All categories

4 years ago

A parachute works because the canvas of the parachute is acted upon by __________.

2 answers:

8 0

The question is asking to choose among the following choices that could complete the question about the inertia, base on my research and further investigation, the possible answer would be letter B. Gravity. I hope you are satisfied with my answer and feel free to ask for more

Tema [17]4 years ago

5 0

Answer:

Inertia

Explanation:

Hope this helps:)

You might be interested in

Two capacitors A and B are connected in

fredd [130]

Answer:

$Capacitor A = 0.24\mu F\\Capacitor B = 0.16\mu F$

Explanation:

I'll upload my work shortly as an attachment, but here is my process in words:

In our first situation we have two capacitors in parallel, which means the charge distribution on both of them is the same. With that, we can find a ratio between the values of Capacitors A and B.
In our second situation , we add a capacitor parallel to A (I called it C). Because A and C are in parallel, we know that they must have the same potential difference; which should come to be 10V since 90V of the total 100V is on B. Also, the equivalent charge distribution across A and C must be equal to that of the charge distribution at B, because A&C are in series with B. So I added the charges on A&C and set that equal to the charge on B.
Next, I used the ratio from the first situation to substitute Capacitor A out of the equation. This allows us to solve for B's capacitance. (Note: You could have also substituted B for A and solved for A first if you wanted to.)
Finally, I used B's capacitance to plug back into the ratio from the first situation to find A's capacitance. And they wanted the answer in micro-Farads, so I went ahead and converted each answer to micro.

5 0

4 years ago

1. Two magnetic north poles will do which of the following?

RoseWind [281]

Magnetic domains are which of the following?

8 0

3 years ago

When two waves are moving toward each other, and their crests line up with each other, it results in a wave with greater amplitu

Maurinko [17]

constructive interference

4 0

3 years ago

A 9.13e+3 kg railroad car is rolling at 3.15 m/s when a 4.20e+3 kg load of gravel is suddenly dropped in from directly above. Wh

Feliz [49]

Answer:

6.85 m/s

Explanation:

We can solve the problem by using the law of conservation of momentum.

In fact, since there are no external forces acting, the total momentum before and after must be conserved. So we can write:

$m_1 v_1 = m_2 v_2$

where

$m_1 = 9.13\cdot 10^3 kg$ is the initial mass of the car

$v_1 = 3.15 m/s$ is the initial speed of the car

$m_2 = 9.13\cdot 10^3 kg - 4.20\cdot 10^3 kg=4.93\cdot 10^3 kg$ is the mass of the car after the load of gravel is dropped

v2 is the final speed of the car

Solving for v2, we find

$v_2 = \frac{m_1 v_1}{m_2}=\frac{(9.13\cdot 10^3)(3.15 m/s)}{4.93\cdot 10^3}=6.85 m/s$

6 0

3 years ago

Antimony consists of two major isotopes with the following atomic masses: 121Sb (120.904 amu) and 123Sb (122.904 amu). The avera

Bad White [126]

Answer:

121Sb=57.2%

123Sb=42.8%

Explanation:

We are given that

Atomic mass of 121Sb=120.904 amu

Atomic mass of 123Sb=122.904 amu

Average atomic mass of antimony=121.760 amu

We have to find the percent of each of the isotope.

Let x be the percent of 121Sb and 1-x be the percent of 123Sb.

Using formula of average atomic weight

Average atomic weight=atomic weight of 121Sb $\times$ percentage abundance of isotope 121Sb+atomic weight of 123Sb $\times$ percentage abundance of isotope 123Sb