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
Elanso [62]
2 years ago
11

Josh tests an unknown liquid substance using litmus paper. When he compared the used litmus paper to a pH scale, the color match

es with a 3.5 of the scale. What kind of substance did Josh test?
Physics
1 answer:
Hunter-Best [27]2 years ago
8 0

Answer:

acid

Explanation:

because ph below 7 is acid

You might be interested in
What is the main cause of temperature changes in the atmosphere
Whitepunk [10]

Answer:

The main driver of climate change is the greenhouse effect. Some gases in the Earth's atmosphere

4 0
2 years ago
You buy a 75 watt light bulb. the label means that
alukav5142 [94]
The label means that the bulb will consume 75 joules of electrical energy in 1 sec
4 0
3 years ago
A train moves from rest to a speed of 25 m/s in 30.0 seconds. What is the acceleration?
fredd [130]

Answer:

a = 0.83\ m/s^2

Explanation:

<u>Uniform Acceleration </u>

When an object changes its velocity at the same rate, the acceleration is constant.

The relation between the initial and final speeds is:

v_f=v_o+a.t

Where:

vf  = Final speed

vo = Initial speed

a   = Constant acceleration

t   = Elapsed time

It's known a train moves from rest (vo=0) to a speed of vf=25 m/s in t=30 seconds. It's required to calculate the acceleration.

Solving for a:

\displaystyle a=\frac{v_f-v_o}{t}

Substituting:

\displaystyle a=\frac{25-0}{30}

\boxed{a = 0.83\ m/s^2}

4 0
2 years ago
What is 18 m/s north an example of?
Mkey [24]

Answer:

It is an example of velocity

Explanation:

It is an example of velocity Don't ask how I know because I do know it I just don't know how to explain it.

8 0
3 years ago
In odd nuclei, what determines the final spin of the nucleus?
Katen [24]

Answer:

In odd nuclei, the left out proton or neutron will contribute to the spin of the nucleus.

Explanation:

The meaning of odd nuclei is atomic mass is odd.

A=odd number.

A=Z+n

Here, Z is proton either it will odd or n will odd which is neutron.

Now according to the shell model the left out proton or neutron will contribute to the spin and parity.

For example,

Take the case of isotope of nitrogen-15.

Here Z is 7, and n is 8 will not contribute in spin.

Now, for Z=7.

1S^{2} _{\frac{1}{2} }, 1P^{4} _{\frac{3}{2} }, 1P^{1} _{\frac{1}{2} }

Here,

j=\frac{1}{2}

and, L=1.

Fort parity,

(-1)^{L}

Put the value of L.

Parity will be -1.

Now, spin will be

S=(\frac{1}{2} )^{-1}.

7 0
3 years ago
Other questions:
  • If I put one hand in hot tap water and the other in cold tap water then both in the same warm tap water what will happen
    14·1 answer
  • What is the power when a crane lifts a piece of pipe from the ground to a certain height, doing 15000 J of work in 25s?
    13·1 answer
  • A ball is thrown vertically upwards. It returns 6s later. Calculate : (1) the greatest height reached by the ball, and (2) the i
    6·1 answer
  • A 16.0 Ω, 13.0 Ω, and 7.00 Ω resistor are connected in parallel to an emf source. A current of 6.00 A is in the 13.0 Ω resistor.
    15·2 answers
  • Consider the following hypotheses: 12:V ) &gt;(x)) Use rules of inference to prove that the following conclusion follows from th
    9·1 answer
  • A 13 kg hanging sculpture is suspended by a 95-cm-long, 5.0 g steel wire. When the wind blows hard, the wire hums at its fundame
    7·2 answers
  • is it possible for the thermal energy in a bowl of cold water equal to the thermal energy in a bowl of hot water
    6·1 answer
  • Is altitude abiotic or biotic or neither SCIENCE WORK NEEDED BY 11:59 HELP HELP HLEP
    10·1 answer
  • Solve this chemical equation: CH3CH2OH+__O2=CO2+__H2O
    14·1 answer
  • A frequency spectrum shows a tone that is composed of a frequency of 440 hz, 880 hz, and 1320 hz. the 880 hz and 1320 hz frequen
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!