a velocity of +2.15 m/s, relative to the surface. He then throws the baseball with a velocity of +46.7 m/s relative to the surface. What is the player’s ...
*July 16, 2013 by No clue on this one*

**Math-- PLEASE CHECK**

234 - 145 3/4 233 4/4 -145 3/4 ___________ 88 1/4 or am I wrong? How do I solve this if I am wrong? Thank you!! you're correct
*February 22, 2007 by Candace*

**Chem**

Consider this reaction: CO (g) + H2O (g0 <---> CO2(g)+H2(g) kc=102 at 500 K A reaction mixture initially contains 0.145 M of CO and 0.145 M of H20. What would be the equilibrium concentration of [CO]? I so far have kc= [H2][CO2]/[CO][H2O]= 102 I know i have to set up an ...
*March 21, 2010 by Katie*

**physics**

please HELP!!! What is the magnitude of the momentum of a baseball (m = 1.450 kg) traveling at a speed of 102 mi/h? Express your answer in SI units. I am unsure where to start
*September 26, 2010 by bill*

**math**

is there a common multipple for 116, and 145? Can 116/145 be reduced or simplified? I have been agonizing for an hour over this. Please show me the answer.
*July 29, 2010 by barb*

**physics**

A baseball player puts a baseball on a batting tee. The baseball bat is able to deliver 400,000 W of power and is in contact with the ball for 0.70 ms and a distance of 1.4 cm. the mass of the ball is 145g. What is the average acceleration?
*November 7, 2012 by S*

**Physics**

An unmarked police car traveling a constant 80 is passed by a speeder traveling 145 .Precisely 2.50 after the speeder passes, the police officer steps on the accelerator; if the police car's acceleration is 1.80 , how much time passes before the police car overtakes the ...
*October 4, 2011 by George*

**math**

A baseball player swings and hits a pop fly straight up in the air to the catcher. The height of the baseball in meters t seconds after it is hit is given by a quadratic function h(t) = −4.9t^2 + 9.8t + 1. What is the maximum height of the baseball?
*April 14, 2013 by Anonymous*

**Precalculus**

Homework help quick given f(x)= (X+1)/(x) and g(x)= x squared +1 find (g f)(-9) the options are 145/21 83/82 145/64 17/9 this is a homework question and it is due tommorow can u also explain or sow how you arrived at that answer Thanks in advance
*February 17, 2010 by Ariel*

**Precalculus**

Homework help quick given f(x)= (X+1)/(x) and g(x)= x squared +1 find (g f)(-9) the options are 145/21 83/82 145/64 17/9 this is a homework question and it is due tommorow can u also explain or sow how you arrived at that answer Thanks in advance
*February 17, 2010 by HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*

**physics**

A 0.145 kg baseball pitched at 35.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 52.0 m/s. If the contact time between bat and ball is 1.00*10 to the -3, calculate the average force between the ball and bat during contact.
*December 19, 2011 by Amelia*

**Algebra 2**

A baseball player swings and hits a pop fly straight up in the air to the catcher. The height of the baseball in meters t seconds after it is hit is given by a quadratic function h(t) = −5t^2 + 10t + 1. What is the maximum height of the baseball?
*May 1, 2012 by Alex*

**Physics**

A 0.145 kg baseball pitched at 38.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 55.0 m/s. If the contact time between bat and ball is 3.40×10−3 s, calculate the average force between the ball and bat during contact.
*November 8, 2010 by brian*

**Physics**

A 0.145 kg baseball pitched at 37.5 m/s is hit on a horizontal line drive straight back toward the pitcher at 48.0 m/s. If the contact time between bat and ball is 3.50×10^−3 s, calculate the average force between the ball and bat during contact.
*November 10, 2010 by Linda*

**physic**

a golf ball of mass 0.045 kg is moving in the +x direction with a speed of 9.0 m/s, and a baseball of mass 0.145 kg is moving in the -y direction with a speed of 7.0 m/s. What are the magnitude and direction if the total momentum of the system consisting of the two balls?
*September 23, 2012 by jaymark*

**Precalculus**

Homework help quick given f(x)= (X+1)/(x) and g(x)= x squared +1 find (g X f)(-9) the options are 145/21 83/82 145/64 17/9 this is a homework question and it is due tommorow can u also explain or show how you arrived at that answer Thanks in advance by X i meant multiply
*February 17, 2010 by HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*

**Physics**

A catcher “gives” with the ball when he catches a 0.179 kg baseball moving at 16.5 m/s. If he moves his glove a distance of 2.25 cm, what is the average force acting on his hand? Answer in units of kN.
*February 18, 2010 by Caryn*

**physics**

What is the speed in meters per second of a baseball traveling at 64 mph given that 1 mph = 0.447 m/s?
*February 2, 2012 by maggie*

**Physics**

A baseball is thrown with an initial velocity of 37 m/s at an angle of 26 degrees above horizontal, from the top of the building which is 72 meters high. A. What will be the horizontal and vertical components of this baseballs velocity? B. what will be the vertical velocity of...
*January 23, 2013 by A*

**Physics**

I'm not sure how to do this problem A 145-g baseball is droppexc from a tree 12.0 m above the ground. (a) Wtih what speed would it hit the ground if air resistance could be ignored? (b) If it actually hits the ground with a speed of 8.00 s^-1 m, what is the average force of ...
*September 24, 2009 by Physics*

**physics**

The pilot of a plane looks at her speedometer to see that she is traveling at 165 km/h and she is heading north. An observer on the ground looks at the plane and it appears to be going 145 km/h. What is the velocity of the wind that is affecting the plane?
*October 19, 2011 by Joshua*

**Algebra**

A baseball player hits a baseball into the air with an initial vertical velocity of 48 feet per second from a height of 3 feet. 8. Write an equation that gives the baseball’s height as a function of the time (in seconds) after it is hit. 9. After how many seconds does the ...
*March 31, 2013 by Elizabeth*

**Math**

i'm a bit stuck with this.. 145/18 = x + x^2 what does x equal to? multiply each term by 18, then re-arrange to get 18x^2 + 18x - 145 = 0 This quadratic does not factor, so use the quadratic formula to get your two answers.
*July 27, 2007 by COFFEE*

**College Physics**

A 0.145 kg baseball is moving at a speed of 15.0 meter/sec east toward the bat. The bat has 3.00x10^-3 seconds contact with the ball. As a result the ball flies back at 25.0 meter/sec west. What was the force (vector!) the bat exerted on the ball?
*March 24, 2010 by //** *

**College Physics**

A 0.145 kg baseball is moving at a speed of 15.0 meter/sec east toward the bat. The bat has 3.00x10^-3 seconds contact with the ball. As a result the ball flies back at 25.0 meter/sec west. What was the force (vector!) the bat exerted on the ball?
*March 24, 2010 by Anonymous*

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