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
xeze [42]
3 years ago
7

Question 5 help please

Physics
1 answer:
IrinaVladis [17]3 years ago
5 0

Answer:

It is another machine that helps the main machine. Hope that helps!

You might be interested in
un resorte de 10cm de longitud recibe una magnitud de fuerza que lo estira hasta medir 15cm ¿cual es la magnitud de la tension u
Ber [7]

Answer: 0.5

Explanation:

The modulus of elasticity (called <em>"alargamiento unitario"</em> in spanish) \epsilon of a spring is given by the following formula:

\epsilon=\frac{\Delta L}{L}

Where:

L=10 cm  is the original length of the spring

\Delta L=L_{f}-L  is the elongation of the spring, being L_{f}=15 cm the length of the spring after a force is applied to it.

\epsilon=\frac{L_{f}-L}{L}=\frac{15 cm - 10 cm}{10 cm}

Then:

\epsilon=0.5

8 0
3 years ago
Six identical resistors are connected in series with a battery. The number of joules per second supplied by the battery is then
Nataly_w [17]

Answer:

The option (b) is correct.

Explanation:

The expression for the power in terms of work done is as follows;

P=\frac{W}{t}

Here, W is the work done, t is the time taken and P is the power.

According to the given problem, six identical resistors are connected in series with a battery. The number of joules per second supplied by the battery is then determined.

The expression for the equivalent resistance in the series combination is as follows;

R_{eq}=R_{1}+R_{2}......+R_{6}

Put R_{1},R_{2}......,R_{6}=R.

R_{eq}=R+R+R+R+R+R

R_{eq}=6R

It is given in the problem that a seventh resistor is added (in series).

R_{eq}=R_{1}+R_{2}......+R_{7}

Put R_{1},R_{2}......,R_{7}=R.

R_{eq}=R+R+R+R+R+R+R

R_{eq}=7R

The expression for the power in terms of voltage and resistance is as follows;

P=\frac{V^{2}}{R}

Here, R is the resistance.

From the above expression, it can be concluded that the power, the number of joules per second supplied by the battery is inversely proportional to the resistance. The equivalent resistance increases if the seventh resistance is connected with a battery.

If a seventh resistor is added (in series) the number of joules per second supplied by the battery decreases.

Therefore, the option (b) is correct.

5 0
3 years ago
Maxwell shoots a rubber band at his friend Jimmy. Which type of energy is converted into kinetic energy?
Leokris [45]

A stretched rubber band is storing <em>elastic potential energy. (A)</em>

3 0
3 years ago
What is the average speed of a kangaroo that hops 60 m in 5 s ?
jok3333 [9.3K]
The formula for average speed is
v_{avg}= \frac{total distance}{total time}
So we can just substitute our data.
v_{avg}= \frac{60}{5}=12 \frac{m}{s} - its the result
6 0
3 years ago
Read 2 more answers
You are given an unknown liquid and asked to determine its identity. You can measure only one physical property. You decide to h
11Alexandr11 [23.1K]
B boiling point because you used heat and it turned to vapor so it was boiled
4 0
3 years ago
Other questions:
  • What do Fauvism and Primitivism have in common? a. flattened figures b. opposition to current culture c. unrealistic color d. ar
    12·2 answers
  • Answer the following question below oki plzzz
    15·1 answer
  • A thin slice of silicon that contains many solid-state components is a(an)
    5·2 answers
  • Inductors in parallel. Two inductors L1 = 1.31 H and L2 = 2.24 H are connected in parallel and separated by a large distance so
    7·1 answer
  • Earth's curvature causes _____ heating of the surface by sun.<br> (one word)
    12·2 answers
  • Red shift data shows that galaxies are O expanding O shrinking O moving away O moving closer
    8·1 answer
  • You are standing in front of a flat large mirror. As you step 1.0 m farther from the mirror, the distance between you and your i
    10·1 answer
  • Karla Ayala pulls a sled on an icy road (dangerous!). Because of Karla's pull, the tension force is 151 N, and the rope makes a
    13·1 answer
  • for the same type of atom with 8 protons, 9 neutrons, and 10 electrons, what type of atom or ion is it​
    14·1 answer
  • Most houses in the countries that experience winter have air heaters installed.These heaters are usually installed near the floo
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!