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Aleksandr [31]
4 years ago
7

Imagine standing on a bathroom scale and reading your weight. now lift one foot and read your weight again. does the scale read

more, less or the same weight when you are standing on one foot?
Physics
2 answers:
7nadin3 [17]4 years ago
8 0
Less because now there is less force on the scale and you are unbalanced. Therefore the scale will have a lower number then before.

Vedmedyk [2.9K]4 years ago
3 0

Answer:B

Explanation: Because the weight will be greater with one leg lifted up in the air, it will make the weight more.

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A vehicle travels from a 30m marker to a 100m marker. What is the change in distance?
sesenic [268]
The change in distance is 30 because if you subtract both number you'll get 30
3 0
4 years ago
Read 2 more answers
In a police ballistics test, 2.00-g bullet traveling at 700 m/s suddenly hits and becomes embedded in a stationary 5.00-kg wood
aksik [14]

Answer:

  • Here we use the conservation of momentum theorem.

  • m stands for mass, and v stands for velocity. The numbers refer to the respective objects.

  • m1v1 + m2v2 = m1vf1 + m2vf2

  • Since the equation is perfectly inelastic, the final velocity of both masses is the same. Let’s account for this in our formula.

  • m1v1 + m2v2 = vf(m1 + m2)

<u>Let’s substitute in our givens.</u>

(0.002 kg)(700 m/s) + (5 kg)(0 m/s) = vf(0.002 kg + 5 kg)

I assume you are proficient in algebra I, so I will not include the steps to simplify this equation.

Note that I have considered the bullet’s velocity to be in the positive direction,

The answer is vf = 0.280 m/s

3 0
3 years ago
How did the volcano Mt. St. Helens form?
charle [14.2K]

Given what we know about volcanic formations, we can conclude that the Mt. St. Helens volcano was formed by the process described in option D, "Subduction  an oceanic continental convergent boundary caused a mountain  range to form and magma to come to the surface".

Mt. St. Helens is a volcano that falls under the category of a stratovolcano. Stratovolcanoes are volcanoes that commonly form at subduction zones. This process forms chains or clusters of mountains along the boundaries of tectonic plates, where oceanic crust is pulled under another type of crust. This process tends to form mountain ranges which contain volcanoes, such as:

  • Cascade Range (To which Mt. St. Helens belongs)
  • Los Andes
  • Rocky Mountains
  • Campania Mountain range

and so on.

To learn more visit:

brainly.com/question/3080956?referrer=searchResults

6 0
3 years ago
In a pendulum experiment the pendulum moves from one side to the other side in 0.6 second. Calculate the period of the pendulum.
-Dominant- [34]

Answer:

1.2 s

Explanation:

The period of a pendulum is the time it takes to complete one cycle, as in move and return to its initial state, for example going from one side to the other and coming back. If this pendulum goes from one side to the other in 0.6 s, it will take it the doble of that time to perform a cycle, and that is the period

T = 2 * 0.6 s = 1.2 s

5 0
4 years ago
A resistor, inductor, and a battery are arranged in a circuit. The circuit has an inductance of L = 1 H and a resistance of 1.4
shtirl [24]

Answer:

\tau \approx 7.14 \times 10^{-4}s \approx0.714ms

Explanation:

In a LC circuit The time constant τ is the time necessary for 60% of the total current (maximum current), pass through the inductor after a direct voltage source has been connected to it. The time constant can be calculated as follows:

\tau =\frac{L}{R}

Therefore, the time needed for the current to reach a fraction f = 0.6(60%) of its maximum value is:

\tau =\frac{1}{1.4\times 10^{3}} =7.142857143 \times 10^{-4} \approx7.14 \times 10^{-4}s

8 0
4 years ago
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