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crimeas [40]
2 years ago
6

How can u create a fair test?

Physics
2 answers:
Vladimir [108]2 years ago
8 0

Answer:

making sure that you change one factor at a time while keeping all other conditions the same

Explanation:

hoa [83]2 years ago
4 0

Answer:

You can create a fair test by making sure that you change one factor at a time while keeping all other conditions the same. Thats how you can create  a fair test.

Explanation:

Hope it helps! Have a great day!

Lilac~

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If 3 cups are sitting outside on a hot summer day, which cup will gain the most heat? Cup A starts a little above freezing, Cup
sammy [17]

Answer:

c- cold

Explanation:

8 0
3 years ago
How many photons per second are emitted by the antenna of a microwave oven if its power output is 1.00 kw at a frequency of 2515
Norma-Jean [14]
The power of the antenna is
P=1.00 kW=1000 W
and since the power is the emitted energy divided by the time, the energy emitted per second is
E=Pt = (1000 W)(1 s)=1000 J

The frequency of the emitted photons is
f=2515 MHz=2.515 \cdot 10^9 Hz
So the energy of a single photon is
E_1=hf=(6.6 \cdot 10^{-34} Js)(2.515 \cdot 10^9 Hz)=1.66 \cdot 10^{-24} J

Therefore, to find the number of emitted photons per second, we should divide the total energy emitted by the antenna in 1 second by the energy of a single photon:
N= \frac{E}{E_1}= \frac{1000 J}{1.66 \cdot 10^{-24} J}=  6.02 \cdot 10^{26}
8 0
3 years ago
Which of the following statements correctly describe the various applications listed above?
fgiga [73]

Answer:

The answer is "c,d,e, and g".

Explanation:

The correct choices can be defined as follows:

  • Higher-frequency microwaves aren't used in any of these systems.
  • Infrared waves aren't seen in each of these technologies.
  • Its shortest wavelength of all of the technologies listed is the above radiation generated by certain wireless networks.
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3 0
3 years ago
HELP!!!! PLEASE (and there will be more)
Alexus [3.1K]

Answer:

i wanna say tranverse if not surface

Explanation:

6 0
3 years ago
Read 2 more answers
What is the magnitude of velocity for a 2,000 kg car possessing 3,000 kg(*)m/s of momentum?
Trava [24]

The magnitude of velocity for this car is equal to 1.5 m/s.

<u>Given the following data:</u>

  • Momentum of car = 3,000 kgm/s.
  • Mass of car = 2,000 kg.

To calculate the magnitude of velocity for this car:

<h3>What is momentum?</h3>

In Science, momentum simply means a multiplication of the mass of an object and its velocity.

Mathematically, momentum is giving by the formula;

Momentum = mass \times velocity

Making velocity the subject of formula, we have:

Velocity=\frac{Momentum}{Mass}

Substituting the given parameters into the formula, we have;

Velocity=\frac{3000}{2000}

Velocity = 1.5 m/s.

Read more on momentum here: brainly.com/question/15517471

5 0
3 years ago
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