The density of table sugar is 1.59 g/cm3. What is the volume of 7.85 g of sugar?

Answers

Answer 1

Answer: $(7.85g )/(1.59 (g)/( cm^(3) ) )$ = 4.937 $cm^(3)$

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Sarah throws a ball directly upward at the edge of a cliff with a starting velocity of 3.0 m/sIt lands on the ground with a final speed of 6.0 m/s
How long is the ball in the air?
Round the answer to two significant digits

Answers

Answer:

The correct answer is t = 0.92s

Explanation:

Initial velocity v0 = 3.0 m/s

Displacement Δy = ?

Acceleration a = -9.8m/s2

Final velocity v = -6.0m/s

Time t=? Target unknown

We can use the kinematic formula missing Δy to solve for the target unknown t:

V=v0+at

We can rearrange the equation to solve to t:

V-v0=at

t= v-v0/a

Substituting the known value into the kinematic formula gives:

t= (-6.0m/s)-(3.0m/s)

————————————

-9.8m/s2

= -9m/s

—————-

-9.8m/s2

=0.92s

Sarah throws a ball directly upward at the edge of a cliff with a starting velocity of 3.0 m/s. It lands on the ground with a final speed of 6.0 m/s.

How long is the ball in the air?

Answer: 0.92

Tekanan gas yang berada dalam suatu ruangan dikurangi hingga setengahnya.hal ini menyebabkan suhu gas tersebut turun menjadi 3/4 dari semula.tentukanlah perbandingan volume gas akhir dan volume gas awal

Answers

PV/T =C

P.V1/T = 1/2P.V2/3/4T
V1= 4V2/6
V2/V1 = 6/4 =3/2

The earth has a circumference of about 25000 miles. How is it expressed in scientific notation?

Answers

2.5 * 10^4 miles

Yay!!!

What is the result of a force distributed over an area?a. pressure
b. mass
c. temperature
d. volume

Answers

Pressure is the result of a force distributed over an area.

What direction does current flow from a battery in a series circuit?A. From negative to positive terminals
B. From positive to negative terminals
C. In alternating directions
D. In more than 1 direction

Answers

What's now called "Conventional current" is thought of as the flow of positive charge, from the battery's positive terminal to its negative one.

But it turns out that positive charges don't flow. The physical flow of charge is the flow of electrons. They come out of the battery's negative terminal, and carry negative charge around the circuit to the battery's positive one.

B. From positive to negative terminals is the correct answer.

Where does potential energy come from

Answers

If earth were to every pull back on that object, this is where its kinetic energy will come from. Regarding some other planet pulling it, note that there is currently potential energy stored in the object(when it is onearth), in the other planet's gravitational field.

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Voltage sources are used to sustain a. the flow of protons b. chemical reactions c. resistance d. the movement of electric charge

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Describe the difference between a conductor and an insulator in terms of thermal energy transfer and provide an example of each.