A body weights 63N on the surface of earth. What is the gravitational force on it due to the earth at a height of 3200 km from earth's surface?(Radius of the earth is 6400 km)

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?

With which of the following is the weak nuclear force associated? a.lightingb.nuclear decayc.ocean tidesd.stactic cling

Select the correct answer. what happens to the acceleration of an object if the net force on it increases? a. the acceleration increases. b. the acceleration decreases. c. the acceleration becomes zero. d. the acceleration remains the same