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
Olegator [25]
3 years ago
5

Nicholas spends 20 minutes ironing shirts with his 1,800-watt iron. How many joules of energy were used

Physics
1 answer:
ivanzaharov [21]3 years ago
7 0
Multiply the power (1,800 watts) by time (1,200 seconds) to get 2,160,000 joules (or 2.16 MJ)
You might be interested in
Can you help with this please
Vlad1618 [11]
1 every light in your household is parallel this is useful bc as one goes out not all do as they would in a series circuit 2 plastic and glass they are common bc it does not let electricity travel from one place to another outside of it
8 0
2 years ago
Read 2 more answers
A joule is a unit of work is equal to ____?
Artemon [7]
Work is defined as a Newton * meter.

8 0
2 years ago
Read 2 more answers
A balloon will stick to a wooden wall if the balloon is charged
grigory [225]
<h2>Answer: either way</h2>

The balloon contains neutral charge atoms, that is, it has the same number of electrons (negative charge), protons (positive charge) and neutrons (no charge).

Then, when two objects come into contact, the electrons of one of them can become part of the other.

Thus, by bringing the balloon closer to the wall, the wall, which is also made up of atoms, will reorder its charges in such a way that its electrons or protons become part of the balloon, charging it.

7 0
2 years ago
The heart has structures that are called_____. This allows the blood to move in one direction.
Anarel [89]

Answer:

valves

The heart has four valves - one for each chamber of the heart. The valves keep blood moving through the heart in the right direction.

5 0
2 years ago
Read 2 more answers
The opening to a cave is a tall, 30.0-cm-wide crack. A bat is preparing to leave the cave emits a 30.0 kHz ultrasonic chirp. How
Vlada [557]

Answer:

The value is  w =  7.54 \  m        

Explanation:

From the question we are told that

     The length of the crack is  a =  0.3 \  m

     The  frequency is  f =  30.0 \ kHz =  30 *10^{3} \  Hz

      The distance outside the cave that is being consider is  D =  100 \  m

      The speed of sound is v_s =  340 \  m/s

Generally the wavelength of the wave is mathematically represented as

        \lambda =  \frac{v}f}

=>     \lambda =  \frac{340 }{30*10^{3}}

=>     \lambda = 0.0113 \ m/s

Generally for a  single slit the path difference between the interference patterns of the sound wave and the center  is mathematically represented as  

          y =  \frac{ n *  \lambda * D}{a}

=>     y =  \frac{ 1  *  0.0113 * 100}{0.3}

=>     y = 3.77 \  m

Generally the width of the sound beam is mathematically represented as

         w =  2 *  y

=>      w =  2 *  3.77

=>      w =  7.54 \  m        

4 0
3 years ago
Other questions:
  • The bottom of the inner curve of a hook is called
    6·1 answer
  • What effect does increasing mass have on the amount of friction generated
    13·1 answer
  • A girl is sledding down a slope that is inclined at 30º with respect to the horizontal. The wind is aiding the motion by providi
    13·1 answer
  • Two men decide to use their cars to pull a truck stuck in mud. They attach ropes and one pulls with a force of 598 N at an angle
    15·1 answer
  • A reckless coyote engineer straps on a pair of ice skates and attaches a rocket capable of producing 5.0 × 10 3 N of thrust to h
    5·1 answer
  • How do different factors affect solubility? Check all of the boxes that apply.
    8·2 answers
  • What is required for an electromagnet to produce a magnetic field that is
    11·2 answers
  • I need HELP ASAP please!!!
    14·1 answer
  • 2. Summarize how the force of gravity
    13·1 answer
  • I need help with a physics worksheet about Newtons Laws.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!