Which of the following would reduce the resistance of a metal wire?

increasing its length

increasing its temperature

increasing its thickness

all of the above

What is one way radiation is used that is beneficial for our health?

If a train going 60 m/s hits the brakes, and it takes the train 1 minute 25 seconds to stop, what is the train's acceleration?

What is the weight of a ring tailed lemur that has a mass of 10kg 98oz 1.02N 98N none these

Which of the following best describes a completely elastic collision? The kinetic energy (K) of the system before the collision equals K after. The potential energy (U) of the system before the collision equals U after.

What is the speed of a beam of electrons when under the simultaneous influence of E = 1.64*104 V/m B = 4.60*10-3 T Both fields are normal to the beam and to each other and produce no deflection of the electrons.

What happens when you put a galvanized zinc nail in copper solution for an hour? Does is rust or turn different color? What is the outcome? What happens after an hour in vinegar?

Psuedopod in a sentence

Study the scenario. As a spacecraft moves beyond Pluto, its thrusters are turned on for a short time to boost its speed to approximately 32,500 mi/h. The thrusters are then turned off.

What produces an electromagnetic wave? A) An oscillating or accelerating electric charge B) An electric charge moving at constant velocity C) A static electric charge D) A magnetic monopole moving at constant velocity

A physics book has a height of 25.8 cm, a width of 20.2 cm, and a thickness of 2.90 cm. (a) What is the density of the physics book if it weighs 20 N? kg/m³ (b) Find the pressure that the physics book exerts on a desktop when the book lies face up.