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
Nostrana [21]
3 years ago
9

Which simple machines make up a wheel barrow

Physics
1 answer:
7nadin3 [17]3 years ago
4 0

Answer:

a lever and a wheel and axle (i guess)

Explanation:

don't have any

You might be interested in
what is a hypothesis reffered to as after being verified by a large number or independent experiments
Iteru [2.4K]

Answer:

The hypothesis may or may not be true and needs to be tested. It might be the answer to the problem. Hence, it must be tested thoroughly. When these predictions are tested again and again in independent scientific experiments and gets verified, the hypothesis is converted into a scientific theory.

7 0
3 years ago
Why does the chord of an electric heater not glow while the heating element does​
8_murik_8 [283]

Answer:

The heating element of the heater is made up of alloy which has very high resistance so when current flows through the heating element, it becomes too hot and glows red. But the resistance of cord which is usually of copper or aluminum is very low so it does not glow.

4 0
3 years ago
In a series circuit, one of the resistors is replaced with a resistor having a lower resistance value. how does this affect the
Assoli18 [71]
Current will increase. 
8 0
3 years ago
Read 2 more answers
a female vocalist with a soprano voice can sing as high as 1000 hz. given that the speed of sound is 345 m/s what is the wavelen
Neporo4naja [7]

0.345 m.

<h3>Explanation</h3>

The wavelength is the distance that the wave travels in each cycle. The wave travels 345 meters in each second. Let the wavelength of this wave be \lambda. That's the distance the wave travels in one cycle.

The frequency of the sound wave is 1 000 Hz, meaning that there are 1 000 cycles in each second. The wave travels a distance of 1 000 wavelengths in one second. That would be a distance of 1,000\;\lambda.

From the speed of the wave, the wave travels 345 meters in one second. In other words,

1,000\;\lambda = 345.

\lambda = \dfrac{345}{1,000} = 0.345\;\text{m}.

To generalize:

\lambda = \dfrac{v}{f},

where

  • \lambda wavelength of the wave,
  • v the speed of the wave, and
  • f the frequency of the wave.
3 0
3 years ago
Who was the 43rd First Lady?
atroni [7]

Answer: After serving as Second Lady from 1981 to 1989, Barbara Pierce Bush served as First Lady of the United States when her husband George H. W. Bush won the Presidency. She is also the mother of the 43rd President, George W. Bush, and of Florida's 43rd Governor, Jeb Bush.

Explanation:

8 0
2 years ago
Other questions:
  • During an exothermic process, _____. during an exothermic process, _____. no heat is exchanged between the system and the surrou
    11·1 answer
  • A 90 kg painter is standing on a horizontal wooden scaffolding of length 10 m, which is supported on each end by a rope. The pai
    10·1 answer
  • A car is rounding a 100-m-radius curve at 25 m/s.What is the minimum possible coefficient of static friction between the tires a
    6·1 answer
  • Physical Science is the study of
    7·2 answers
  • A current is always developed in the secondary of a transformer. true or false
    15·1 answer
  • What is the efficiency of a machine?​
    14·1 answer
  • How fast can a human go before they reach terminal velocity?​
    13·1 answer
  • 9. What is the gravitational potential energy of a 61.2 kg person standing on the roof of a 10-storey building? (Each storey is
    15·1 answer
  • How would the period of a planet depend on its orbital distance from a star? in this comparison,
    10·1 answer
  • In order for work to be done a___<br> must be exerted on an object causing it to___
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!