Which investigation shows the transfer of heat energy in the absence of matter?(1 point)
Responses
Using a current through fluid to investigate radiation
Using a current through fluid to investigate radiation
Using electromagnetic waves to investigate radiation
Using electromagnetic waves to investigate radiation
Using particle movement through a solid to investigate conduction
Using particle movement through a solid to investigate conduction
Using particles in space colliding to investigate conduction
Using particles in space colliding to investigate conduction
5 answers
Using electromagnetic waves to investigate radiation.
Simone has a mug of hot tea at a temperature of 90°C. She sets the mug on a counter in a room with an air temperature of 30°C. What is most likely to happen to the temperature of the hot tea?(1 point)
Responses
The hot tea will transfer thermal energy into the air, and the energy transfer will continue until the tea is at room temperature.
The hot tea will transfer thermal energy into the air, and the energy transfer will continue until the tea is at room temperature.
The hot tea will transfer thermal energy into the air and will continue to transfer energy until they are both 90°C.
The hot tea will transfer thermal energy into the air and will continue to transfer energy until they are both 90°C.
The air will transfer thermal energy into the tea, and the energy transfer will continue until the tea is at room temperature.
The air will transfer thermal energy into the tea, and the energy transfer will continue until the tea is at room temperature.
The air will transfer thermal energy into the tea and will continue to transfer energy until they are both 90°C
Responses
The hot tea will transfer thermal energy into the air, and the energy transfer will continue until the tea is at room temperature.
The hot tea will transfer thermal energy into the air, and the energy transfer will continue until the tea is at room temperature.
The hot tea will transfer thermal energy into the air and will continue to transfer energy until they are both 90°C.
The hot tea will transfer thermal energy into the air and will continue to transfer energy until they are both 90°C.
The air will transfer thermal energy into the tea, and the energy transfer will continue until the tea is at room temperature.
The air will transfer thermal energy into the tea, and the energy transfer will continue until the tea is at room temperature.
The air will transfer thermal energy into the tea and will continue to transfer energy until they are both 90°C
The hot tea will transfer thermal energy into the air, and the energy transfer will continue until the tea is at room temperature.
Step 1: 4x + 5 < 6x + 1 (Given)
Step 2: −2x + 5 < 1 (Subtraction)
Step 3: −2x < 6 (Addition)
Step 4: x > −3 (Division)
Mia is trying to find her mistake in the problem shown. In which step did she first make a mistake?
Responses
A Step 1Step 1
B Step 2Step 2
C Step 3 Step 3
D Step 4
Step 2: −2x + 5 < 1 (Subtraction)
Step 3: −2x < 6 (Addition)
Step 4: x > −3 (Division)
Mia is trying to find her mistake in the problem shown. In which step did she first make a mistake?
Responses
A Step 1Step 1
B Step 2Step 2
C Step 3 Step 3
D Step 4
The incorrect step made by Mia is Step 3.
3 answers