When a wave enters a new medium, it

may speed up or slow down. What

other properties of the wave do you

think might change when it enters a

new medium?

What impulse results if the force acting on an object is described by the force-time graph shown? 0.50 kgm/s 0.60 kgm/s 1.3 kgm/s 2.1 kgm/s

There is a balance of heat coming into and going out of earth. This is known as the?

a car travels 60 km in 2 hours 84 km the next 1 hour and then 68 km in 8.9 hours before reaching its destination what was the cars average speed in km / h

use the drop down means to classify the elements as alkali metals alkaline eather metals or transition metals

What is polarization? a) only allows vertical light to pass through b) only allows light that is in the same plane to pass through c) only allows horizontal light to pass through d) only allows white light to pass through the plane

No force is necessary to

A boat has a mass of 4040 kg. Its engines generate a drive force of 4660 N due west, while the wind exerts a force of 880 N due east and the water exerts a resistive force of 1400 N due east. Take west to be the positive direction.

Define the word projectile

Which is not a property of an electromagnetic wave? O It is made of magnetic fields It travels at the speed of light O It is made of electrical fields It carries energy only through matter

Explain why your weight would be less in the moon than on earth even though your mass would not change. Use the law of universal gravitation in your explanation.