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3 years ago

Anyone know how to do this

Physics

1 answer:

Charra [1.4K]3 years ago

8 0

The answer to your question is: Yes.

To solve each and every one, write the two given numbers in place of their letters in the given equation, and then solve the equation for the letter that's left.

For example, let's do #1 together. I'll do all the work, and you just watch.

#1 says that s=d/t. It also tells us that 'd' is 4 and 't' is 2. So here's a great idea: Why don't we write '4' where it says 'd', and write '2' where it says 't', and then see what we've got ?

s = 4/2

Wow ! We know that 4/2 is 2 . So s=2 and that's exactly the answer to the question !

Now it's YOUR turn. Do the next 25 problems the same way.

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Katherine johnson’s skill in what field led to nasa’s first moon voyage?

sertanlavr [38]

Answer: Katherine Johnson's knowledge of (mathematics) was instrumental in the return of the Apollo astronauts from the Moon to Earth.

4 0

2 years ago

An automobile steering wheel is shown. What is the ideal mechanical advantage? If the AMA is 8, what is the efficiency of the st

Mars2501 [29]

1. Ideal Mechanical Advantage (IMA): 9

Explanation:

For a wheel and axle system like the steering wheel, the IMA is given by:

$IMA=\frac{r_w}{r_a}$

where

$r_w$ is the radius of the wheel

$r_a$ is the radius of the axle

For the steering wheel of the problem, we see that $r_w = 18 cm$ and $r_a=2 cm$ , so the IMA is

$IMA=\frac{18 cm}{2 cm}=9$

2. Efficiency: 88.9%

Explanation:

The efficiency of a system is defined as the ratio between the AMA (actual mechanical advantage) and the IMA:

$\eta=\frac{AMA}{IMA}\cdot 100$

In this problem, AMA=8 and IMA=9, so the efficiency is

$\eta=\frac{8}{9}\cdot 100=88.9\%$

6 0

3 years ago

X = v xo t. x = (10.0 m/s)(3.53 s) x = ????

LenaWriter [7]

x = Vx * t

given Vx = 10m/s n t = 3.53s

x = 10 * 3.53

= 35.3m

7 0

3 years ago

Read 2 more answers

Which atomic model proposed that electrons move in specific orbits around the nucleus of an atom

BabaBlast [244]

Bohr's atomic model

8 0

3 years ago

Precipitation is greater over what and less over what? A. Land, sea B. Sea, land

Ksju [112]

I would say letter A to this because we need rain water for crops plants. Also we need it so that we can drink it. Its less great over sea because as it merge with the salt in the ocean it becomes less drinkable and less usable.

3 0

3 years ago