What phylum does a star fish belong to

what is the gravitational potential energy of a clock that had a mass of 4 kg and is positioned 1.5 m off the ground

Magine a satellite is orbiting the moon. How would the satellite behave if the moon were to suddenly disappear? A) The satellite would stop moving. B) The satellite would continue to move in its orbital path.

A farmer is using a rope and pulley to lift a bucket of water from the bottom of a well. the farmer uses a force f1=57.5 n to pull the bucket of water upwards. the total mass of the bucket of water is f2 = 3.9kg.

Explain why identical objects at the same height would have different gravitational potential energies on different planets

Mary is driving a car of mass 900 kilograms toward the north with a velocity of 22 meters/second. Danny is driving his 900-kilogram car with a velocity of 15 meters/second toward the east. They collide and both cars move together afterwards.

When an ocean plate converges with another plate, what is created on the seafloor at the line of convergence?

Calculate the angle of refraction of 30.0° light shines from water into ice. The indices of refraction for water and ice are 1.36 and 1.31, respectively. A) 19.8° B) 31.3° C) 40.9° D) 64.0°

What is the length of a simple pendulum with a period of 2.0 s?

How many electrons are necessary to produce 1.0 c of negative charge? (e = 1.60 Ã 10-19 c) ?

A car is traveling at 64 ft/s when the brakes are fully applied, producing a constant deceleration of 18 ft/s2. What is the distance covered before the car comes to a stop? (Round your answer to one decimal place.)