Ask question

Ask question

All categories

3 years ago

12

What is a good definition of acceleration

1 answer:

lilavasa [31]3 years ago

8 0

Rate of change of velocity is acceleration

You might be interested in

Every year _______ species go extinct.<br> a. 3<br> b. 72<br> c. 1000<br> d. 20000

Tems11 [23]

Well, the thing is: we don't really know, as we don't even know how many species there are on earth.

If we take a look at the estimates of <span>World Wide Fund for Nature, an organization that works toward combating species extinction, their estimates vary from 200 to 100 000 - but a probable number is 20 000 (d). </span>
<span />

7 0

2 years ago

Read 2 more answers

Which of these would be considered a drawback of hydroelectric power in an area that previously did not have access to this ener

SpyIntel [72]

Simple the answer is A and only 2 ones

3 0

2 years ago

A DC generator is the same as a(n)

nikdorinn [45]

Answer:

A DC generator is the same as a(n)

C. armature

7 0

2 years ago

Which best explains why no current is induced? The wire needs to be coiled less tightly. The wire needs to be straight, not coil

Ann [662]

The magnet needs to be held above the coils of wires

7 0

3 years ago

Read 2 more answers

Liquid water at 25°C and 1 bar fills a rigid vessel. If heat is added to the water until its temperature reaches 50°C, what pres

Tcecarenko [31]

Answer:

The developed pressure is 205.75 bar.

Explanation:

Given that,

Temperature of water =25°C = 273+25 = 298 K

Pressure = 1 bar

Increases temperature = 50°C = 273+50 = 323 K

Value of $\beta = 36.2\times10^{-5}\ K^{-1}$

Value of $k=4.42\times10^{-5}\ bar^{-1}$

Specific volume of liquid = 1.0030 cm³/g

We need to calculate the final pressure

Using formula for constant volume change

$\beta(T_{2}-T)_{1})-k(P_{2}-P_{1})=0$

Put the value into the formula

$36.2\times10^{-5}(323-298)-4.42\times10^{-5}(P_{2}-1)=0$

$P_{2}=\dfrac{36.2\times10^{-5}(323-298)}{4.42\times10^{-5}}+1$

$P_{2}=205.75\ bar$

Hence, The developed pressure is 205.75 bar.

5 0

2 years ago