One end of a wire is attached to a ceiling, and a solid brass ball is tied to the lower end. The tension in the wire is 225 N. What is the radius of the brass ball? Number i Units 4

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° 13 Hinge 60 cm 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 = 40 cm from the hinge. The board has a mass of 3.1 kg and the spider has a mass of 1.3 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 = N What is the magnitude and direction of the horizontal force from the hinge? Enter a positive number for the magnitude. Fh= N Direction ---Select--- What is the…

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L GAS A 48.0 kg sign hangs at the end of a bar where L = 3.10 meters in length. A cable attaches to the end of the horizontal bar and to a wall 2.60 meters above where the bar is attached to the wall. The bar has a mass of 12-kg. What is the tension in the cable? Give your answer in Newtons to 3 significant figures (no decimal places in this case).

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 conical pendulum is set up with a bob whose mass is 6.0 kg. When it is set in motion, at a speed of 0.60 m/s, the string makes a 12.0 degree angle with the vertical. a) Find the radius of the horizontal circle the conical pendulum traces out. b) Find the length of the string.c) Find the magnitude of the tension in the string.

1. ch A uniform 40.0-kg scaffold of length 6 m is supported by two light cables, as shown below. An 80 kg painter stands 1 m from the left end of the scaffold, and his painting equipment is 1.5 m from the right end. The tension in the left cable is twice that in the right cable. Find 1. The tension in the left cable = 2. The tension in the right cable = 3. The mass of the equipment = N 99+ N kg Think & Prepare 1. If the plank is in equilbrium, torque about any point will be zero. Pick a point about which to calculate torques. 2. Draw all forces and torques. 3. Write down the First Condition for Equilibrium symbolically. 4. Write down the Second Condition for Equilibrium symbolically. 5. How many unknowns are there? How many equations are there? 6. How can you solve the equations find the unkowns?

12. During a wrestling match, a 158 kg wrestler briefly stands on one hand during a maneuver designed to perplex his already moribund adversary. By how much (in m) does the upper arm bone shorten in length? The bone can be represented by a uniform rod 36.0 cm in length and 1.9 cm in radius. m Additional Materials Reading 13. When using a pencil eraser, you exert a vertical force of 9.00 N at a distance of 2.00 cm from the hardwood-eraser joint. The pencil is 6.00 mm in diameter and is held at an angle of 36.0° to the horizontal. (Enter your answers in m.) (a) By how much does the wood flex perpendicular to its length? m (b) How much is it compressed lengthwise? m

What is the force of static friction between the top and bottom blocks assuming the surface is frictionless and the surface between top and bottom blocks has no slipping?

Just need part B