In the following ways the first law of thermodynamics affects lives: We convert the chemical energy present in the food to kinetic energy when... View Article
The area under the velocity-time graph will give us the magnitude of the displacement. This is because of displacement = velocity × time. The... View Article
The orbital velocity needed to maintain a stable low Earth orbit is about 7.8 km/s, but the velocity reduces with increased orbital altitude. The... View Article
The relationship between escape velocity and orbital velocity is given by the following relationship: From this, we can conclude that escape... View Article
The impulse experienced by an object is the product of force and time. The momentum change of an object is the product of mass and velocity. The... View Article
Velocity is the rate of change of the object’s position with respect to a frame of reference and time. Following are some examples of the... View Article
‘Doppler effect in physics is defined as the increase (or decrease) in the frequency of sound, light, or other waves as the source and observer... View Article
Yes, the Doppler effect depends on the distance. The sound frequency is higher when the distance is closer between the observer and the source... View Article
The variation of the sound of the engine revving in a motor car best describes the Doppler effect. Consider a scenario where person A and person... View Article
The Doppler Effect in ultrasound measures the blood flow. The Doppler principle states that the frequency of reflected ultrasound is altered by a... View Article
Yes, the Doppler effect is applicable to light too. Doppler effect of light can be described as the apparent change in the frequency of the light... View Article
Doppler effect is the apparent change in the frequency of waves due to the relative motion between the source of the sound and the observer. We... View Article
Stress does not depend on Young’s modulus in the elastic region. Hooke’s law states that stress is directly proportional to the strain within the... View Article
Consider a collision between object A and object B. For such collision, the force between the objects is equal in magnitude and opposite in... View Article
The mesosphere is the layer of atmosphere that lies above the stratosphere. Mesosphere is the coldest part of the atmosphere. Not much has been... View Article
When you increase the frequency of a sound wave, the sound waves get compressed and we hear the sound at a faster rate. The pitch of the sound... View Article
