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kondor19780726 [428]
3 years ago
7

Along with X-Rays, which high frequency EM waves can be used to destroy

Physics
1 answer:
Digiron [165]3 years ago
4 0
I believe it’s gamma
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Which of the following are characteristics of good experimental design? Check all that apply.
miv72 [106K]

Answer:

The correct answer will be-

1. Allows scientists to replicate experiments

2. Tests only one variable at a time

3. Plans how to record data so they can be published

Explanation:

A scientific experiment is performed to test the hypothesis which represents the limited explanation of the phenomenon.

The experiment is designed in a way that it test one variable at a time like the growth of plants. The experiment must be designed in a way that it can be replicated to reduce the error and repeated by other scientific persons to support the experiment. The design includes the plan for recording the results as it is one of the steps of the scientific method.

Thus, the selected options are the correct answer.

Controlled experiment is the type of experiment that involves changing only one variable at a time. Controlled experiment is subtly defined as an experiment which holds everything constant except one particular variable. This type of experiment allows only one variable to ever change at a given time

5 0
3 years ago
Read 2 more answers
What is the minimum speed needed to fire a champagne cork a distance of 11m?
Crank

To start with solving this problem, let us assume a launch angle of 45 degrees since that gives out the maximum range for given initial speed. Also assuming that it was launched at ground level since no initial height was given. Using g = 9.8 m/s^2, the initial velocity is calculated using the formula:

(v sinθ)^2 = (v0 sinθ)^2 – 2 g d

where v is final velocity = 0 at the peak, v0 is the initial velocity, d is distance = 11 m

Rearranging to find for v0: <span>
v0 = sqrt (d * g/ sin(2 θ)) </span>

<span>v0 = 10.383 m/s</span>

8 0
4 years ago
The magnitude of the frictional force along the plane is most nearly​
Svetach [21]

Answer:

F = N*μ or F =m*g*μ

Explanation:

The friction force is defined as the product of the normal force by the corresponding friction factor.

When a body is in equilibrium over a horizontal plane its normal force value shall be equal to:

N = m*g\\where:\\m=mass [kg]\\g=gravity [m/s^2]\\N= normal force [N]

if we simplify this formula more for a balanced body on a horizontal plane, we will have.

F=m*g*u

3 0
3 years ago
Which of the mathematical sign below would best complete the following statement?
vredina [299]

Answer:

B

Explanation:

option b stands for less down and cm is less than km

6 0
3 years ago
Which landscape will erode more quickly? Assume the same precipitation and average temperature in each landscape.
Artemon [7]

Answer:

  B.  Landscape B

Explanation:

Shale is fine sediment pressed together to form rock.

Sandstone is larger (sand-grain-sized) sediment cemented together to form rock.

Shale erodes faster, as evidenced by the second attachment. That attachment shows erosion of a rock face consisting of interbedded shale and sandstone. The shale has receded significantly, leaving the sandstone layers with space between them.

5 0
3 years ago
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