what is the pressure produced by a kilogram of lead on a horzontal surface if its area it rests on is 0.02m^2?

What is the average velocity of a car that travels 450 km north in 9.0 hours?

Do these examples represent unbalanced or balanced forces?

Kinetic energy is affected the most by the what of an object?

Um objeto de 200 kg é acelerado a 4 m/s2 sob ação de uma força F. Determine a distância deslocada pelo objeto sob ação dessa força sabendo que a energia transferida para ele foi de 9,6 kJ. a) 8 m b) 10 m c) 12 m d) 13 m e) 14 m

Two tiny beads are 25 cm apart with no other charges or fields present. Bead A carries 10 µC of charge and bead B carries 1 µC. Which one of the following statements is true about the magnitudes of the electric forces on these beads

Suppose that, while lying on a beach near the equator of a far-off planet watching the sun set over a calm ocean, you start a stopwatch just as the top of the sun disappears. you then stand, elevating your eyes by a height h = 1.

Suppose you want to know if the color of peoples hair affects how warm it can keep their heads. describe the skills you would use to conduct an experiment to test your inquiry

The mass is increased by a factor of four. What is true about the period? Choose the best answer. The period remains unchanged. The period increases by a factor of four. The period is halved. The period doubles.

What does law of conservation of mass mean?

Why do substances with free electrons make the best conductors.