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4 years ago

The slope of a line on a distance-time graph is

Physics

2 answers:

Nataly_w [17]4 years ago

5 0

Answer: The slope of a line on a distance-time graph is- speed of the object.

The slope of a line on a graph refers to rate of change of variable that is presented on Y axis with respect to the variable that is presented on X axis.

For a distance time graph, distance is presented on Y axis and time on the X axis.

As we know that $Speed= \frac{Distance}{time}$

Therefore, the slope of a line on a distance-time graph represents speed of the object.

aleksandr82 [10.1K]4 years ago

4 0

Slope of any given curve is defined as

Rate of change in quantity on Y axis with respect to the quantity on x axis.

Here on Y axis if we plot distance and on X axis if time is plotted then

Slope = [tex] \frac{ds}{dt}[/tex}

above expression is rate of change in distance with time which shows apped of object

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aleksklad [387]

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4 0

3 years ago

Read 2 more answers

A container with volume 1.83 L is initially evacuated. Then it is filled with 0.246 g of N2. Assume that the pressure of the gas

alisha [4.7K]

Answer:

The pressure is $P = 1652 \ Pa$

Explanation:

From the question we are told that

The volume of the container is $V = 1.83 \ L = 1.83 *10^{-3 } \ m^3$

The mass of $N_2$ is $m_n = 0.246 \ g = 0.246 *10^{-3} \ kg$

The root-mean-square velocity is $v = 192 \ m/s$

The root -mean square velocity is mathematically represented as

$v = \sqrt{ \frac{3 RT}{M_n } }$

Now the ideal gas law is mathematically represented as

$PV = nRT$

=> $RT = \frac{PV}{n }$

Where n is the number of moles which is mathematically represented as

$n = \frac{ m_n }{M }$

Where M is the molar mass of $N_2$

$RT = \frac{PVM_n }{m _n }$

=> $v = \sqrt{ \frac{3 \frac{P* V * M_n }{m_n } }{M_n } }$

=> $v = \sqrt{ \frac{ 3 * P* V }{m_n } } }$

=> $P = \frac{v^2 * m_n}{3 * V }$

substituting values

=> $P = \frac{( 192)^2 * 0.246 *10^{-3}}{3 * 1.83 *10^{-3} }$

=> $P = 1652 \ Pa$

3 0

3 years ago

This picture shows some fortified cereal in a bowl.

ikadub [295]

Cereals are usually fortified with three most common minerals and vitamins which are:
1- Iron
2- Vitamin D
3- Vitamin B-12

Comparing the above to the given choices, we will find that the best answer is:
b. iron

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4 years ago

A 91.1 kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.73 r

KIM [24]

Answer:

$\omega_f = 1.08 rad/s$