Consider a wave approaching a barrier with a small hole. what change is the wave likely to undergo as it passes through the hole?

During which season is the sun highest in the sky? A. spring B. summer C. fall D. winter (this is science)

A solid of density 8000 kgm ... weighs 0.8 kgf in air. When it is completely submerged in a liquid of density 5000 kgm - 3 ', the weight appears to decrease. What is the apparent weight of the solid in the liquid?

A car accelerates from rest for 5 seconds until it reaches a speed of 20 m/s. what is the car's acceleration in meters per second per second?

Describe the relationship between a load and a stress.

Energy that does not involve the large-scale motion or the position of objects in a system is called a. potential energy. b. mechanical energy. c. nonmechanical energy. d. conserved energy.

Explain why the friction force between two surfaces increases if the force is pushing the surfaces together increases.

As energy moves in waves through the water, the water moves a. in waves toward shore. c. in the direction of the waves. b. in a small circular movement. d. against the current.

Which of the following values represents an index of refraction of an actual material? A. 0 B. 1 / 4 C. 5 / 4 D. 1 / 2

Which statement best describes the effect of scientific advances on society? A. They always have a positive impact on society. B. They are inspired by the needs of society. C. they do not affect society beyond the community level. D.

Which way does wind blow, A. horizontally, B. Only from east to west, C. Only from West to east, D. vertically