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lapo4ka [179]
3 years ago
6

Explain what bias means when it comes to a scientific experiment.

Physics
1 answer:
Nookie1986 [14]3 years ago
6 0

Answer:

bias refers to effects that a conclusion that may be incorrect, as for example when a researcher patient knows what treatment is being given, to avoid bias a blinded study may be done

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If a child needs interventional service, he or she might have _____.
weqwewe [10]

Answer

Correct Answer is B,D, F and G

Explanation:

If a kid has any type of delays in his physical or mental growth then he need intervention service.

For example if a kid is not able to walk after 18 month, if a kid is not able to speak properly after 3 years, if a kid of 5 years age has lack of response to typical efforts to engage him in an interaction then these kids need intervention service.

8 0
3 years ago
(1) A hydraulic press is used to lift heavy objects. It consists of a U-tube, one end having a large cross-sectional area A1, th
lana [24]

Answer:

The load that can be lifted is equal to the weight W = F2A1/A2

Explanation:

According to Pascal principle which states that the pressure applied to a liquid confined in a container will be transmitted equally to all other parts of the container.

Since pressure = Force/Area

The force F2 applied at one end of the piston will generate a pressure of F2/A2. This pressure generated will be transmitted to the other end of the piston of area A1 to lift the load through a distance.

The piston where the load is will experience an upward force F1 which is equal to Pressure × Area.

The pressure experienced by the load is applied by force F2.

Force on the load = (Pressure exerted by Force F2) × Area at the larger end A1

Force on the load = F2/A2 × A1

Since the load experiences a weight W

The weight will be equal to the force on the load which is to be lifted i.e W =Force on the load.

W = F2A1/A2

The load that can be lifted is equal to the weight W = F2A1/A2

6 0
4 years ago
3. The smallest bird is the Cuban bee hummingbird, which has a mass of only
Firlakuza [10]

Answer:

2.6 m

Explanation:

The work done by the bird is given by

W=Fd

where

F is the force exerted

d is the distance covered

In this problem, we know:

W=8.8\cdot 10^{-4} J is the work

F=3.4\cdot 10^{-4} N is the force

Solving the equation for d, we find the distance covered by the bird:

d=\frac{W}{F}=\frac{8.8\cdot 10^{-4}}{3.4\cdot 10^{-4}}=2.6 m

8 0
3 years ago
You have learned about the importance and benefits of using an activity log to record your exercise each week. Now you are going
melamori03 [73]

Answer:

I not sure I need more info to answer this specific question I'm sorry

6 0
3 years ago
Ian pushed a piano across the room with the correct amount of force. Which of newton’s laws is this?
Black_prince [1.1K]

Answer:

1st and 2nd

Explanation:

6 0
3 years ago
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