Dana is attaching a shelf to a wall and needs the shelf to be parallel to the floor. Hoe many degrees should the shelf be relative to the floor?

You set up a Halloween prank by attaching a small board to a hinge above your front door. The far end of the board is held up by a cable that can be released by remote control. You place a spooky spider on the board that is dropped on unsuspecting trick-or-treaters when you release the cable. The drawing below shows the set-up. cable 40° Hinge 60 ст You use a board that is 60 cm long and the cable makes an angle of 40 degrees with the board when the board is held horizontally. You place the spider a distance of r = 37 cm from the hinge. The board has a mass of 2.2 kg and the spider has a mass of 1.6 kg. The hinge applies both a horizontal force and a vertical force. You will be asked to determine the direction of both of these forces (left, right, up, down). What is the magnitude of the tension in the cable in Newtons? T = What is the magnitude and direction of the horizontal force from the hinge? Enter a positive number for the magnitude. Fh = Direction ---Select--- What is the…

A woman stands on the end of a 12 m long uniform beam that has a pivot 3 m from the end the woman is standing on. If the beam is balanced and the woman has a mass of 80 kg, then what must the mass of the beam be? A) 20 kg, b) 40 kg, c) 80 kg, d) 160 kg or e) it would be impossible for the beam to be balanced.

A floodlight with a mass of 28 kg is used to illuminate the parking lot in front of a library. The floodlight is supported at the end of a horizontal beam that is hinged to a vertical pole, as shown. A cable that makes an angle of 30° with the beam is attached to the pole to help support ue floodlight. Assume the mass of the beam is negligible when compared with the mass of the floodlight. 30° 28 kg Find the force FT provided by the cable. The acceleration of gravity is 9.81 m/s2. Answer in units of N. Answer in units of N