This is not a project and/or assignment for marks, as theses are textbook questions, and will not be copying the tutors work/answers. Please answer all the questions in the space provided and in full details. Show ALL your steps and your calculations. Answer in complete sentences, with therefore statements, when needed. Take as much time as needed to answer all of the questions correct please and thank you. Will write a very neat and wonderful review afterwards.

Gravitational and Electric Fields 1. Calculate the gravitational attraction between a proton of mass 1.67 x 10-2 kg and an electron of mass 9.11 x 10 31kg if they are 6.00 x 10-15m apart. 2. Explain the 3 step process of charging by induction using a negative rod, an electroscope (a ball), and a wire. Be sure to mention the wire and movement of charges in each step and the final charge on the electroscope. Ground Ground Ground 3. List TWO differences between charging an object by contact and charging an object by friction. 4. Two equal charges of magnitude 1.8 x 10- C experience an electrostatic force of 4.5 x 10-* N. How far apart are the centers of the two charges? 5. Calculate the value of the gravitational field strength g, 2000 km above the surface of Earth. (E = 6.38 x 105m, ME = 5.98 x 1024 kg) 6. How much work is done against gravity to move an 800 kg weather monitor 300 km into the air? (FE = 6.38 X 105m, ME = 5.98 x 1024 kg)7. Charged spheres X and Z are in a set position and have charges qx = -9.4 x 10 10C and qz = -1.8 x 10- C respectively. Calculate the net electric field on sphere Y. X Y Z O 5.00 cm 8.50 em 8. The International Space Station is in orbit about 408 km above the surface of Earth. Calculate how many minutes it would take for the ISS to complete one orbit. (E = 6.38 x 105m, ME = 5.98 x 1024 kg) 9. Two small spheres, with charges q, = 2.6 x 10 *C and q2 = 7.8 x 10"*C, are situated 4.0 m apart. They have the same sign. Where should a third sphere (93 = 3.0 x 10 *C) be placed between the two so that q3 experiences no net electrical force? 4 m X 10) A test charge, q1 = -5 X 10 BC, is placed in an electric field and experiences a force of 2.0 x 10-10N [S]. a) What is the electric field intensity at the location of the positive test charge? b) Predict the force that would result on the test charge if q, was replaced by a charge of 92 = 6 x 10-7C