A.A kind of motion.B.A steady speed.C.The motion of a plane.D.An increase in speed. 答案 D[听力原文]What is the acceleration 注意听懂问题“What is the acceleration (什么是加速 )”结合听懂的“We can feel acceleration, an increase in speed.”得出D项正确。相关推荐 1 What is the accele...
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2.How can an object's acceleration be calculated using Newton's second law of motion? 3.According to Newton's third law of motion,how are the forces between interacting objects related? 相关知识点: 试题来源: 解析 1) Newton's first law rephase that an object in motion will tend to st...
Find the Acceleration in a Motion.We use the equation of motion to solve for the acceleration in a motion. The challenge for solving this problem is that we need to do the unit transformation correctly.Answer and Explanation: Become a Study.com member to unl...
Acceleration can be positive or negative. The vehicle's rapid deceleration prevented an accident. Speed The state of being in rapid motion; rapidity The river's speed made a rescue difficult. Speed A transmission gear or set of gears in a motor vehicle What speed is the car in now?. Speed...
During an experiment on motion, if an object is moving at a constant speed, what can we say about its acceleration? A. Acceleration is zero. B. Acceleration is positive. C. Acceleration is negative. D. Acceleration is changing. 相关知识点: ...
The science of physics deals with movement and motion. Acceleration, or the measurement of the change in speed over time, is one type of movement or motion that physics addresses. Think of a car pulling out of a parking space onto the road. Over an amount of time, the car speeds up, ...
The resulting oscillations o f the trolley are simple harmonic.The acceleration a o f the trolley is given by the expression。=-()×where x is the displacement o f the trolley from its equilibrium position.The mass o f the trolley is 840g.Calculate the frequency f o f oscillation o f...
Under theMotionsection, ensure thatEnhance pointer precisionisn’t checked. SelectOKto lock in your choices. It’s not entirely clear why Microsoft has labeled mouse acceleration as “Enhance pointer precision,” but that is indeed the mouse acceleration toggle. ...
An accelerometer is a device that measures the vibration, or acceleration of motion, of a structure. The force caused by vibration or a change in motion (acceleration) causes the mass to “squeeze” the piezoelectric material which produces an electrical charge that is proportional to the force ...