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Charra [1.4K]
2 years ago
14

A rifle is aimed horizontally at a target 50.0 m away. The bullet hits the target 2.90 cm below the aim point. . . Whats the bul

let's flight time?. Whats the bullet's speed as it left the barrel?
Physics
1 answer:
Marina CMI [18]2 years ago
5 0
The problem ask to calculate the bullet's flight time and the bullet's speed as it left the barrel. So base on the problem, the answer would be that the flight time is 0.076 seconds and the speed of the bullet is 657.9 m/s. I hope you are satisfied with my answer and feel free to ask for more if you have questions and further clarifications. 
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Question 1
Vesna [10]

Answer:

1)  g = 4π² / m, 3) xaxis the  length of the pendulums and the y axis the period squared

Explanation:

a) students can approximate this system to a simple pendulum, in this case the angular velocity is

         w = √ g / l

angular velocity, frequency and period are related

         w = 2π f = 2π / T

we substitute

         T = 2π√ l / g

with this equation they can determine the value of the acceleration of gravity, for this they measure the period for various lengths of the pendulum and graph

        T² = 4π²  l / g

We graph T² vs l

where this is the equation of a line if the independent variable is y = T² and x = l

        y = (4π² / g)  l

so the slope is

         m = 4π² / g

clearing

         g = 4π² / m

where the slope can be found with the values ​​of the line not the experimental values.

2) to carry out the experiment, or the thread is attached to the sphere, the length of the pendulum that goes from the pivot point to the center of the sphere is measured with a tape measure and a small finished angle is turned or less than 10th is released, it is good to wait for the first oscillation to walk, the time of a determined number of oscillations is generally measured 10 or 20, the period is calculated

    T = t / n

a table of T² against the length is made and it is plotted with the length in the ax ax, we look for the slope and hence the acceleration of gravity

3) on the independent x-axis, the controlled variable must be plotted, which is the length of the pendulums, and on the y-axis, the dependent variable is the period squared

4) of the equation of the line

            m = 4pi2 / g

                 where it ends up reaching the floor

            g = 4pi2 / m

5) when the spring is cut, the sphere remains under the effect of gravity acceleration, the harmonic movement disappears and the sphere is in a vertical movement

5 0
3 years ago
An additional factor in how an element is rendered is that properties are passed from a parent element to its children in a proc
LekaFEV [45]

Answer:

An aaditional factor in how an element is rendered is that properties are passed from a parent element to its children in a process known as <u>Style inherritance.</u>

Explanation:

In cascading style sheets (CSS) properties can be inherited from parent to children. But it does not do it all the time as in some cases it does not make sense. Through style inherritance one can specify the font properties etc which then will be transferred to all other elements.

3 0
3 years ago
Read 2 more answers
A girl pushes a cart with a force of 10 N. if the cart has a mass of 5 kg, what is its acceleration?
nikklg [1K]

Explanation:

Force=Mass*acceleration or F=MA. To find acceleration can be rewritten as A=F/M. If you input the numbers ypu can rewrite as A= 10N/5kg, A=2

The acceleration is 2 meters per sec.

8 0
3 years ago
Speed is a component of skill related fitness. what does speed enable you to do
AveGali [126]
To complete a task in a short amount of time/get from A to B in the quickest amount of time

Hope helps!
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3 years ago
6. And what's up with ChiN?
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I don’t know what’s up with chin man ??
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