1. A force of 1100 N compresses a spring from its natural length of 15 cm to a length of 11 cm. How much more is done in compressing from 11 cm to 9 cm?
คำตอบ 27.50 J
2. Find the length of the curve
y = (3/8)(x^4/3-2x^2/3) from x = 1 to x = 64
คำตอบ 855/8
3. Find the volume of the described solid. The solid lies between planes perpendicular to the x-axis at x=0 and x=5. The cross sections perpendicular to the x-axis between these planes are squares whose bases run from the parabola y=-2sqrt(x) to the parabola y = 2sqrt(x)
คำตอบ 200
ทำไม 3 ข้อนี้ถึงตอบแบบนี้อะคะ มันทำยังไงอะคะ พอดีได้คำตอบไม่ตรงเฉลยค่ะ
คำตอบ 27.50 J
2. Find the length of the curve
y = (3/8)(x^4/3-2x^2/3) from x = 1 to x = 64
คำตอบ 855/8
3. Find the volume of the described solid. The solid lies between planes perpendicular to the x-axis at x=0 and x=5. The cross sections perpendicular to the x-axis between these planes are squares whose bases run from the parabola y=-2sqrt(x) to the parabola y = 2sqrt(x)
คำตอบ 200