A uniform, horizontal beam of length 6.0 m and weight 140 N is attached at one end to a wall by a pin connection (so that it may rotate). A cable attached to the wall above the pin supports the opposite end. The cable makes an angle of 60° with the horizontal. What is the tension in the cable needed to maintain the beam in equilibrium?
a. 81 N
c. 70 N
b. 69 N
d. 140 N
A
You might also like to view...
Suppose you drop a 10 kilogram mass object and a 5 kilogram mass object on the Moon, both from the same height at the same time. What will happen?
a. Both objects will float freely since they are weightless on the Moon.
b. Both objects will hit the ground at the same time.
c. The 10 kilogram object will hit the ground before the 5 kilogram object.
d. The 5 kilogram object will hit the ground before the 10 kilogram object.
When a neutron decays to a proton, a(n) __________ particle is emitted
Fill in the blank(s) with correct word
A 20-? resistor and a 30-? resistor are wired in parallel and connected to a 9.0-V battery
a. How much current is drawn from the battery? b. How much power is dissipated in the circuit?
A single slit, which is 0.0500 mm wide, is illuminated by light of 550. nm wavelength. What is the angular separation between the first two minima on either side of the central maximum?
What will be an ideal response?