a 58.72 person holding a steel ball stands motionless on a frozen Lake The Person then throws the Ball Which propells the person at 1.05m/s to the right and the ball 3.75m/s to the left If The initial momentum of the system is zero what is the mass of the steel Ball A. 3.57 B .3.73 C. 16.44 D. 15.66

The process in which the nucleus of an atom splits into two lighter atoms, releasing a large amount of energy is nuclear

The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2

Automobile fuel efficiency is often measured in miles that the car can be driven per gallon of fuel (mpg). heavier cars tend to have lower fuel efficiencies (lower mpg ratings). which variable (weight or fuel efficiency) is most naturally considered the explanatory (predictor) variable in this context?