Axial Field Model: 1. How do the first three runs compare with each other? What does this show about the axial field strength across the coil (moving perpendicular to the axis of the coil)?

Scientists use laser range-finding to measure the distance to the moon with great accuracy. a brief laser pulse is fired at the moon, then the time interval is measured until the "echo" is seen by a telescope. a laser beam spreads out as it travels because it diffracts through a circular exit as it leaves the laser. in order for the reflected light to be bright enough to detect, the laser spot on the moon must be no more than 1.0 km in diameter. staying within this diameter is accomplished by using a special large-diameter laser. part a if λ = 540nm , what is the minimum diameter of the circular opening from which the laser beam emerges? the earth-moon distance is 384,000 km. express your answer to two significant figures and include the appropriate units.

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.