A roller coaster is at the top of a hill and rolls to the top of a lower hill. if mechanical energy is conserved on the top of which hill in the kinetic energy of the roller coaster large

A line or region of calm water where waves should be is explained by: refraction interference diffraction

A conveyer belt moves a 40 kg box at a velocity of 2 m/s. What is the kinetic energy of the box while it is on the conveyor belt? 40 J 80 J 160 J 1,600 J

What is the Coriolis effect? A The rising of warm air, causing low pressure B The falling of cool air, causing high pressure C The bending of wind because of Earth's rotation D Local convection currents that occur at the coast, causing sea and land

In what part of the earth does convection occur?

Which of the following is true? A PLant cells are unaffected when water is scarce B Some substances must be dissolved in water before they can be used C Water is important to some organisms D All organisms obtain water through food

A charge particle moving through a magnetic field experiences a magnetic force. What is the angle between the magnetic field and the force on the particle?

To which period in the periodic table does chlorine belong?

Bus A and Bus B leave school on a field trip when a stopwatch reads zero. Bus A travels at a constant 50 km/h, and Bus B travels at a constant 75 km/h. How far are the two buses from school when the stopwatch reads 1.5 h?. a ... Bus A is 76.

When observed from Earth, the wavelengths of light emitted by a star are shifted toward the red end of the electromagnetic spectrum. Why does this redshift occur?

Object A has a length of 3 cm, a width of 10 cm, and a height of 2 cm. Object B is dropped into a graduated cylinder. It displaces 60 mL of water. The volume of object A is: