The speed and direction of an object's motion is called its _. A. force B. velocity C. acceleration D. momentum 相关知识点: 试题来源: 解析 B。物体运动的速度和方向被称为速度。A 选项力;C 选项加速度是速度的变化率;D 选项动量是质量和速度的乘积。
on the first and the second reflected signals, respectively; and an information processor programmed to receive the first and second information signal from the signal source and to determine bearing information for the object based on a phase difference between the first and second information signal...
uniform – Speed or acceleration that is constant and unchanging. velocity – A measure of the speed and direction of a moving object. Teacher notes This animated graph shows the stopping distances of a car travelling at different speeds. Roll over the individual bars to show the separate ...
速度（velocity）是矢量，有大小和方向。速率（speed）是标量，只有大小。
It is a device for measuring the speed and direction of rotation of an object (3), close to which it is placed. It comprises: - a magnetic detection device (2) which delivers, in response to a rotation of the object (3), generating a magnetic field variation, the signals representative...
The velocity is the important parameter in physics used to identify the object speed and direction of motion. The velocity of the unknown object can be calculated from the known value of momentum. The velocity is expressed by v=dt where v is the velocity, d is the displacement of the ...
Neural dynamics of motion grouping: from aperture ambiguity to object speed and direction A neural network model of visual motion perception and speed discrimination is developed to simulate data concerning the conditions under which components ... J Chey,S Grossberg,E Mingolla - 《Journal of the ...
Learn how to change a clip's speed, duration, and timing using the Rate Stretch tool and Time Remapping technique.
The first experiment addressed how local motion signals are combined to determine the speed of an object in motion. Observers judged the speed of a moving cloud of dots that took a random walk in direction while the dots inside the cloud moved somewhat independently of the cloud itself. The ...
a女生或男生 Female student or male student[translate] aRadar is an object-detection system which uses radio waves to determine the range, altitude, direction, or speed of objects. 雷达是使用无线电波确定对象的范围、高度、方向或者速度的对象侦查系统。[translate]...