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GenaCL600 [577]

2 years ago

9

What does the scientific method help test in environmental science?

1 answer:

horsena [70]2 years ago

5 0

Answer:

The scientific method is a method of research with defined steps that include experiments and careful observation. One of the most important aspects of this method is the testing of hypotheses by means of repeatable experiments. A hypothesis is a suggested explanation for an event, which can be tested.

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X-Rays at different wavelengths provide scientists studying objects in space with information about which of the following?

olganol [36]

Answer:

object composition

Explanation:

6 0

2 years ago

Read 2 more answers

An artillery shell is launched on a flat, horizontal field at an angle of α = 40.8° with respect to the horizontal and with an i

Lina20 [59]

Answer:

1317.4 m

Explanation:

We are given that

Angle= $\alpha=40.8^{\circ}$

Initial speed = $v_0=346m/s$

We have to find the horizontal distance covered by the shell after 5.03 s.

Horizontal component of initial speed= $v_{ox}=v_0cos\theta=346cos40.8=261.9m/s$

Vertical component of initial speed= $v_{oy}=346sin40.8=226.1m/s$

Time=t=5.03 s

Horizontal distance = $Horizontal\;velocity\times time$

Using the formula

Horizontal distance= $261.9\times 5.03$

Horizontal distance=1317.4 m

Hence, the horizontal distance covered by the shell=1317.4 m

8 0

2 years ago

Why is a flask is wider on the bottom than on the top? allows for a more precise measurement allows for better thermal equilibri

Genrish500 [490]

Answer:

allows for better thermal equilibrium

Explanation:

Due to the cone shape, most of the liquid will be closer to the bottom than the top. The large surface area of the bottom allows for faster heating.

8 0

2 years ago

A wheel free to rotate about its axis that is not frictionless is initially at rest. A constant external torque of +46 N·m is ap

Rom4ik [11]

Answer:

Explanation:

Let Torque due to friction be

F

Net torque

= 46 - F

Angular impulse = change in angular momentum

=( 46 - F ) x 17 = I X 580

When external torque is removed , only friction creates torque reducing its speed to zero in 120 s so

Angular impulse = change in angular momentum

F x 120 = I X 580

( 46 - F ) x 17 = F x 120

137 F = 46 x 17

F = 5.7 Nm

b )

Putting this value in first equation

5.7 x 120 = I x 580

I = 1.18 kg m²

8 0

2 years ago

If the body temperature of a person is recorded as 37°C, what is the person’s body temperature in K? Round your answer to the ne

melisa1 [442]

K= 37°C+273.15
K= 310.15
Round to the nearest whole number
310K

6 0

2 years ago