The gravitational potential energy of an object with a mass of 2 kilograms at a height of 5 meters is ___ joules. A. 98 B. 100 C. 120 D. 150 相关知识点: 试题来源: 解析 B。解析:重力势能公式为 Eₚ = mgh,m = 2kg,g = 9.8N/kg,h = 5m,代入可得 Eₚ = 2×9.8×5 = 98...
The potential energy of a body of mass m is given by Ep = –mgx + 1/2kx2. The corresponding force is: A. –mgx2/2 + kx3/6 B. mgx2/2 – kx3/6 C. –mg + kx/2 D. –mg + kx E. mg – kx 相关知识点: 试题来源: 解析 E ...
Steps to Calculate the Spring Potential Energy of an Object Step 1: Identify the spring constant of the spring. Step 2: Identify the distance the spring is compressed or pulled. Step 3: Using the formula for spring potential energy, calculate the potential energy of the spring. Vocabulary...
Potential energy is the energy,chemical or physical,stored within an object,atom or molecule(分子).Think about a car at the top of a roller-coaster (过山车),pausing just before it slopes into the next turn.A log resting in a fireplace just before it is about to be lit is a treasure ...
Answer and Explanation:1 The gravitational potential energy when an object is falling is given by {eq}\displaystyle \Delta GPE =mg \Delta h {/eq} where {eq}m {/eq} is...
A. a 1 kg book on a table 1 meter high B. a 2 kg book on a table 2 meters high C. a 3 kg book on a table 3 meters high D. a 4 kg book on a table 4 meters high 相关知识点: 试题来源: 解析 D。重力势能(gravitational potential energy)的公式是 Ep 反馈...
依据在第一小节第一句话中: Potential energy is the energy,chemical or physical,stored within an object, atom or molecule(分子),译为:势能是一种以物理或者化学的形式储存在物体原子或者分子内部的能量。72. releasing (词性转换)。依据在第一小节中 : As the log burns, the connections betweencarbon ...
TO DETERMINE THE POTENTIAL ENERGY OF AN ELECTRON IN A GIVEN ORBIT OF RADIUS r - ScienceDirectELSEVIERAtomic and Nuclear Chemistry
What is gravitational potential energy and what does it do to an object? An 8.8 kg object is falling from a height of 1.9 m at 1.57 m/s. What is the total energy of the object? A satellite of mass m is in a circular earth orbit of radius r. (a) Give an algebraic e...
Answer to: The potential at point P in an electric field is 416 V. What is the electrical potential energy of a proton placed at P, in eV and in...