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3 years ago

Iron has more mass than gold. Does this mean that the density of iron is greater

Physics

2 answers:

Strike441 [17]3 years ago

6 0

Answer:

There masses are identical "I hope this helps"

kicyunya [14]3 years ago

3 0

I think it does mean that yeah

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Problem 28.3 Suppose that you are planning a trip in which a spacecraZ is to travel at a constant velocity for exactly six month

iragen [17]

Answer:

v = 0.999981c m/s

Explanation:

Using the time dilation equation

$T = \frac{T_{0} }{\sqrt{1 - \frac{v^{2} }{c^{2} } } }$

T = stationary time = 100 years

T₀ = 11/12 years = 0.917 years

v = speed of travel in the space = ?

c = speed of light = 3 * 10⁸ m/s

$100 = \frac{0.917 }{\sqrt{1 - \frac{v^{2} }{(3*10^{8} )^{2} } } }\\$

$(0.917/100) ^{2} = 1 - \frac{v^{2} }{ 9 * 10^{16} }$

v = 299987395.57 m/s

v = 2.99 * 10⁸ m/s

v = 0.999981c m/s

3 0

3 years ago

Which of these are a covalent compound?

nikdorinn [45]

C is a non-metal and so is O. So the answer is CO

8 0

3 years ago

Which vector correctly indicates the direction of centripetal acceleration experienced by the car?

Viktor [21]

Answer:

where is the answers ??

is there any answer called upward pointing arrow .

4 0

3 years ago

The rate constant for this first‑order reaction is 0.150 s−1 at 400 ∘C. A⟶products How long, in seconds, would it take for the c

Afina-wow [57]

Answer : The time taken for the concentration will be, 7.98 seconds

Explanation :

First order reaction : A reaction is said to be of first order if the rate is depend on the concentration of the reactants, that means the rate depends linearly on one reactant concentration.

Expression for rate law for first order kinetics is given by :

$k=\frac{2.303}{t}\log\frac{[A]_o}{[A]}$

where,

k = rate constant = $0.150s^{-1}$

t = time taken for the process = ?

$[A]_o$ = initial concentration = 0.860 M

$[A]$ = concentration after time 't' = 0.260 M

Now put all the given values in above equation, we get:

$0.150s^{-1}=\frac{2.303}{t}\log\frac{0.860}{0.260}$

$t=7.98s$

Therefore, the time taken for the concentration will be, 7.98 seconds

6 0

3 years ago

The free body diagram four objects are shown Which object has a net force of -5 N down?

max2010maxim [7]

Answer:

F-5-89

Explanation:

7 0

3 years ago