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Nataliya [291]
3 years ago
7

The slope of a good speed Time indicates ?

Physics
1 answer:
11Alexandr11 [23.1K]3 years ago
8 0

The answer would be acceleration.

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If we heated the ball up and kept the ring room temperature, would the ball be able to fit through the ring? (1 point) Why or wh
Fed [463]

Answer:

no:

Explanation:

it would grow and no longer be able to fit through the loop due to the hot air expanding.

8 0
3 years ago
A 65.0-kg runner has a speed of 5.20 m/s at one instant dur- ing a long-distance event. (a) What is the runner’s kinetic energy
vladimir2022 [97]

Answer:

a)KE=878.8 J

b)W=2636.4 J      

Explanation:

Given that

mass ,m = 65 kg

Initial speed ,u = 5.2 m/s

a)

We know that kinetic energy KE is given as follows

KE=\dfrac{1}{2}mu^2

m=mass

u=velocity

Now by putting the values in the above equation we get

KE=\dfrac{1}{2}\times 65\times 5.2^2\ J

KE=878.8 J

b)

We know that

Work done by all forces = Change in the kinetic energy

The final velocity , v= 2 u = 2 x 5.2 m/s

v= 10.4 m/s

W=\dfrac{1}{2}mv^2-\dfrac{1}{2}mu^2

Now by putting the values in the above equation we get

W=\dfrac{1}{2}\times 65\times 10.4^2-\dfrac{1}{2}\times 65\times 5.2^2\ J

W=2636.4 J

a)KE=878.8 J

b)W=2636.4 J

8 0
3 years ago
Que unidad de medida se utiliza para expresar la capacidad o volumen de un objeto? Da un ejemplo
galina1969 [7]

Answer:

<em>Explicado a continuación</em>

Explanation:

Hay una pequeña diferencia conceptual entre la capacidad y el volumen de un objeto, a saber:

El volumen hace referencia al espacio que ocupa un objeto, mientras que la capacidad hace referencia al espacio que este contiene. Calcular el volumen de un cuerpo es medir cuánto ocupa mientras que calcular su capacidad es medir cuánto cabe en él.

En la práctica, ambos conceptos son usados indistintamente, ya que tienen unidades equivalentes.

El volumen tiene unidades de longitud al cubo, como por ejemplo:

m^3,\ cm^3\ ,dm^3,\ pie^3\ , pulg^3

y la capacidad se suele expresar en litros o unidades derivadas: litro, mililitro, centilitro, etc.

Como mencionamos, hay equivalencia engre los dos grupos de unidades. Entre las más conocidas están:

1\ lt=1\ dm^3,\ 1\ m^3=1000\ lt

5 0
3 years ago
2. What mass of sulphuric acid (density 1.84 g/<br>cm) can be held in a 250 ml bottle?​
Karolina [17]

volume \:  = 250 \: ml \\ 1 \: ml = 1 {cm}^{3}  \\ 250 \: ml = (1 \times 250) = 250 {cm}^{3}  \\ mass \:  =  \:  \frac{density}{volume}  \\ mass \:  =  \:  \frac{1.84}{250}  \\ mass \:  =  \: 0.00736 \: g

5 0
3 years ago
crate sits on a horizontal floor where the coefficient of static friction between the crate and the floor is 0.50. A 20-N force
mr_godi [17]

Answer:

The resulting static friction force acting on the crate is 10 N.

Explanation:

Given that,

Coefficient of static friction = 0.50

Normal force = 20 N

We need to calculate the resulting static friction force acting on the crate

Using formula of static friction force

f_{s}=\mu_{s}N

Where, N = normal force

\mu_{s} = Coefficient of static friction

Put the value into the formula

f_{s}=0.50\times20

f_{s}=10\ N

Hence, The resulting static friction force acting on the crate is 10 N.

6 0
3 years ago
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