Serving at a speed of 220 km/h, a tennis player hits the ball at a height of 3.1 m and an angle 8 below the horizontal. The service line is 11.9 m from the net, which is 0.91 m high. Wha is the angle 6 such that the ball just crosses the net? Will the ball land in the service box, whose out line is 6.40 m from the net?

Q: in the figure below. What is the direction of the electrostatic (Coulomb) force acting on the…

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Q: B 36 in. 40 in. D 32 in. 27 in. 60 in.

A: Write the position vectors of points A, B, C, and D.

Q: The conventional direction of electric field, E, is a. no specific direction b. negative to positive…

A: The conventional direction of electric field, E, is a. no specific direction b. negativeto positive…

Q: Sl unit for electric field ) N/C M. N/m

A: Electric field is electric force per unit charge.

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Q: 1, = 10 A R, 40 R {42 R, $ 60 R. 60 R, 360

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Q: How many electrons must be removed from an electrically neutral silver dollar to give it a charge of…

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A: Given Define antistatic wrist strap, as following below.

Q: 4. Determine VxA of each of the following vector fields: a) A=xcos2rsin2y-ýsin 2xoos2y, for-r5x,ySt…

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Q: Two point charges exert a 4.95 N force on each other. What will the force become if the distance…

A: Initial force between two point charges is Fi=4.95 N Now, the distance between charges is increased…

Q: 3. Two charges (-2.09 × 10-18 C and +1.60 × 10-¹9 C) are separated by a distance of 4.01 x 10-¹0 m.…

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Q: If q2 = 93 = 94 = 1 nC and a = 1 m, then find the magnitude of q₁ (in nC) so that the net electric…

A: Givenq2=q3=q4=1 nCa=1mwe need to find magnitude of q1 to make net force on q4 zero.

Q: 1.) Determine the X and Y components of each force shown.

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Q: In a triad ground rod arrangement, the distance between the rods should be how many times greater…

A: The Triad Grounding Device from MH Corbin is a highly effective and cost-efficient grounding system…

Q: 1. In Ohm’s Law, if the resistance increases with constant voltage, then the current is 2.Mesh…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: . The field at the point directly between equal and opposite point charges is zero.  A. True B.…

A: Standard expression for the strength of electric field (E) is given as, E=kqr2 Here, k denotes the…

Q: 5. A negative charge of -9.0x10-6C exerts an attractive force of 14 N on a first charge that is away…

A: Given data: Let the first charge be represented by q1 Second charge, q2=-9×10-6 C Force, F=14 N…

Q: 2. A 9V battery is connected across a 2500 resistor. How much current in milliampere passes through…

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Q: 4. Three electric charges Q1, Q2 and Q3 are equally spaced from each other. The magnitudes of these…

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Q: 7.It shows the magnitude and direction of the force at different points in space. a.direction…

A: Force is a vector quantity which has both direction as well magnitude.

Q: 4. What is the physics behind a defibrillator and in which lesson/ topic is it an application of?

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Q: Objects can be charged by the transfer of electrons True False

A: Object can be charged by three methods. These are Conduction, friction and induction.

Q: find APF for the figure if r.- ?r+

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Q: ) One of the following is a contact force: Select one: a. Gravitational force. O b. None of these. O…

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Q: 1. Create logic gate truth tables for the following diagrams Circuit 1 Circuit 2 AB A B Circuit 3 AB…

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Q: 5. Prove that the given vector field is a conservative field where r is the position vector

A: For a conservative field, the curl of the vector field is zero.

Q: Draw a figure to describe the conveyor system?

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Q: Two thin conducting plates, each 25.0 cm on a side, are situated parallel to one another and 5.0 mm…

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Q: Vel=100V Find Apea of C3 it the plastes ofe parallel-plate capacitor ape 1 mm Eo-8.854 102 c/N.m The…

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Q: Two charged objects have a repulsive force of 0.8 N. If the distance separating the objects is…

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