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3 years ago

Which statement accurately describes impulse?

Physics

2 answers:

KiRa [710]3 years ago

7 0

Answer:

Impulse is related to momentum because impulse is a term that describes object's change in momentum. The measurable quantity of momentum changing is called impulse.

netineya [11]3 years ago

4 0

Answer:

Impulse is equal to the change in momentum.

Explanation:

It was a risk,but I took it and it was the right answer

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When I double displacement reaction takes place, one of the products must be_______.

sattari [20]

Answer:

the answer would be Salt

Explanation:

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2 years ago

Read 2 more answers

For years, the tallest tower in the United States was the Phoenix Shot Tower in Baltimore, Maryland. The shot tower was used fro

Mariulka [41]

Answer:

The velocity of the droplet right before it hits the ground is 40.08 m/s.

Explanation:

To determine the velocity of the droplet right before it hits the ground,

From one of the equations of kinematic for free fall motions,

v = u + gt

Where v is the final velocity

u is the initial velocity

g is acceleration due to gravity (take g = 9.8 m/s²)

and t is time

For the question, v is the velocity of the droplet right before it hits the ground.

u = 0 m/s (Since the molten lead was dropped from rest)

Therefore,

v = gt

First, we will determine the time t

Also, from one of the equations of kinematic for free fall motions,

h = ut + 1/2(gt²)

u = 0 m/s

From the question, the molten lead was dropped from the top of the 82.15 m tall tower, therefore

h = 82.15

Hence,

82.15 = 0×t + 1/2 (9.8 × t²)

82.15 = 1/2 (9.8 × t²)

82.15 = 4.9 t²

t² = 82.15/4.9

∴ t = 4.09 secs

Now, for the velocity v, of the droplet right before it hits the ground,

Recall

v = gt

Then,

v = 9.8 × 4.09

v = 40.08 m/s

Hence, the velocity of the droplet right before it hits the ground is 40.08 m/s.

5 0

3 years ago

If you dive underwater, you notice an uncomfortable pressure on your eardrums due to the increased pressure. The human eardrum h

irinina [24]

Answer:

$h=10m$

Explanation:

From the question we are told that:

Area $a=70 x 10^{-6}$

Force $F=7N$

Generally the equation for Pressure is mathematically given by

Pressure = Force/Area

$P=\frac{F}{A}$

$P=\frac{ 7}{(70 * 10^{-6})}$

$P= 1*10^{5} Pa$

Generally the equation for Pressure is also mathematically given by

$P=hpg$

Therefore

$h=\frac{P}{hg}$

$h=\frac{10000}{1000*9.8}$

$h=10m$

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3 years ago

A scientist tested Charles’s law, which states that volume is directly related to temperature. Assume constant pressure. What wi

sergeinik [125]

Based on the options given, the most likely answer to this query is

B) as volume decreases, temperature decreases.
Charles' law states that when volume increase or decrease, accordingly, temperature becomes similar.

Thank you for your question. Please don't hesitate to ask in Brainly your queries.

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3 years ago

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A 2.0 kg otter starts from rest at the top of a muddy incline 85 cm long and slides down to the bottom in 0.50 s. What net force

Julli [10]

Answer:

The net force acting on the otter along the incline is 13.96 N.

Explanation:

It is given that,

Mass of the otter, m = 2 kg

Distance covered by otter, d = 85 cm = 0.85 m

It takes 0.5 seconds.

We need to find the net force acts on the otter along the incline. If a is the acceleration of the otter. It can be calculated using second equation of motion as :

$d=ut+\dfrac{1}{2}at^2$