Which microscope is the most powerful and can Map Adams on the surface of an object

Sound travels about 750 miles per hour. if you stand in a canyon and sound a horn, you will hear an echo. suppose it takes about 1.5 seconds to hear the echo. how far away is the canyon wall, in feet? feet now let's generalize that result.

Which is warmer - 30 degrees Celcius or - 30 degrees Fahrenheit? And how would i show my work for this question?

Some of the minerals found in rocks dissolve in water as it flows over the rocks. would these minerals dissolve more quickly a. at the bottom of a waterfall or in a still pond? why? b.

Which of newton's laws could we have used to predict that the forces in parts b and e are equal and opposite?

A slightly bruised apple will rot extensively in about 2.5 days at room temperature (25.0°C). If it is kept in the refrigerator at 0.5°C, the same extent of rotting takes about 17 days. What is the activation energy for the rotting reaction?

Heat is a kinetic energy. give reason

If you placed a dot on a world map to represent the location of every earthquake in the last 100 years, where would you see earthquake activity most concentrated? why is this so?

If the medium moves perpendicular to the direction of the wave motion, the wave is classified as a longitudinal wave. True or False?

Why might surface mining be less risky for miners than underground mining?

Sometimes the moon appears to have a halo around it at night. Why does this happen? A. It's due to a partial lunar eclipse. B. Moonlight is refracted through ice crystals in high clouds. C.