3 years ago

Water come out more slowly from an upstairs tap from a similar downstairs

1 answer:

4 0

Answer:

As we know that liquid pressure is depend upon the depth of liquid where the downstair tap has more depth so water come out with more pressure wheres the upstairs tap has less depth so water come out with low pressure so

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A tennis ball with a speed of 25.9 m/s is moving perpendicular to a wall. After striking the wall,

mihalych1998 [28]

Answer:

$-3550.1 m/s^2$

Explanation:

The initial velocity of the ball is

u = +25.9 m/s (towards the wall)

while the final velocity of the ball is

v = -21.3157 m/s (away from the wall)

The time taken for the change in velocity to occur is

t = 0.0133 s

The acceleration can be calculated as the change in velocity divided by the time taken:

$a=\frac{v-u}{t}$

Substituting the numbers, we find:

$a=\frac{-21.3157-25.9}{0.0133}=-3550.1 m/s^2$

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2 years ago

The graph below represents changes in water. What process is occurring during section “B” of the graph?

IrinaK [193]

The scientific inquiry process

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2 years ago

If the density of an object is 5.2 g/cm3, and volume is 3.7 cm3, what is its mass

netineya [11]

Here's the equation you use: Density = mass/volume

1) 5.2g/cm^3 = m/3.7cm^3

2) m = 5.2g/cm^3 x 3.7cm^3

3) m = 19.24g

You can check the answer by plugging it in

19.24g/3.7cm^3
= 5.2g/cm^3

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Difference between rest and motion

creativ13 [48]

Rest - it is the state in which body doesn’t move from it’s place

motion - it is the state in which body moves from it’s place