0
What else can I help you with?
Can refraction of light happen without changing the direction of light?
no. Energy is conserved.
Is it possible for a nonzero net force to act on an object without the object's speed changing?
Yes, it is possible for a nonzero net force to act on an object without changing its speed. This can happen if the force is acting perpendicular to the direction of motion, resulting in a change in direction but not speed (as in circular motion).
Can an object have a constant speed and a varying velocity?
Yes, an object can have a constant speed but varying velocity if it changes direction while moving at that speed. Velocity includes both speed and direction, so if an object is moving in a straight line at a constant speed but changing direction, then its velocity is constantly changing even though its speed remains the same.
What does moving randomly mean?
Moving randomly refers to changing direction or location without following a discernible pattern or predetermined path. It involves unpredictable movement without a specific goal or direction in mind.
Does dc current have hertz?
No, direct current (DC) does not have a frequency measured in hertz (Hz) because it flows in a single direction without changing polarity. Hertz is a unit of frequency typically used to describe alternating current (AC) that changes direction periodically.
Is changing direction really the same as changing speed?
No. It is possible to change direction without changing speed. However, it is not possible to change direction without changing velocity.
How can you change only one component of the velocity without changing the speed?
You can change the direction of the velocity without changing the speed. This can be done by adding or subtracting velocity components in different directions, while maintaining the magnitude of the velocity vector.
What are the 2 ways of changing the electroscope?
The two ways of changing an electroscope are by conduction and by induction. Conduction involves touching the electroscope with a charged object, while induction involves bringing a charged object close to the electroscope without touching it.
Can reflection of light happen without changing the direction of light?
No, reflection means that the direction of light is changed.
How do you accelerate without changing speed?
To accelerate without changing speed, you can change direction. Acceleration is the rate of change of velocity, which includes speed and direction. For example, a car moving at a constant speed on a curved path is constantly changing direction and therefore accelerating, even though its speed remains constant.
Can refraction of light happen without changing the direction of light?
no. Energy is conserved.
In which direction in a fluid at rest can you move without the pressure changing?
You can move vertically (up and down) in a fluid at rest without the pressure changing, as long as the fluid is in equilibrium and there are no density variations.
What does it mean to translate a vector?
Translating a vector is sliding it parallel to the axes - without changing its magnitude or direction.
Which machine changes the direction of force needed to do a task without changing the size of the force needed?
A pulley can do that.
What happens when velocity and acceleration are not in the same direction?
When velocity and acceleration are not in the same direction, the object's speed may be changing. If the acceleration and velocity are in opposite directions, the object will slow down. If they are at right angles to each other, the object will change direction without changing speed.
Which machine changes the direction of force needed to do a task without changing the size or force needed?
A pulley system is a machine that changes the direction of the force needed to do a task without changing the size or force needed. It allows you to pull downwards to lift an object upwards.
Which machine changes the direction of force needed to do a task without changing the size of force needed?
A pulley can do that.
