What statement is true because of newton's second law?
a. when the net force of an abject decreases, the acceleration doesn't change
b. when the net force of an object increases, the acceleration decreases
c. when the net force of an object decreases, the acceleration decreases
d. when the net force of an object decreases, the acceleration increases

Which terms describe the purpose of antennas on devices that use radio waves? transmit and receivemodify and amplifyamplify and receivemodify and transmit

What are two different ways you could find the value of a? explain these methods.

An alpha particle with kinetic energy 12.5 mev makes a collision with lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude l = p0 b, where p0 is the magnitude of the initial momentum of the alpha particle and b=1.40×10−12 m. (assume that the lead nucleus remains stationary and that it may be treated as a point charge. the atomic number of lead is 82. the alpha particle is a helium nucleus, with atomic number 2.) what is the distance of closest approach?