In this article, we'll find out what causes rip currents, how you can recognize them and what you should do if one takes you out to sea. A rip current is a narrow, powerful current of water running perpendicular to the beach, out into the ocean. These currents may extend 200 to 2,500 feet (61 to 762 m) lengthwise, but they are typically less than 30 feet (9 m) wide. Rip currents can move at a pretty good speed, often 5 miles per hour (8 kph) or faster.
Confidence votes 32.9K. Room temperature is around 70Â°F so anything colder could be called cold. A refrigerator usually is below 45Â°F and water freezes at 32Â°F so between those temperatures water certainly is cold. 2 people found this useful.
To measure the temperature: 1  Fridge: put the thermometer in a glass of water. 2  Check the temperature during the first door opening after not using the fridge for 8 hours or more (such as overnight). 3  Freezer: put thermometer between two bags of vegetables and as above check after 8 hours or more.he Knowhow. 1  A fridge should have a temperature of between 37Â°F(3Â°C) and 40Â°F (5Â°C). 2  Any higher and the food will go off, any lower and youâll lose nutrients and fresh food can be ruined.