What is the exact meaning of croos section and cross sectional area of a conductor?

Describe how changing the angle of a ramp affects the acceleration of an object.

A well lagged copper calorimeter of mass 120g contains 70g of water and 10g of ice both at 0 degrees Celsius. Dry steam at 100 degrees Celsius is passed in until the temperature of the mixture Is 40 degrees Celsius.

Which of the following are ohmic materials? a. Batteries Wires Resistors Light bulb filaments b. Batteries, wires, resistors, and light bulb filaments c. Wires and resistors Batteries and wires d.

What type of force holds atoms together in a crystal?

Which of the following is the best explanation for acceleration? * 1 pc O The rate of change in velocity. The speed and distance an object travels. O The amount of force needed to move an object.

A trained attack octopus can crawl at a velocity of 0.3m/s. If the octopus crawls towards its victim for 30 seconds, what is the change in position (or distance) that the octopus crawled?

Which profession is responsible for a planes design? A) Aerospace engineering B) Aerospace mechanic C) Pilot D) Flight attendant

Distracted driving laws have been put in place due to scientific studies that have shown the dangers associated with wireless technology. DDT. plastics. vaccines.

An electric circuit consists of a variable resistor connected to a source of constant potential difference. If the resistance of the resistor is doubled, the current through the resistor is (1) halved (3) quartered (2) doubled (4) quadrupled

If it takes 20n to move a box, how much power will be needed to move the box a diatance