Waves that move matter back and forth are called a.transverse waves b.longitudinal wave c. Medium wave
The 3 blocks north and the 3 blocks south cancel each other, and contribute nothing to the displacement. The total displacement is 3 blocks east.
B. pulley
C. wedgd
D. inclined plane
The inclined plane is the best simple machine to assist with moving heavy objects into a truck. It allows for less force to be used by distributing the required force over a longer distance.
The simple machine that is best suited to assist with the task of moving heavy objects into a moving truck 1.5 meters above the ground is the inclined plane (option D).
An inclined plane is a flat surface that is inclined or sloped, which allows us to move objects up or down with less force. By using an inclined plane such as a ramp, we can reduce the amount of force needed to lift the heavy objects into the truck.
For example, instead of trying to lift a heavy object straight up into the truck, which would require a significant amount of force, we can use an inclined plane to gradually raise the object by pushing it up the inclined surface. This allows us to distribute the required force over a longer distance, making it easier to move the object.
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revolution of Earth around the Sun
Earth’s elliptical orbit in space
moon’s orbit around Earth
The movement causes day and night on Earth is the rotation of Earth.
The rotation is the spinning around of an object about its own axis passing through the center.
When the Earth rotates about its own axis, the rotation completes in 24 hours. This causes the day to night and night to day. When the part of Earth is in front of Sun, there is day. But, when the same part of Earth goes away from the Sun, the sunset occurs and then eventually night occurs.
Thus, the movement causes day and night on Earth is the rotation of Earth.
Learn more about rotation.
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The movement that causes day and night on Earth is the rotation of the earth on its axis, which is in option a as the earth rotates from west to east, completing one full rotation in approximately 24 hours.
As the Earth rotates, the side facing the sun experiences daylight, while the opposite side facing away from the sun experiences nighttime. This rotation creates the cycle of day and night that we observe on Earth. The other movements mentioned, such as the revolution of Earth around the Sun, Earth's elliptical orbit in space, and the moon's orbit around Earth, are not directly responsible for causing day and night.
Learn more about the earth's rotation here.
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A. charge B. resistance C. Voltage
must be
A. Negative
B. Zero
C. Positive
If an electric circuit has zero Ampere (0A) of current running through it, then the voltage must be zero.
Ohm's law states that the current flowing through an electric circuit is directly proportional to the voltage (potential difference) applied across the two terminals of an electric circuit and inversely proportional to the resistance in the electric circuit, at a constant temperature.
This ultimately implies that, the value of voltage (potential difference) is highly dependent on the value of the current running through an electric circuit.
Mathematically, Ohm's law is given by this formula;
Where:
In conclusion, if an electric circuit has zero Ampere (0A) of current running through it, then the voltage must be zero.
Read more on Ohm's law here: brainly.com/question/796939
Answer:
1. Option C: Voltage
2. Option B: Zero
Explanation:
According to Ohm's law, the current in a circuit is directly proportional to the voltage. This means, when there is potential difference across the two ends of a circuit, then only current flows.
I ∝ V
If the given circuit has 0 A current, it means that either potential is zero or resistance is infinite. Practically, we cannot have infinite resistance. This means that the voltage must be zero.