Linear momentum is a vector quantity defined as the product of an object’s mass and it's velocity
Answer:
In a distance-time graph, time is on the horizontal axis, or x-axis, and distance is on the vertical axis, or y-axis. As an object moves, the distance it travels increases with time. ... You can use the steepness, or slope, of a line in a distance-time graph to determine the speed of an object if speed is constant.
Explanation:
Answer:
Electromagnetic waves are transverse waves that consist of a combined magnetic and electric effect.
Explanation:
wth :^)
The four most common gases in dry air are nitrogen, oxygen, carbon dioxide, and water vapor.
The four most common gases in dry air are nitrogen, oxygen, carbon dioxide, and water vapor.
Nitrogen is the most abundant gas in dry air, making up about 78.6% of the air.
Oxygen is the second most abundant gas, accounting for approximately 20.9% of the air.
Carbon dioxide is present in small amounts, around 0.04%, but it plays an important role in the Earth's carbon cycle and climate. Water vapor, despite being a variable component, can make up around 0.5% of the air.
Learn more about common gases in dry air here:
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45.65 C
52.79 C
78.11 C
20.05 C
2.A current of 1.90 A flows through a wire. How many electrons pass through that wire in 1 second? The charge of an electron is 1.602 x 10^-19 C (1 point)
2.32 x 10^19 electrons
2.01 x 10^18 electrons
1.04 x 10^20 electrons
1.19 x 10^19 electrons
3.A battery of voltage 9.0 V produces a current of 17.5 mA across a circuit. What is the resistance of the circuit? (1 point)
433 Ohms
514 Ohms
701 Ohms
384 Ohms
4.A battery is marked as having a voltage of 12.0 V and is connected to a circuit that has a resistance of 5.0 Ohms. If the terminal voltage is 8.75 V, what is the internal resistance of the circuit? (1 point)
1.02 Ohms
1.86 Ohms
2.45 Ohms
1.36 Ohms
5.A 12.0 V battery is attached to a circuit with a resistor of 5.5 Ohms. The internal resistance of the circuit is 1.75 Ohms. What is the terminal voltage of the circuit? (1 point)
9.01 V
12.8 V
7.67 V
10.3 V
6.A resistor has a potential difference of 16.5 V across it. It develops thermal energy at 340 W. What is the current across the resistor? (1 point)
15.5 A
23.9 A
31.1 A
20.6 A
7.A 120 V potential difference goes through a light bulb. The wattage of the bulb is 70 W. What is the resistance of the bulb? (1 point)
206 Ohms
114 Ohms
378 Ohms
256 Ohms
8.What is the equivalent resistance in this circuit? (1 point)
26 Ohms
13 Ohms
32 Ohms
18 Ohms
9.What is the equivalent resistance in this circuit? (1 point)
2 Ohms
5 Ohms
1.25 Ohms
3 Ohms
10.A tightly coiled spring has 70 coils, each coil has a diameter of 2.5 cm. The coil is made of conducting cylindrical wire that has a diameter of 3.0 mm. If an ohmmeter records the resistance across this wire as 2.70 Ohms, what is the resistivity of the wire? (1 point)
0.120
0.036
0.089
0.051
Answer:
1. 45.65
2. 1.19x10^19
3. 514OHM
4. 2.45 ( NOT 1.86 OR 1.36)
6. 20.06A
7. 206 ohms
8. 13 Ohms
9. 2 ohms
10. 0.051 ( NOT 0.036 OR 0.089)
Explanation:
I've struggled with both problems 4 and 10
Answer: did you get the answers?
Explanation: