In terms of π, what is the length of an arc which subtends an angle of 30° at the centre
of a circle of radius 3 cm?​

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

Oxygen and nutrients are moved through the body by the: a. circulatory system c. lymphatic system b. digestive system d. reproductive system

Astudent pushes on a 20.0 kg box with a force of 50 n at an angle of 30° below the horizontal. the box accelerates at a rate of 0.5 m/s2 across a horizontal floor. what is the value of the normal force on the box? 200 n 243 n 156 n 225 n