Which change decreases the resistance ofva piece of copper wire?

4. Which of the following are possible units for measuring acceleration? You may choose more than one answer. a. m/s? b. cm/s c. mph d. cm/s/s

A 200 g oscillator in a vacuum chamber has a frequency of 2.0 hz. when air is admitted, the oscillation decreases to 60% of its initial amplitude in 50 s. how many oscillations will have been completed when the amplitude is 30% of its initial value?

A turntable must spin at 33.4 rpm (3.50 rad/s) to play an old-fashioned vinyl record. how much torque must the motor deliver if the turntable is to reach its final angular speed in 1.

You stand 75.0 m away from the launch pad of a model rocket. you watch the rocket rise to an angle of 65.0 degrees. your eye is 1.50 m above the horizontal. What altitude did the rocket achieve

If a chlorine atom gains or loses a valence electron, it becomes a charged particle called a/an A. flourine B. ion C. neutron D. chloride atom

What are the strengths and limitations of the doppler method?

Voltage can exist without A. current. B. resistance. C. a closed circuit. D. all of these

During a football game, a receiver has just caught a pass and is standing still. Before he can move, a tackler, running at a velocity of 2.60 m/s, grabs and holds onto him so that they move off together with a velocity of 1.30 m/s.

What effect does an increase in temperature have on viscosity?

Aman tosses a jart upward with a velocity of 14.1 m/s a 60° angle