Why there is a difference between 'actual' mechanical advantage and 'ideal' mechanical advantage.

A weightlifter raises a 200-kg barbell with an acceleration of 3 m/s squared. how much force does the weightlifter use to raise the barbell

Is a clock a periodic motion

A wagon has a mass of 100 grams and an acceleration of 2m/s/s. What is the force on the wagon?

Scientific theories can be formed after many hypotheses, experiments, and observations have been made that all validate the same idea. Once a theory is established and used to make accurate predictions, it is set in stone as a fact.

There are three types of nuclear reactions: alpha decay, beta decay, and fusion. A. True B. False

What do nuclear fission and nuclear fusion have in common?

When plug prongs are connected to the metal case of an appliance, a part that should always be placed next to the case is a a. flat metal washer. b. hexagonal aluminum shoulder. c. steel nut. d. mica washer.

For a constant voltage, increasing the resistance will cause the current to decrease

Soils are made up of mineral portion an organic portion air and water what is meant by the word organic Nonliving mineral in composition Composed of several organs Material that was produced by or was/is part of living organism Musics in nature

A car is traveling at 42.0 km/h on a flat highway. (a) If the coefficient of friction between road and tires on a rainy day is 0.107, what is the minimum distance in which the car will stop?