A 10-N force is exerted on a box, moving it 20 m in the same direction. What is the magnitude of work done on the box?

Uma pessoa exercita-se em uma esteira rolante manual. Ela andou 20 minuots com velocidade de 5.4km/h e consumuiu 200 quilocalorias. Qual a distancia percorrida por essa pessoa se estivesse na rua? Qual seu deslocamento em relação ao solo?

Why are circuit breakers and fuses important?

The density of an object is defined as its mass divided by its volume. Suppose the mass and volume of a rock are measured to be 8 g and 2.8325 cm^3. What is the correct number of significant figures for the rock's density?

If you have a 600 w blender and you run it for 10 seconds how much energy does it use

A positively charged spherical object is placed equidistant between two other identical uncharged spherical objects. How would the charges in the middle sphere be distributed?

How do repeater stations improve the quality of a broadcast?

What is the total number of atoms in the following formula? CaBr2 04

The Amazon River is in Europe. True or False

A microwave oven operating at 120 volts is used to heat a sandwich if the oven draws 12.5 amperes of current for 45 seconds what is the power dissipated by the oven?

Which of the transformers are step-up transformers? Which of the transformers are step-down transformers?