URGENT HELP The electric motor in the car is powered by a battery.
To charge the battery, the car is plugged into the mains supply at 230 V

The power used to charge the battery is 6.9 kW
Calculate the current used to charge the battery.

Current=

Acricket ball of 70g moving with a velocity of 0.5 m/s is stopped by a player in 0.5s what is the force applied to stop the ball

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.

How much work would it take to move a coulomb charge across a 4 volt potential difference?