Which object has the greatest kinetic energy? A a truck with a mass of 3,500 kg moving at 30 m/s

B a person with a mass of 73 kg running 6 m/s

C a locomotive engine with a mass of 205,000 kg moving 5 m/s

D a fast pitched baseball with a mass of .5 kg moving at 46.9 m/s

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors

The speed of light can be used to measure the

If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant