The data below are taken from a test of a petrol engine for a motor car.

power output 150

kW

fuel consumption 20 liters per hour

energy content of fuel 40

MJ per litre

Which expression will evaluate the efficiency of the engine?

The main difference between kinetic energy and potential energy is that

How can this sandstone become an igneous rock?

Assume the population of a large city like New York City is about 4 * 10^6 people, with about 1.97 people per household. Approximately 1 household in 16.1 has a piano. The piano keyboard has about 64 notes (8 octaves) with about 2 strings per note.

Young's experiment is performed with light of wavelength 502 nm from excited helium atoms. Fringes are measured carefully on a screen 1.

Why is it important that we calculate the volume of dry gas

O que é cena fone de luz na visão da fisica

Why do we apply oil on door hinges

What is the relationship between power and voltage

Consider a system of an 85.0 kg man, his 21.0-kg dog, and the earth. The gravitational potential energy of the system increases by 2.40 103 J when the man climbs a spiral staircase from the first to the second floor of an apartment building.

2 g of a gas initially at 4.00 atm is compressed from 8.00 l to 2.00 l at constant temperature. what is the resulting pressure in atm of the gas?