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Will a gas balloon in which the buoyant force is greater than its weight and air resistance accelerate?
Yes, according to Newton's 2nd Law of Motion, which says that the net force acting the object (F) is equal to the product of the mass of object (m) and its acceleration (a). As long as F is non-zero, a will be finite. ======================================
Does change in direction cause acceleration?
Yes, a change in direction does result in acceleration, specifically in the form of centripetal acceleration. This acceleration is directed towards the center of the circular path and is essential for an object to maintain its curved trajectory.
What changes in motion can produce acceleration?
Changes in speed, changes in direction, and both combined can produce acceleration in an object's motion. Acceleration occurs when there is a net force acting on an object, causing it to speed up, slow down, or change direction.
The result of the combined forces on an object?
The result of the combined forces on an object is called the net force. This net force determines the object's acceleration according to Newton's second law of motion, F = ma, where F is the net force, m is the object's mass, and a is its acceleration.
How an object changes direction when a force is applied to it is called what?
The change in direction of an object when a force is applied to it is called "acceleration." The acceleration of an object depends on the magnitude and direction of the force, as well as the mass of the object.
If cyan magenta and green lights are projected onto the same white area the combined effect is?
cyan, magenta and green lights are projected onto the same white area, the combined effect is:
If 3 resistors of 56 12 and 33 ohms are in parallel what is there combined resistance?
The combined resistance is 7.6049 ohms.
What is the meaning of the term impedance?
it is combined effect of resistance and inductance
Why is resistance less when resistors are join in parallel?
What do you mean? In a parallel circuit, the combined (or effective) resistance is less than any individual resistance.
Will a gas balloon in which the buoyant force is greater than its weight and air resistance accelerate?
Yes, according to Newton's 2nd Law of Motion, which says that the net force acting the object (F) is equal to the product of the mass of object (m) and its acceleration (a). As long as F is non-zero, a will be finite. ======================================
What resistance must be connected in parallel to 6.0-ohm resistor to reduce the combined resistance to 15-ohm?
No such resistor exists. Any resistor placed in parallel with a 6.0 ohm resistor is going to reduce the combined resistance below 6.0 ohms.
How are resistance combined in a series circuit?
Resistances are additive in a series circuit.
When a 1 ohm resistor and a 1 ohm resistor are connected in series what is their conbined resistance?
The combined resistance will be 2 Ohms.
What is the combined resistance of a 39k and a 47k resistor connected in series?
86k. Resistance in series is the sum of the individual resistors.
Why is resistance more in parallel combination?
Resistors in parallel have a LOWER combined resistance than either alone, not a higher one.
4 How do you determine current in a parallel DC circuit?
The current in each individual component of the parallel circuit is equal to (voltage across the combined group of parallel components) / (individual component's resistance). The total current is the sum of the individual currents. ============================== Another approach is to first calculate the combined effective resistance of the group of parallel components. -- take the reciprocal of each individual resistance -- add all the reciprocals -- the combined effective resistance is the reciprocal of the sum. Then, the total current through the parallel circuit is (voltage across the parallel circuit) / (combined effective resistance of the components).
Why are resistances parallel to short circuits neglected in a circuit?
You can consider a short circuit to be a resistor with R=0 Ohms. It is then clear by the equation for calculation of parallel resistance that the combined resistance of a resistor in parallel to a short circuit is 0. Consider the following example with R1= 1k Ohms and R2= 0 Ohms: Rtotal = R1*R2 / (R1+R2) = R1*0 / R1 = 0 Ohms.
