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Is a positive plus a negative make a positive or a negative?
Positive + Negative = Negative Negative + Negative = Positive Positive + Positive = Positive Negative + Positive = Negative
What is negative shear and Positive shear in beams?
The difference between a positive shear and a negative shear is the direction the beam is distorted into. A force that tends to shear the left portion of the beam upward with respect to the right portion is said to produce a positive shearing force.
How is dividing integers similar to multiplying integers with the resulting sign?
The rules for the sign (positive or negative) of the result of a multiplication is the same as division. For multiplication: Positive * Positive --> Positive Positive * Negative --> Negative Negative * Positive --> Negative Negative * Negative --> Positive For division: Positive / Positive --> Positive Positive / Negative --> Negative Negative / Positive --> Negative Negative / Negative --> Positive
How are multiplying integers and dividing integers alike?
a negative x a negative= a positive, a positive x a positive= a positive, a negative x a positive= a negative, and a positive x a negative= a negative. Same thing with division. a negative divided by a negative= a positive, a positive divided by a positive= a positive, a negative divided by a positive= a negative, and a positive divided by a negative is a negative. U see?
What is negative seven in Parentheses to the second power?
positive 49 Because a negative times a negative is a positive. -7*-7=49. positive * positive = positive negative * negative= positive positive * negative = Negative
Why is gravitational potential always negative?
because gravity is a force that acts down on an object. In physics up is positive and down is negative
What is negative and positive gravity?
"Negative gravity" is not a scientific concept. Gravity is a fundamental force of attraction between masses. "Positive gravity" is simply the normal gravitational force experienced on Earth, pulling objects towards the center of the planet.
Why the gravitational force is a negative value?
Gravitational force is a vector quantity, meaning it has both magnitude and direction. The negative sign indicates that the force acts in the opposite direction to the reference direction chosen, typically taking downward as positive. This convention helps to easily incorporate the effects of gravitational forces in mathematical equations.
What is Mass and Charge?
Mass of a body is a positive quantity. The gravitational force between two masses is always attractive. Electric charge can be positive or negative or zero.
Why gravitationalforce is taken negative in projectile motion?
Gravitational force is typically considered negative in projectile motion because it acts in the opposite direction to the motion of the projectile, which is usually taken as the positive direction. By defining gravity as negative, the equations of motion can be set up to account for the downward force experienced by the projectile due to gravity.
Why does an electric force stronger than gravitational force?
The electric force is stronger than the gravitational force because electric charges can be positive or negative, allowing for attractive and repulsive interactions, while gravity is always attractive. Additionally, the strength of the electric force is determined by the charge of the particles involved, which can be much larger than the masses involved in gravitational interactions.
Which universal force can repel as well as attract?
The universal force that can both repel and attract is the electromagnetic force. This force is responsible for interactions between charged particles, where like charges repel each other and opposite charges attract each other.
What force gravitational or electrical repels as well as attracts?
The electrical force can repel as well as attract. Like charges (positive-positive or negative-negative) repel each other, while opposite charges (positive-negative) attract each other. An example of this is when two positively charged particles repel each other, but a positively charged particle and a negatively charged particle attract each other.
When can you used the positive acceleration due to gravity and negative acceleration due to gravity?
You can use positive acceleration due to gravity when an object is moving in the direction of the gravitational force, like when it is falling towards the ground. Negative acceleration due to gravity is used when an object is moving opposite to the direction of the gravitational force, like when it is moving upwards against gravity.
A force is applied to the right is positive or negative?
It is positive
The gravitational force is always attractive while the electric force is both attractive and repulsive. what accounts for this difference?
All mass has the same sign, while electric charge can be either positive or negative.
Why is going downstairs negative work?
As you walk down the stairs, you apply a force to keep yourself from falling down the stairs. The force is in the upward direction, but your movement is in the downward direction. If the force is in the opposite direction of motion, work done by the force is negative. Gravitational force, because it pulls down, does positive work.
