Which feature of the sun is a section that is cooler than its surroundings?

Corona

Prominence

Solar flare

Sunspot

A circular coil of radius 5.0 cm and resistance 0.20 is placed in a uniform magnetic field perpendicular to the plane of the coil. The magnitude of the field changes with time according to T.

Give an example of a theory scientists believed for a long time that was eventually proved false

After how many seconds does the motorcycle have positive acceleratolion

In his psychology class, Professor Adams said that fear of spiders and snakes are common in humans, but fear of automobiles is not. This is true even though far more people are killed by automobiles than by spiders or snakes.

During a 0.001 s interval while it is between the plates, the change of the momentum of the electron Δp with arrow is kg m/s. What is the electric field between the plates?

What are the steps that are important to take for your safety during an earthquake? a. stay away from walls and windows c. stay away from electrical and gas lines b. get under a desk or table d. all of the above

You have an open air column of length 1.40 m in air at 24.2 °C. What is the frequency of the third harmonic?

Why do we use average force while solving momentum problems? How is net force related to the momentum of the object?

If you had a positive 8 score on the sit-an-reach test you

65 million years ago there was a mass extinction that is best known for killing the dinosaurs. There was also a large deposit of dust that contained substances only found in asteroids.