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
m_a_m_a [10]
3 years ago
5

In an experiment what are all the parts of an experiment that remain unchanged are called​

Physics
1 answer:
stira [4]3 years ago
3 0
The answer for this question is Control Variable because it doesn’t change throughout the experiment.
You might be interested in
A wave has a frequency of 875 hz and a wavelength of 352 m. At what speed is this wave traveling 
Sonbull [250]

Answer:

308,000 or 30.8×10^3

Explanation:

v=f×lamda

v is ?, f is 875Hz, lamda is 352m

v=875×352

v=308,000

v=30.8×10^3 m/s

5 0
3 years ago
A Rankine cycle with one closed feedwater heater with its drain cascaded backward has a water mass flow rate through the steam g
mamaluj [8]

Answer:Draw a T-s diagram for the ideal Rankine Cycle

Explanation:

6 0
3 years ago
A boy shoves his stuffed toy zebra down a frictionless chute. It starts at a height of 1.69 m above the bottom of the chute with
Veseljchak [2.6K]

Answer:

x = 6.94 m

Explanation:

For this exercise we can find the speed at the bottom of the ramp using energy conservation

Starting point. Higher

            Em₀ = K + U = ½ m v₀² + m g h

Final point. Lower

            Em_{f} = K = ½ m v²

            Em₀ = Em_{f}

            ½ m v₀² + m g h = ½ m v²

            v² = v₀² + 2 g h

             

Let's calculate

             v = √(1.23² + 2 9.8 1.69)

             v = 5.89 m / s

In the horizontal part we can use the relationship between work and the variation of kinetic energy

            W = ΔK

            -fr x = 0- ½ m v²  

               

Newton's second law

              N- W = 0

     

The equation for the friction is

               fr = μ N

               fr = μ m g

We replace

             μ m g x = ½ m v²

             x = v² / 2μ g

Let's calculate

            x = 5.89² / (2 0.255 9.8)

            x = 6.94 m

6 0
3 years ago
Read 2 more answers
You exert a force of 75 newtons on a rock. You push and you push, but you can’t budge it. You are exhausted! How much work did y
dalvyx [7]

Answer:   Work W = 0

Explanation: Work W = F·s. Because rock does not move, s = 0 and

work done is zero.

4 0
3 years ago
In this example we see how thermal expansion can actually throw off the accuracy of a length-measuring device—namely, a tape mea
Ulleksa [173]

Answer:

The new length is 50.00885m

Explanation:

linear thermal expansion coefficient Fe 11.8e-6 /K

The new length can be determined using the following equation:

∆L/L = α∆T, where α is linear thermal expansion coefficient

∆L = Lα∆T = 50(11.8e-6)(35-20) = 0.00885 m

New length = ( 50.000 + 0.00885)m =

New length = 50.00885 m

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the smallest part of a compound called? element atom mixture molecule
    8·2 answers
  • Calculate the force constant (in N/m) of its plunger's spring if you must compress it 0.160 m to drive the 0.0540 kg plunger to
    11·1 answer
  • Please help
    10·2 answers
  • Jet fighter planes are launched from aircraft carriers with the aid of their own engines and a catapult. If in the process of be
    9·1 answer
  • If a neutral object such as paper comes close to a positively charged plastic rod, what type of charge accumulates on the side o
    14·2 answers
  • A 1280 kg car is moving 4.92 m/s. a 509 N force then pushes it forward for 28.7 m. what is its final KE?(unit=J)PLEASE HELP
    5·2 answers
  • Which of the following systems reflects a decrease in entropy? A. burning match B. freezing water C. evaporating alcohol D. brea
    9·2 answers
  • Which map would be most likely to cause the National Weather Service to issue a weather warning for Florida?
    8·2 answers
  • A 10,000kg space ship is orbiting the moon with a radius of 25km from the ship to the center of the moon. It's tangential speed
    6·1 answer
  • Why is tungsten used as a filament in a bulb?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!