PHYSICS HIGH SCHOOL

How does size of an object affect its gravity

Answers

Answer 1
Answer:

Answer:

the more particles packed together the faster it falls

Explanation:

the mass + the 1 constant g-force = the speed without adding air resistance

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The statement that "The universe is the same everywhere and does not change over time" is known as _____.a. the cosmological principle b. the perfect cosmological principle c. the oscillating universe theory d. the steady state theory
If the current in each wire is the same, which wire produces the strongest magnetic field?-a wire that is 1mm thick and not coiled-a wire that is 2mm thick and not coiled-a wire that is 1-mm thick and coiled-a wire that is 2-mm thick and coiled
If the amplitude of the resultant wave is twice as great as the amplitude of either component wave, and the wave exhibits reinforcement, the component waves mustA. Have a different wave length than the resultant wave B. Be in phase with each other C. Have a different frequency than the resultant wave D. Be traveling in the opposite direction of the resultant wave

The acceleration of gravity is a constant equal to _______ meters per second squared.A. 9.8
B. 8.4
C. 10.2
D. 7.6

Answers

The acceleration due to gravityis the acceleration on an object caused by force of gravitation. It means thatthe earth has a gravitational field that projects all bodies on earth towards itscenter. The gravity of an object or body of an object is high on earth than atthe atmosphere. It has an average of gravitational constant equal to 9.8066 or9.8 meters per second. In truth, the acceleration of the object depend upon itslocation, the latitude and altitude, on earth.     

Answer:

A. 9.8

Explanation:

Why voltmeter and resistence are parallel in ohm's law.

Answers

Never mind Ohm's Law.  A voltmeter measures the difference in electrical potential
between two points.  So if you want to measure the difference in electrical potential
between two points, you touch one probe of the meter to each point, and somehow
the internal guts of the meter are able to sense the difference in electrical potential
between the two points.

If the two points have non-reactive impedance (a resistance) between them, then the
difference in electrical potential between the two points, as indicated by the meter,
will be close to (resistance between the two points) x (current flowing between them).

A charge of 0.2 C experiences an electric force of 5 N. What is the strength of the electric field in N/C?

Answers

YOUR ANSWER SHOULD BE AS FOLLOWS

25N/C
\vec{E}=\frac{\vec{F}}{q}\n \n \vec{E}=(5 \ N)/(0.2 \ C)=25 \ N/C

If an alloyed guitar B string (147 Hz resonance) has an average diameter of .6 mm over an effective oscillating length of 65 cm, what is the tension in Newtons if the alloy is 10% aluminum and 90% copper? (assume the specific gravities of the metals are 2.6 and 8.9 grams per cubic centimeter, respectively)

Answers

Answer:

73.8 N

Explanation:

The total volume is,

V = (m_Al)/(P_Al) = (m_copper)/(P_copper)

=  (10m)/((100)(2.6)) = (90m)/((100)(8.9))

= 0.1396 m

The average  density is,

p = (m)/(V)

= (m)/(0.1396)

= 7.169 g/cm³

The linear mass density is,

μ = pπr²

= (7.169 x 10⁹) (π (0.3 x 10⁻³)²)

= 2.026 x 10⁻³ Kg/m

The fundamental mode of length is,

L =  λ/2

λ=2L

= 2 x 0.65

= 1.3 m

The speed of the wave is,

v = λf

= 1.3 m x 147 Hz

= 1.91 m/s

The tension is,

v =  √T/ц

T = ц v²

= 2.026 x 10⁻³)(1.91 m/s)²

= 73.769N

73.8N

A _______ is a repeating disturbance or vibration that transfers or moves energy from place to place without transporting mass.force
wave
vacuum
medium
PLZ help me!

Answers

the answer is a wave

Answer:

The Answer is WAVE

Explanation:

A reaction in which small nuclei combine to form a heavier nucleus is called ____. a. fission c. background radiation b. a chemical reaction d. fusion

Answers

The correct answer is D) fusion. In fact, nuclear fusion occurs when two (or more) small nuclei combine to form a heavier nucleus. In the process, a large amount of energy is released, according to Einstein's formula E=mc^2, where m is the mass converted into energy in the reaction. An example of nuclear fusion is the fusion of two nuclei of hydrogen into a nucleus of helium-4.
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