Draw all the forces acting on the object below and label the forces: 4. A box is moving to the right with a positive acceleration on a horizontal surface with friction.
5. A box is being pulled to the right with an applied force at an angle of 30° above the horizontal at a constant speed.
6. A box is being pulled upward at constant speed.

Ogle–2013–blg–0723 is an exoplanet that is similar to earth in size and proximity to its star. this exoplanet has mass m=4.18×1024kg and radius r=5.66×106m. an astronaut whose weight on earth is w=735n lands on the planet. a. calculate m, the mass of the astronaut. b. calculate gp? , the acceleration due to gravity on the surface of ogle–2013–blg–0723. c. calculate wp? , the weight of the astronaut on the surface of ogle–2013–blg–0723. d. calculate v, the minimum velocity required to put an object into orbit above ogle–2013–blg–0723. e. calculate t, the time required to complete an orbit around ogle–2013–blg–0723.

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

If the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work is needed to stretch it 27 in. beyond its natural length?