Technician A says refrigerant leaks are most common where components join together. Technician B says many manufacturers put leak-tracing dye in the refrigerant systems of new vehicles. Which technician is correct?

Which describes an image that can be produced by a concave lens? the image is real and smaller than the object. the image is virtual and larger than the object. the image is virtual and smaller than the object. the image is real and larger than the object.

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?

To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.