PHYSICS HIGH SCHOOL

How many g in 6 1/2 kg

Answers

Answer 1
Answer: there are 6,500 grams in 6 1/2 kilograms

Related Questions

Which explains how the Coriolis effect causes air circulation? A. Air from the equator moves toward the poles slower than the ground below it, so friction causes the air to veer east. In contrast, air from the poles moves toward the equator faster than the ground below it, so friction causes it to veer to the west. B. Air from the equator moves toward the poles faster than the ground below it, so friction causes the air to veer west. In contrast, air from the poles moves toward the equator slower than the ground below it, so friction causes it to veer to the east. C. Air from the equator moves toward the poles faster than the ground below it, so friction causes the air to veer east. In contrast, air from the poles moves toward the equator slower than the ground below it, so friction causes it to veer to the west. D. Air from the poles moves toward the equator faster than the ground below it, so friction causes the air to veer east. In contrast, air from the equator moves toward the poles slower than the ground below it, so friction causes it to veer to the west.
Which of the following statements about geothermal energy is not true?a. It is not a practical source of energy. b. It is an important source of energy in volcanically active areas. c. It works best when the magma pool is near the surface of Earth. d. It is a renewable source of energy.
A large sphere has a mass of 175 kg and is suspended by a chain from the ceiling. The mass of the chain is 12.0 kg. What is the tension in the chain?1830, N1610, N1720, N1940 N.
How does an atom charge if all the electrons are removed
Explain the difference between the following three substances: carbon c. , carbon dioxide (CO2), and oxygen (O2)

If the velocity of blood flow in the aorta is normally about 0.32 m/s, what beat frequency would you expect if 4.40-MHz ultrasound waves were directed along the flow and reflected from the red blood cells? Assume that the waves travel with a speed of 1540 m/s .

Answers

Answer:

The beat frequency is 0.0019 MHz.

Explanation:

Given that,

Velocity = 0.32 m/s

Frequency = 4.40 MHz

Speed of wave = 1540 m/s

We need to calculate the frequency

Case (I),

Observer is moving away from the source

Using Doppler's effect

f'=(v-v')/(v)f

Where, v' = speed of observer

Put the value into the formula

f'=(1540-0.32)/(1540)*4.40

f'=4.399\ MHz

Case (II),

Cell is as the source of sound of frequency f' and it moving away from the observer.

Using formula of frequency

f''=(v-v_(s))/(v+v_(s))* f

f''=(1540-0.32)/(1540+0.32)*4.399

f''=4.3971\ MHz

We need to calculate the beat frequency

\Delta f= f'-f''

\Delta f=4.399-4.3971=0.0019\ MHz

Hence, The beat frequency is 0.0019 MHz.

Suppose that you find the volume of all the oceans to be 1.4×109km3 in a reference book. To find the mass, you can use the density of water, also found in this reference book, but first you must convert the volume to cubic meters. What is this volume in cubic meters?

Answers

152.600.000
1 km3 = 1000.000m3

When a pot of water is put on a stove, the water at the top gets hot primarily by ____.a. radiation
c. convection
b. conduction
d. condensation

Certain materials can become superconductors under what conditions?
a. When it is very hot
c. Under very high pressure
b. When it is very cold
d. Under very low pressure

Answers

Answer
1. c. convection
2. b. When it is very cold

Explanation
Water like any other liquid transfer heat energy through convection. 

When a pot of water is put on a stove, the water at the top gets hot primarily by convection.

A supperconductor is a material that can conduct electric current with no resistance at all. 
The supperconductivity can be achieved under cooled temperatures. 

Certain materials can become superconductors under what conditions? When it is very cold

The first one is C. convection

Any force that causes an object to move in a circle is called a(n)a. balanced force.
b. unbalanced force.
c. gravitational force.
d. centripetal force.

Answers

a). balanced force
b). unbalanced force
There's no such thing as either of these.  A group of two or more forces can be balanced or unbalanced.  A single force can't be.

c). gravitational force ... doesn't cause an object to move in a circle;
     Drop a stone from the roof of a tall building and watch it fall.
     It goes straight down, not in a circle.

d). centripetal force ... force directed toward the center of a circle,
     causes an object to move in a circle.

an unbalanced force moving everyone in Daniel and Maria's direction

A wheelbarrow is experiencing two forces. One is pushing 5 N to the east and the other 5 N in the exact opposite direction. What must be true of the wheelbarrow's motion?

Answers

Answer:

its acceleration must be 0.

Explanation:

According the second Newton's law, the net force applied in a object is equal to the mass of the object multiplied by its acceleration:

F_(net) =m.a

In this case, the net force is

F_(net)=5N-5N=0

What makes sense since both forces have the same value and opposite directions.

Since the mass of the object can't be zero, the acceleration is the one that must be 0 in order fulfill the equation of the second newton's law.

Another option is that, since both forces are opposite, the wheelbarrow could be at rest. Though this is correct, this is not always true.

In conclusion, the only  statement that always is true about the wheelbarrow's motion is that its acceleration must be 0.
Assuming no other forces are acting on the wheelbarrow, it must be stationary.

Which of the following subsets of R³ are actually subspaces? (a) The plane of vectors (b1,b2,b3) with b1=b2 (b) The plane of vectors with b1=1 (c) The vectors with b1b2b3=0 .

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