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Two billiard balls of equal mass undergo a perfectly elastic head-on collision. If the speed of ball 1 was initially 3.00 m/s, and that of ball 2 was 4.00 m/s in the opposite direction, what will be
A new model of mass 1200 kg takes 0.10 s from the time of impact until it is brought to rest. (Take the positive direction to be the original direction of motion.)(a) Calculate the average force exe
A 8 kg hammer strikes a nail at a velocity of 8.7 m/s and comes to rest in a time interval of 8.0 ms. (a) What is the impulse given to the nail? (b) What is the magnitude of the average force acting o
What is the minimum coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road?
A 5640 kg open railroad car coasts along with a constant speed of 8.60 m/s on a level track. Snow begins to fall vertically and fills the car at a rate of 3.50 kg/min. Ignoring friction with the tra
A 568- physics student stands on a bathroom scale in an 880- (including the student) elevator that is supported by a cable. As the elevator starts moving, the scale reads 480. If the scale reads zer
A long wire carrying a 5.0 A current perpendicular to the xy-plane intersects the x-axis at x= - 2.0 cm . A second, parallel wire carrying a 3.5 A current intersects the x-axis at x=+ 2.0cm .
A long wire carrying a 5.0 A current perpendicular to the xy-plane intersects the x-axis at x = - 2.0 cm. A second, parallel wire carrying a 3.5 A current intersects the x-axis at x = + 2.0cm .
Why if the object moves as projectile the x component of the velocity is constant and the y component change at the same rate?
The first place is between the charges and is 5cm to the left of the negative charge. The second place is 10cm to the right of the negative charge. Find q1/q2, the ratio of the magnitudes of the cha
If the depth of a swimming pool is 7m, find the radius of the circle formed by the cone that will appear to a person looking up from the bottom of a swimming pool. refractive index of water is 4/3.
Find the magnitude and direction of the electrostatic force on particle 2 due to particle 1. At what x and y coordinates should a third particle of change q3 = +4.0 μC be palced such that the net
A single point charge of +q is placed at the very center of two spherical shells. The inner shell is non-conducting, has a charge of -2q, and an inner radius of a and outer radius of b.
you drive north on a highway then without changingspeed you round a curve and drive east what is the changer of your
a coin with a diameter of 240 cm is dropped on edge onto ahorizontal surface the coin starts out with an initialangular
you are standing on a sheet of ice that covers the football stadiumparking lot in buffalo there is negligible friction
a 00400 kg golf ball initially at rest is given aspeed of 350 ms when a club strikesif the club and ball are in contact
a race track is to have a banked curve with radius250 m what should be the angle of the bank if the normal force alone
a student sits on a rotating stool holding two 30 kg objects when his arms are extendedhorizontally the objects are 10
dan hits a hockey puck giving it an initial velocity of 30ms if the coefficient of kinetic friction between ice and
a diver springs upward from a three-meter board at the instant shecontacts the water her speed is 890ms and her body
a person is riding a bicycle and itswheels have an angular velocity of 250 rads thenthe brakes are applied and the bike
a projectile is fired vertically from earths surface with aninitial speed of 46 kms neglecting air drag how far above
a solid horizontal cylinder of mass 90 kg and radius 130 mrotates with an angular speed of 600 rads about a fixed