A spy is running across the bridge of an aircraft carrier. The spy is moving with a velocity of - 4 m/s relative to the carrier. However, the aircraft carrier is moving with a velocity of 12 m/s. There is a person standing stationary on a beach watching the event. What will be the velocity of the spy according to the person on the beach? 8 m/s 6 m/s -4 m/s -7 m/s

The  correct option is  A

Explanation:

From the question we are told that

   The  velocity of the spy relative  to the carrier is  

    The  velocity of  the aircraft carrier is  

Generally the velocity of the spy according to the person standing stationary on the beach is mathematically represented as

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas