Aspring (70 n/m ) has an equilibrium length of 1.00 m. the spring is compressed to a length of 0.50 m and a mass of 2.0 kg is placed at its free end on a frictionless slope which makes an angle of 41 ∘ with respect to the horizontal. the spring is then released
a)if the mass is not attached to the spring, how far up the slope from the compressed point will the mass move before coming to rest?
b)if the mass is attached to the spring, how far up the slope from the compressed point will the mass move before coming to rest?

Which notation is used to represent an alpha particle? a. b. c. d.

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s. part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.

Consider two regions of space containing a static electric field, region a and region b. in region a the equipotential lines are more closely spaced than those in region b. what can be said about the relative strength of the electric field in the two regions? a) the electric field in region a is stronger th