Part A An electron is to be accelerated from a velocity of 3.50x106 m/s to a velocity of 9.50x106 m/s. Through what potential difference must the electron pass to accomplish this? Express your answer in volts. V - V2 = V
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 alt="Part A
An electron is to be accelerated from a velocity of 3.50x106 m/s to a velocity of 9.50x106 m/s. Through what potential difference must the electron pass
accomplish
this?
Express your answer in volts.
?
V1 – V2 =
V
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
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- A capacitor consists of two parallel plates, each with an area of 14.0 cm², separated by a distance of 0.250 cm . The material that fills the volume between the plates has a dielectric constant of 6.00. The plates of the capacitor are connected to a 400 V battery. Part A What is the capacitance of the capacitor? Express your answer in farads. VE ΑΣΦ C = Submit Part B What is the charge on either plate? Express your answer in coulombs. VE ΑΣΦ Q = Submit Part C Request Answer U = Request Answer How much energy is stored in the charged capacitor? Express your answer in joules. 17| ΑΣΦ ? ? ? F JAn electron starts from rest 33.0 cm from a fixed point charge with Q = -0.105 μC. Part A How fast will the electron be moving when it is very far away?Part A In proton-beam therapy, a high-energy beam of protons is fired at a tumor. The protons come to rest in the tumor, depositing their kinetic energy and breaking apart the tumor's DNA, thus killing its cells. For one patient, it is desired that 0.10 J of proton energy be deposited in a tumor. To create the proton beam, the protons are accelerated from rest through a 15 MV potential difference. What is the total charge of the protons that must be fired at the tumor to deposit the required energy? Express your answer with the appropriate units. Value = b6 Units Submit Request Answer Provide Feedback II
- ▾ Part C What is the electric potential at point A? Express your answer numerically in volts. View Available Hint(s) VA = [5] ΑΣΦΑΛΟ 15. t BWA 2. ? VPart B A dielectric with K = 3.40 is inserted between the plates of the capacitor, completely filling the volume between the plates. Now what is the maximum magnitude of charge on each plate if the electric field between the plates is not to exceed 3.00x104 V/m? Express your answer with the appropriate units. µA ? Q = Value UnitsTwo very large charged parallel metal plates are 15.0 cm apart and produce a uniform electric field of 3.40 10 N/C between them.A proton is fired perpendicular to these plates with an initial speed 5.20 km/s, starting at the middle of the negative plate and going toward the positive plate. Part A How much work has the electric field done on this proton by the time it reaches the positive plate? Express your answer with the appropriate units. W M Value Units Submit Request Answer
- Part A An electron is moving east in a uniform electric field of 1.47 N/C directed to the west. At point A, the velocity of the electron is 4.46x105 m/s pointed toward the east. What is the speed of the electron when it reaches point B, which is a distance of 0.395 m east of point A? Express your answer in meters per second. V₁ = Submit Part B || ΑΣΦ ← Request Answer 给 ΑΣΦ A p=1.73.104 Ć A proton is moving in the uniform electric field of part A. At point A, the velocity of the proton is 1.92x10 m/s, again pointed towards the east. What is the speed of the proton at point B? Express your answer in meters per second. C 16 ? Submit Previous Answers Request Answer ? m/s * Incorrect; Try Again; 29 attempts remaining m/sThe electric potential in a region of space is V = 300V-m, where and y are in meters. √z²+y² Part A What is the strength of the electric field at (x, y) = (2.9m, 1.3m)? Express your answer in volts per meter. E= Submit Part B 0= V=| ΑΣΦΑ Submit 4 Request Answer IVE ΑΣΦ What is the direction of the electric field at (x, y) = (2.9m, 1.3m)? Give the direction as an angle ccw from the positive x-axis. Express your answer in degrees. ? Request Answer V/m ? ºccw from the positive z-axisLearning Goal: To understand the relationship and differences between electric potential and electric potential energy. In this problem we will learn about the relationships between electric force F, electric field Ē, potential energy U, and electric potential V. To understand these concepts, we will first study a system with which you are already familiar: the uniform gravitational field. Part B Now find the gravitational potential energy U (z) of the object when it is at an arbitrary height z. Take zero potential to be at position z = 0. Keep in mind that the potential energy is a scalar, not a vector. Express U (2) in terms of m, z, and g. U (z) = Submit ΨΕ ΑΣΦ Request Answer ?
- Part A Near the surface of the Earth there is an electric field of about 150 V/m which points downward. Two identical balls with mass 0.467 kg are dropped from a height of 2.37 m, but one of the balls is positively charged with g = 412 µC , and the second is negatively charged with q2=-412 µC. Use conservation of energy to determine the difference in the speeds of the two balls when they hit the ground. (Neglect air resistance.) Express your answer using three significant figures. V AEO ? V4 -v_ = m/s Submit Request AnswerPart A What is the escape speed of an electron launched from the surface of a 1.4-cm-diameter glass sphere that has been charged to 5.0 nC ? Express your answer to two significant figures and include the appropriate units. HA m v = 2.258 • 107 V = SRevie Part A A capacitor consists of two 4.1-cm-diameter circular plates separated by 1.0 mm. The plates are charged to 160 V, then the battery is removed. How much energy is stored in the capacitor? Express your answer in joules. να ΑΣφ Uc = J. %3D Submit Request Answer Part B How much work must be done to pull the plates apart to where the distance between them is 2.0 mm? Express your answer in joules. ΥΠ ΑΣΦ W = J Submit Request Answer