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Andrej [43]
2 years ago
8

A(n) __________ refers to a substance or treatment that is often used in an experiment but does not have an actual medicinal or

experimental benefit. A. Extraneous variable B. Placebo C. Confounding variable D. Independent control Please select the best answer from the choices provided A B C D.
Physics
2 answers:
dimaraw [331]2 years ago
6 0

Answer:

A __placebo (B)___ refers to a substance or treatment that is often used in an experiment but does not have an actual medicinal or experimental benefit.

Explanation:

Got it right on EDGE2022

kipiarov [429]2 years ago
3 0

Answer:

A placebo refers to a substance or treatment that is often used in an experiment but does not have an actual medicinal or experimental benefit.

Explanation:

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Unit of gravitational force ​
azamat

Answer:

Newton

Explanation:

9.80665 × kgf = 1 Newton N

1 kilogram force (kgf) was the force of gravity, which is pushing a mass of 1 kg at one place in the world on the ground; calculated according to Newton's law force = mass × acceleration.

3 0
3 years ago
A car is moving South at a constant speed of 60 miles per hour. The force of the
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Answer: 750 N

Explanation:

The net force is 1200 - 450 = 750 N

As we are told the speed is constant, then this force must be increasing the car's potential energy by climbing a hill.

F = mgsinθ

If we knew the car mass, we could find the hill slope angle.

If we knew the hill slope angle, we could find the car mass.

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3 years ago
What was anton van leeuwenhoek famous for
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Answer:

He is known as the first microbiologist and also “the Father of Microbiology” because he was the first to observe bacteria underneath a microscope. He made many other significant discoveries in the field of biology and also made important changes to the microscope.

Explanation:

hope this helps. and if it did pls mark brainliest :)

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3 years ago
What is the mechanical advantage of a lever that has an input arm of 6 meters and an output arm of 2 meters
Setler79 [48]

Answer:A

Explanation:I TOOK THE Test

5 0
3 years ago
Which statement best describes the law of conservation of energy?
Phantasy [73]
<span>The correct option is C. Energy cannot be created or destroyed. This statement is known as law of conservation of energy, and it implies that whenever a certain form of energy does change, the loss of this form of energy must have converted into an another type of energy. A typical example is an object falling to the ground: initially, the object has gravitational potential energy. As the object falls down, it loses potential energy (since its altitude from the grounf decreases), but it acquires kinetic energy (because its velocity increases). In this example, potential energy has converted into kinetic energy, but the total energy of the object has remained constant.</span>
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3 years ago
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