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
Vesna [10]
3 years ago
9

A chandelier has sockets for 12 light bulbs. Suppose there are 75 of these

Physics
1 answer:
barxatty [35]3 years ago
3 0

-- First, we need to know how many total sockets there are in the auditorium.

(75 chandeliers) x (12 sockets/chandelier) = 900 sockets

-- Now, in order to fill 900 sockets, we'll need 900 bulbs.

(900 bulbs) / (4 bulbs/box) = 225 boxes

If all the bulbs we buy are good ones, and we don't drop any while we're installing them, then we can just exactly do the job with <em>225 boxes</em>.

You might be interested in
34.9x46x809 Please helpp
Fed [463]
<h2>34.9×46×809</h2><h3>=1605.4×809 </h3><h3>=1298768.6</h3>

please mark this answer as brainlist

6 0
3 years ago
ingrid kicks a football with an initial velocity of 12 m/s at an angle 45 relative to the ground. what is the horizontal compone
nydimaria [60]

Let's assume that the coordinate system is defined as positive in the first quadrant.

The system has its origin in the place where Ingrid kicks the football ball.

We have then that the horizontal component is given by:

x = 12cos (45)

Rewriting we have:

x = 12 ( \frac{\sqrt{2}}{2})\\x = 8.485281374

Rounding the obtained result we have:

x = 8.5 \frac{m}{s}

Answer:

The horizontal component of the initial velocity to the nearest tenth is:

x = 8.5 \frac{m}{s}

4 0
3 years ago
Read 2 more answers
The resultant of two forces is 250 N and the same are inclined at 30° and 45° with resultant one on either side calculate the ma
Varvara68 [4.7K]

Answer:

The two forces are;

1) Force 1 with magnitude of approximately 183.013 N, acting 30° to the left of the resultant force

2) Force 2 with magnitude of approximately 129.41 N acting at an inclination of 45° to the right of the resultant force

Explanation:

The given parameters are;

The (magnitude) of the resultant of two forces = 250 N

The angle of inclination of the two forces to the resultant = 30° and 45°

Let, F₁ and F₂ represent the two forces, we have;

F₁ is inclined 30° to the left of the resultant force and F₂ is inclined 45° to the right of the resultant force

The components of F₁ are \underset{F_1}{\rightarrow} = -F₁ × sin(30°)·i + F₁ × cos(30°)·j

The components of F₂ are \underset{F_2}{\rightarrow} = F₂ × sin(45°)·i + F₂ × cos(45°)·j

The sum of the forces = F₂ × sin(45°)·i + F₂ × cos(45°)·j + (-F₁ × sin(30°)·i + F₁ × cos(30°)·j) = 250·j

The resultant force, R = 250·j, which is in the y-direction, therefore, the component of the two forces in the x-direction cancel out

We have;

F₂ × sin(45°)·i = F₁ × sin(30°)·i

F₂ ·√2/2 = F₁/2

∴ F₁ = F₂ ·√2

∴ F₂ × cos(45°)·j  + F₁ × cos(30°)·j = 250·j

Which gives;

F₂ × cos(45°)·j  + F₂ ·√2 × cos(30°)·j = 250·j

F₂ × ((cos(45°) + √2 × cos(30°))·j = 250·j

F₂ × ((√2)/2 × (1 + √3))·j = 250·j

F₂ × ((√2)/2 × (1 + √3))·j = 250·j

F₂ = 250·j/(((√2)/2 × (1 + √3))·j) ≈ 129.41 N

F₂ ≈ 129.41 N

F₁  = √2 × F₂ = √2 × 129.41 N ≈ 183.013 N

F₁  ≈ 183.013 N

The two forces are;

A force with magnitude of approximately 183.013 N is inclined 30° to the left of the resultant force and a force with magnitude of approximately 129.41 N is inclined 45° to the right of the resultant force.

5 0
3 years ago
Light of wavelength 618.0 nm 618.0 nm is incident on a narrow slit. The diffraction pattern is viewed on a screen 84.5 cm 84.5 c
scZoUnD [109]

Answer:

83.55 μm

Explanation:

In a single slit experiment, the distance (on the screen), y, between the central maximum and the minimum of order, m, is given as:

y = \frac{md}{a} * λ

where λ = wavelength

a = width of slit

d = distance between slit and screen

To get the width of the slit, we make a the subject of formula:

a = (mλd)/y

a = \frac{2 * 618 * 10^{-9} * 84.5*10^{-2}}{1.25 * 10^{-2}}

(All units of length are in meters)

a = 8.355 * 10^{-5} m\\\\\\a = 83.55 * 10^{-6} m

a = 83.55 μm

8 0
3 years ago
What is the shortest possible time in which a bacterium to travel distance of 8.4cm across a Petri dish at a constant velocity o
Dimas [21]

Answer:

\boxed{\sf Shortest \ possible \ time = 7 \ seconds}

Given:

Distance travelled (s) = 8.4 cm

velocity (v) = 1.2 cm/s

To Find:

Shortest possible time (t) in which a bacterium travel a distance 8.4 cm across a Petri Dish

Explanation:

\boxed{ \bold{\sf Time \ (t) = \frac{Distance \ travelled \ (s)}{Velocity \ (v)}}}

Substituting values of Distance travelled (s) & Velocity (v) in the equation:

\sf \implies t =  \frac{8.4}{1.2}

\sf \implies t =  \frac{7 \times  \cancel{1.2}}{ \cancel{1.2}}

\sf \implies t = 7 \: s

3 0
3 years ago
Other questions:
  • What is the current in the 20.0 resistor?
    13·2 answers
  • if you wanted to know how big a tiger was what measurement would you use a. candela,mole b.meter,second c. kilogram,ampere d. me
    12·1 answer
  • The density of aluminum is 2.70 g/ml. A piece of aluminum foil has a mass of 44 g. What is the volume of this piece of aluminum
    6·1 answer
  • A submarine travels 25 km/h north for 3.2 hours. What is its displacement?
    9·1 answer
  • What must be the distance between point charge 91 = 20 MC and point charge 02 -45,0 AC for the electrostatic force between them
    12·1 answer
  • How far away is the sun?
    5·1 answer
  • Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. The sti
    7·1 answer
  • camera was able to deliver 1.3 frames per second for this photo, and that the car has a length of approximately 5.3 meters. Usin
    5·1 answer
  • An airplane flies 1000 miles in 2 hours. What is its average speed in miles per hour?
    11·1 answer
  • Identity the sentence that uses quotas and interviews.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!