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4 years ago

Write a paragraph explaining how the scientific method exemplified the new emphasis on reason

Physics

1 answer:

katrin [286]4 years ago

7 0

Answer:

Scientists apply a similar reasonable process every time.

Explanation:

Scientific methods are mathematical and experimental procedures that are used to solve scientific problems. In the scientific method, events are observed and a background research is conducted. Series of hypotheses are created and later tested. Then, the results are analysed and a conclusion is drawn. In most cases, the results or findings are shared with the public and other researchers. Therefore, scientist generally apply the same reasonable process every time to solve the different scientific problems encountered .

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A 0.086 kg bullet is fired at 266 m/s and collides with a 6.3 kg wooden block that is initially stationary. The bullet embeds in

olga2289 [7]

Answer:

The value of speed of wooden block at the instant after the collision $V_f =$ 262.41 $\frac{m}{s}$

Explanation:

Given data

Mass of block = 6.3 kg

Mass of bullet = 0.086 kg

Velocity of bullet $V_0$ = 266 $\frac{m}{s}$

Final velocity of whole system is

$V_f = M_{b}\frac{ V_0}{M_b + (M_{block})}$

Put all the values in above formula we get

$V_f = \frac{(6.3)(266)}{(6.3 + 0.086)}$

$V_f =$ 262.41 $\frac{m}{s}$

This is the value of speed of wooden block at the instant after the collision.

7 0

3 years ago

A mechanic jacks up the front of a car to an angle of 8.0° with the horizontal in order to change the front tires. the car is 3.

Zina [86]

First draw a free-body diagram. Torque T = Force F x Distance d where force is the component of gravitational force g and d is the lever arm distance to the pivot point. Since the pivot point is at the back tire we subtract that from the length of the car resulting in d = 1.12 - 0.40 = 0.72 meters = d. We are interested in the perpendicular component of the force exerted on the car jack so use sin 8 degrees then T=1130 kg x 9.81 m/s^2 x sin(8 degrees) x0.72 m = 1,110.80 Newton-meters

5 0

4 years ago

Which would be most reliable source for information about the toxity of an industrial chemical

amid [387]

For example, a trade secret may be a confidential device, pattern, information, or chemical make-up.Chemical industry trade secrets are generally formulas, process data, or a "specific chemical identity." The latter is the type of trade secret information referred to in the Hazard Communication Standard. The term includes

6 0

3 years ago

Read 2 more answers

A soccer ball is kicked with an initial velocity 13 m/s at an angle of 35 degrees from the horizontal. What is the maximum heigh

Nana76 [90]

Answer:

The maximum height reached by the ball is 2.84 m

Explanation:

Given;

initial velocity of the soccer, u = 13 m/s

angle of projection, θ = 35°

The maximum height reached by the ball = ?

Apply the following kinematic equation, to determine the maximum height reached by the ball.

Maximum height (H) is given as;

$H = \frac{U^2sin^2\theta}{2g} \\\\H = \frac{(13)^2(sin \ 35^0)^2}{2*9.8}\\\\H = 2.84 \ m$

Therefore, the maximum height reached by the ball is 2.84 m

3 0

3 years ago

Secretariat is known as the horse with the fastest run in the Kentucky Derby. If Secretariat's record 1.25 mi run lasted 1 minut

zmey [24]

Answer:

v = 16.87 m/s

Explanation:

Given that,

Distance, d = 1.25 miles

d = 2011.68 m

Time, t = 1 minute 59.2 seconds

= 60 s + 59.2 s

= 119.2 s

We need to find the average speed of the horse. It is given by total distance covered divided by total time.

$v=\dfrac{2011.68 \ m}{119.2\ s}\\\\=16.87\ m/s$

So, his average speed is 16.87 m/s.

8 0

3 years ago