In which medium is the speed of a sound wave the greatest?

A) air in your classroom

B) iron railroad track

C) pool of water

D) vacuum in space

About how much time elapses between high tides on the same day?

10. A 5.0 g pellet is placed in the barrel of a toy gun and is propelled by a spring of force constant 50. N/m. The spring is compressed 20. cm and then released. Calculate the maximum velocity of the pellet when shot horizontally.

What force always resists or apposes acceleration?

A current density of 8.50 10-13 A/m2 exists in the atmosphere at a location where the electric field is 143 V/m. Calculate the electrical conductivity of the Earth's atmosphere in this region.

A 13-cm-diameter cd has a mass of 25 g. part a what is the cd's moment of inertia for rotation about a perpendicular axis through its center?

Students will explain, distinguish the difference between the 4 states of matter

Name one way that a mixture can be separated

The Huka Falls on the Waikato River is one of New Zealand's most visited natural tourist attractions. On average, the river has a flow rate of about 300,000 L/s. At the gorge, the river narrows to 20-m wide and averages 20-m deep.

Name six processes that are often involved in scientific inquiry.

What happens to the ball's velocity while the ball is traveling upwards?