handle with a force of 87 N, how much work is done?
The work done on the wagon is 3549 J
Explanation:
The work done by a force when moving an object is given by
where:
F is the magnitude of the force
d is the displacement
is the angle between the direction of the force and of the displacement
In this problem we have the following data:
F = 87 N is the magnitude of the force
d = 44 m is the displacement of the wagon
is the angle between the direction of the force and the displacement
Substituting, we find the work done
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Answer:
Medulla oblongata is lower part of brain.
Cerebrum and cerebellum are the upper hemispheres of the brain.
Explanation:
Cerebrum is the largest part of the brain and is composed of right and left hemispheres.
Cerebellum is the part of brain that lies inside the cerebellum.
Medulla Oblongata is lowest part of brain stem which is most vital part of the brain.
Thalamus is a small region of the brain located above the brain stem. Its main function is to transmit sensory signals to cerebral cortex.
Brain stem act as relay center connecting the cerebrum and cerebellum to the spinal chord.
Hypothalamus is the mid brain located near the pituitary glands. It is very small region of the brain but it plays an important role in maintaining the body temperature and releasing the hormones.
Answer:
Medulla oblongata: The bottom part of the brainstem helps regulate your breathing, heart rhythms, blood pressure and swallowing.
Explanation:
The motion of a car in relation to a reference point can be described by its position and direction. Speed can be determined by measuring the distance traveled in a specific time period.
A moving car can be an object in motion. In relation to a reference point, such as a stationary tree, the car's position and direction of motion can be described. For example, the car may be moving to the right of the tree.
To determine the car's speed, you can measure the distance it travels in a certain amount of time. For instance, if the car travels 100 meters in 10 seconds, its speed would be 10 meters per second (m/s).
In summary, by observing the position and direction of motion of an object in relation to a reference point, you can describe its motion. And by measuring the distance it covers in a given time period, you can determine its speed.
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False. The jet stream does not carry cold air to the tropics and warm air to the poles.
The jet stream is a high-altitude, fast-moving air current in the atmosphere that generally flows from west to east. It is caused by the temperature differences between the polar regions and the mid-latitudes.
In reality, the jet stream tends to separate cold polar air from warmer air in the mid-latitudes. It meanders and can have a significant impact on weather patterns, but its primary function is not to transport warm or cold air to the poles or tropics. Instead, it plays a crucial role in the development and movement of weather systems, affecting things like storm tracks and weather conditions in different regions.
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The jet stream does not carry cold air to the tropics or warm air to the poles.
The statement 'The jet stream carries cold air to the tropics and warm air to the poles' is false. The jet stream is a narrow band of strong wind in the upper atmosphere that flows from west to east. It generally moves air masses from west to east across the globe, but it does not carry cold air to the tropics or warm air to the poles. Instead, it helps distribute weather systems and influences the movement of storms.
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