1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Oksi-84 [34.3K]
3 years ago
5

A uniform bar of length l and weight w is attached to a wall with a hinge that exerts a horizontal force hx and a vertical force

hy on the bar. the bar (which makes an angle θ with respect to wall) is held by a cord that makes a 90◦ angle with respect to bar. what is the magnitude of the tension t in the cord?
Mathematics
1 answer:
maria [59]3 years ago
4 0
The answer is Hx = ½ Wsin θ cos θ
The explanation for this is:
Analyzing the torques on the bar, with the hinge at the axis of rotation, the formula would be: ∑T = LT – (L/2 sin θ) W = 0
So, T = 1/2 W sin θ. Analyzing the force on the bar, we have: ∑fx = Hx – T cos θ = 0Then put T into the equation, we get:∑T = LT – (L/2 sin θ) W = 0
You might be interested in
PLEASE HELP
garri49 [273]

Answer:

the correct answer is $14.55%

6 0
3 years ago
Use the formula S = 40,000 (1.06)t to calculate your salary after 4 years. Round your answer to the nearest dollar.
Pavlova-9 [17]

Answer:

d. $50,499

Step-by-step explanation:

Given:

S = 40,000 (1.06)^t

Where,

t=4 years

S=40,000(1.06)^4

=40,000(1.26247696)

=50,499.0784

To the nearest dollar

S=$50,499

The answer is d. $50,499

5 0
3 years ago
Which number is not the square of a whole number A: 100
abruzzese [7]
10^10 = 100
20^2 = 400
29^29 = 841
28^28 = 784
5 0
3 years ago
What is the solution of the system of equations? y= -3x+8<br> y= -5x-2
Crazy boy [7]
Y = -3x+8
y = -5x-2
------------
y = 5(-3x+8)
y = 3(-5x-2)
---------------
y = -15x+40
y = -15x-6
--------------
y = -15x+40       
       -      - 
y = -15x-6
--------------
y = 46
<span>
y = -3x+8
</span>46 = -3x+8
-8           -8
---------------
38 = -3x
----    ----
-3      -3
12.666...=x
(<span>12.666.,46) </span>← Answer
5 0
3 years ago
Read 2 more answers
If a polynomial function f(x) has roots 3+
irinina [24]

Answer:

Step-by-step explanation:

3+√5 is a root.

so 3-√5 is also a root

or (x-(3-√5)) is also a factor of f(x)

7 0
3 years ago
Other questions:
  • Find the slope of the line whose equation is 5y = x - 3.<br><br> -3<br> -3/5<br> 1/5<br> 5
    7·1 answer
  • Heidi solved the equation 3(x + 4) + 2 = 2 + 5(x – 4). Her steps are below: 3x + 12 + 2 = 2 + 5x – 20 3x + 14 = 5x – 18 14 = 2x
    6·2 answers
  • Gracie is shipping a cube shaped box. It measures 14 in x 14 in x 14 in. What is the surface area of the box. Please show work)
    9·1 answer
  • What is the value of x?
    15·2 answers
  • Can someone please help ASAP?
    10·1 answer
  • QUESTION 4, Saturday, October 10th, 2020
    12·2 answers
  • How can this expression be written another way?
    7·1 answer
  • How to get a tutor on here y’all ? It’s won’t pop up for me
    8·2 answers
  • Choose all the numbers that are common multiples of 4 and 9.​
    5·1 answer
  • Colin bought a postcard for 45 cents . he gave the cashier $1 how much change did he receive
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!