Consider a satellite in a circular orbit above earth's surface. in chapter 4 of the textbook we will learn that the force of gravity changes only the direction of motion of a satellite in circular motion (and keeps it in a circle), but does not change its speed. work done on the satellite by the gravitational force is zero. what is your explanation?

Jane is a new therapist who works with couples and families. her decision was motivated by her sister melinda’s experience of spousal abuse. when jane meets with her supervisor to review cases, he points out that jane takes sides with her female clients when they cry or describe intense conflicts with their husbands. she believes her supervisor is blind to the signs of abuse. what critical thinking pitfall do jane’s reactions show?