Physics, 02.11.2020 07:00 niniaalvarez
A refrigerator has a power of 90 W and is left on for 24 hours. A hair dryer has
a power of 900 W and is on for 20 minutes. Which statement correctly
compares the energy used by these devices?
A. The refrigerator uses 6,696,000 J more than the hair dryer.
B. The refrigerator uses 3,224,000 J less than the hair dryer.
C. The refrigerator uses 7,776,000 J more than the hair dryer.
O
D. The refrigerator uses 1,080,000 J less than the hair dryer.
Answers: 1
Physics, 22.06.2019 00:30
There are weak or strong attractive forces between atoms of liquids with a high viscosity
Answers: 3
Physics, 22.06.2019 10:00
What is the temperature in degrees celsius of a substance with a tempature of 49k
Answers: 2
Physics, 22.06.2019 10:30
Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?
Answers: 1
Physics, 22.06.2019 11:00
A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?
Answers: 3
A refrigerator has a power of 90 W and is left on for 24 hours. A hair dryer has
a power of 900 W a...
Computers and Technology, 30.11.2021 17:50
Business, 30.11.2021 17:50
Physics, 30.11.2021 17:50
Biology, 30.11.2021 17:50
Computers and Technology, 30.11.2021 17:50
History, 30.11.2021 17:50
Business, 30.11.2021 17:50
Business, 30.11.2021 17:50