Answer:
Yes
Explanation:
Neglecting air resistance, the total mechanical energy of the system would be conserved because the two forces acting on the weight are the spring force and the gravitational force, and both are conservative in nature.
Answer:
If the mass of Earth were increased by a factor of 2.00, the force between Earth and the Sun would increase by a factor of 2.00 as well.
Explanation:
The gravitational force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. The formula for gravitational force (F) is given by:
F = (G * m1 * m2) / r^2
Where:
F = gravitational force
G = gravitational constant (a constant value)
m1 = mass of the first object
m2 = mass of the second object
r = distance between the centers of the two objects
If the mass of Earth is increased by a factor of 2.00 (meaning it becomes 2 times its original mass), we can denote the original mass of Earth as "M" and the increased mass as "2M."
Now, let's calculate how the force between Earth and the Sun changes:
Original force (F1) = (G * M * Msun) / r^2
New force (F2) = (G * 2M * Msun) / r^2
Now, we can find the ratio of the new force to the original force:
F2 / F1 = [(G * 2M * Msun) / r^2] / [(G * M * Msun) / r^2]
Notice that the gravitational constant (G), distance (r), and the mass of the Sun (Msun) are the same in both equations and cancel out when calculating the ratio. Therefore, you're left with:
F2 / F1 = (2M) / M = 2
So, if the mass of Earth were increased by a factor of 2.00, the force between Earth and the Sun would increase by a factor of 2.00 as well.
Answer:
The motion graph provided represents the displacement of a toy train over time. The graph consists of two distinct segments: an initial period of constant velocity followed by a period of rest.
From the given information, we can determine that the train starts from a position of 2.0m north. This means that at t=0 (the beginning of the graph), the train is located 2.0m north of its starting point.
The first segment of the graph shows a straight line with a positive slope, indicating constant velocity. Since the train is moving north, the positive slope suggests that it is moving in the positive direction along the y-axis. The steeper the slope, the greater the velocity.
The second segment of the graph shows a horizontal line, indicating that the train is at rest. During this period, the train does not undergo any displacement and remains stationary.
To determine the total displacement of the train, we need to calculate the area under the graph. In this case, we have two separate areas to consider: one for each segment.
For the first segment, which represents motion, we can calculate the area by finding the area of a triangle. The formula for calculating the area of a triangle is A = 1/2 * base * height. In this case, the base corresponds to the time interval and the height corresponds to the displacement.
Let's assume that each unit on both axes represents 1 second and 1 meter, respectively. From the graph, we can estimate that the time interval for the first segment is approximately 4 seconds and that the displacement is approximately 8 meters (from t=0 to t=4). Therefore, using our formula, we can calculate:
A = 1/2 * 4s * 8m = 16m²
So, during this period of motion, the train has a displacement of 16 meters.
For the second segment, which represents rest, the train does not undergo any displacement. Therefore, the area under the graph is zero.
To calculate the total displacement of the train, we sum up the areas from both segments:
Total displacement = 16m² + 0m² = 16m²
Hence, the total displacement of the toy train is 16 meters.
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The force of gravity is the force with which massively large objects such as the earth attracts another object towards itself. All objects of the earth exert a gravity that is directed towards the center of the earth. Therefore, the force of gravity of the earth is equal to the mass of the object times acceleration due to gravity and also equal to the weight of the object.
F = ma
since F = W
W = ma
Answer:
Force = Mass x Acceleration
Explanation:
Force - The units of force = Newtons( N)
Mass - The units of mass = Kilograms (Kg)
Acceleration - Units of acceleration = (m/s2)
Andrew's displacement while visiting his grandparents is 35 miles to the east.
The displacement is the shortest distance travelled by the particle. It is the vector quantity which represents both the magnitude and direction.
Given Andrew drives to his friend's house, which is 60 miles to the east. After visiting, he travels 25 miles to the west to visit his grandparents.
The displacement will be
60 miles to the east - 25 miles to the west = 35 miles to the east
Thus, the Andrew's displacement is 35 miles to the east.
Learn more about displacement.
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A.
They were told that they weren’t really stutterers.
B.
They were told that they had very severe cases of stuttering.
C.
They were told that stuttering could be overcome with practice.
D.
They were told that their parents were responsible for their stuttering.
Please select the best answer from the choices provided
A
B
C
D
B. They were told that they had very severe cases of stuttering.
The Monster Study was conducted by Dr. Wendell Johnson to learn more about why children developed a stutter and to see if stuttering was a result of learned behavior. However, there are several ethical problems with the the Monster study.
In this study, psychologists tell the group of orphans who did not suffer from stuttering that they had very severe cases of stuttering.
For more information:
Answer:
They were told that they had very severe cases of stuttering.
Explanation:
The monster study conducted in 1939 was a certain stuttering experiment that was done by Wendell Johnson on 22 Orphan at the University of Iowa, United States. Eleven of the children got positive speech therapy while the other half was seen to have negative speech therapy which belittled them for their speech imperfections.
The experiment was called monster because many people were horrified that such experiments could be done on children who were orphans.
Question 2 options:
True
False