How much work is done when a book weighing 2.0 newtons is carried at constant velocity from one classroom to another classroom 26 meters away?

A 0.25 kg hockey puck is sliding along the ice with an initial velocity of 5 m/s when a player strikes it with his stick, causing it to reverse its direction and giving it a velocity of 30 m/s.

Why might people be able to walk barefoot on hot coals of wood without burning their feet?

An inductor with L = 9.80 mH is connected across an ac source that has voltage amplitude 41.5 V. What value for the frequency of the source results in a current amplitude of 4.50 A?

A box of mass 3kg is lifted onto a shelf. Calculate the change on its gravitational potential energy. The gravitational field strength is 10N/kg.

What kind of weather would ananticyclone likely bring?

A steamboat moves with velocity components of 6 km/hr along the x direction and 8 km/hr along the y direction. what is the direction of the steamboat with respect to the x axis?

What are 3 ways scientists can take to reduce bias?

A water heater is operated by solar power. If the solar collector has an area of 6.39 m2, and the intensity delivered by sunlight is 550 W/m2, how long does it take to increase the temperature of 1.00 m3 of water from 19.4∘C to 72.1 ∘C?

Which of the following factors will negatively impact the rate of diffusion of a molecule? A short distance between two concentrations of the molecule A low difference in the concentration of the molecule across the media A warm environment

A sound wave has a frequency of 1,395 Hertz. All sound waves in air travel at 343 m/s. Find the wavelength of the sound wave. what's the answer?