Well, hello there, friend! Waves are like happy little dancers moving through a medium. The velocity of a wave can change when it enters a new medium with a different density or elasticity. Just like how a gentle breeze might slow down when it meets a field of flowers, waves adjust their speed as they encounter new surroundings. It's all just a beautiful dance of nature, full of surprises and wonder.
False. A body traveling at constant speed does not change its velocity, which includes both speed and direction. Therefore, in order to change direction, the body would need to change its velocity, which also involves changing its speed.
A change in the medium through which the wave is traveling, like a change in material or temperature, can affect the speed of a mechanical wave. Additionally, a change in the tension or density of the medium can also impact the wave speed.
The velocity of a car traveling backwards would be negative, as it is moving in the opposite direction of its positive reference point.
Regardless of the direction being travelled, any object on the move has a positive velocity, even if it is moving backwards, because velocity is the measure of the rate of movement in a given direction. Compare: A car is traveling forwards on a highway at 100 km/h. How fast is it travelling? If it turns round (or even it doesn't turn round, but just reverses) and travels at 100 km/h, how fast is it travelling? The answer is 100 km/h in both cases. (But reversing on a highway and travelling at 100 km/h is not recommended!)
The magnitude of the velocity would reach 72 km/hr at around 5 seconds based on the graph shown. This is when the slope of the velocity-time graph is steepest, indicating the highest rate of change in velocity.
Electromagnetic waves change velocity in different mediums because the speed of light is determined by the properties of the medium it is traveling through. When light enters a different medium, its speed changes due to interactions with the atoms and molecules in that medium, affecting the wave's propagation. This change in speed is responsible for effects like refraction, where light bends as it passes from one medium to another.
False. A body traveling at constant speed does not change its velocity, which includes both speed and direction. Therefore, in order to change direction, the body would need to change its velocity, which also involves changing its speed.
zero - it is constat velocity. so acceleration is zero50 m/s2 Another : The acceleration is ZERO. Acceleration is defined as the change in velocity per unit time. If the ball is traveling a constant velocity over a two minute period, the acceleration would be zero since there is no change in velocity.
A change in the medium through which the wave is traveling, like a change in material or temperature, can affect the speed of a mechanical wave. Additionally, a change in the tension or density of the medium can also impact the wave speed.
The wavelength of waves travelling with the same speed would decrease if the frequency of the waves increases. This is because, speed of a wave is the product of the distance of the wavelength times the frequency of the wave. The velocity of a wave is usually constant in a given medium.
The wavelength of waves travelling with the same speed would decrease if the frequency of the waves increases. This is because, speed of a wave is the product of the distance of the wavelength times the frequency of the wave. The velocity of a wave is usually constant in a given medium.
The velocity of a car traveling backwards would be negative, as it is moving in the opposite direction of its positive reference point.
Regardless of the direction being travelled, any object on the move has a positive velocity, even if it is moving backwards, because velocity is the measure of the rate of movement in a given direction. Compare: A car is traveling forwards on a highway at 100 km/h. How fast is it travelling? If it turns round (or even it doesn't turn round, but just reverses) and travels at 100 km/h, how fast is it travelling? The answer is 100 km/h in both cases. (But reversing on a highway and travelling at 100 km/h is not recommended!)
The wavelength of waves travelling with the same speed would decrease if the frequency of the waves increases. This is because, speed of a wave is the product of the distance of the wavelength times the frequency of the wave. The velocity of a wave is usually constant in a given medium.
The wavelength of waves travelling with the same speed would decrease if the frequency of the waves increases. This is because, speed of a wave is the product of the distance of the wavelength times the frequency of the wave. The velocity of a wave is usually constant in a given medium.
The magnitude of the velocity would reach 72 km/hr at around 5 seconds based on the graph shown. This is when the slope of the velocity-time graph is steepest, indicating the highest rate of change in velocity.
An object can accelerate while still traveling at a constant speed if it changes direction. Acceleration is the rate of change of velocity, so even if the speed remains constant, a change in direction would still require acceleration.