Why is the sun considered the center of the solar system

1 answer:

4 0

The sun is by far the largest object in solar system.containing99.8 percent of the solar system's mass.it shed most of the heat and light that makes life possible on earth and possibly elsewhere.planets orbit the sun in oval-shaped paths called ellipses,with the sun slightly off center of each ellipse

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An unknown resistor is connected between the terminals of a 3.00 V battery. Energy is dissipated in the resistor at the rate of

katrin [286]

Answer:

The energy dissipate at a rate of 11.34 W when the resistor is connected between the terminals of a 1.50 V battery.

Explanation:

the rate at which energy dissipeted is given by power and we know that when given resistance, R and voltage, V then power is given by:

P = V^2/R

R = V^2/P

= (3.00)^2/(0.560)

= 5.04 ohms

then when the resistor is now connected between the terminals of a 1.50 V battery, then the power is given by:

P = V^2/R

= (1.50)^2/(5.40)

= 11.34 W.

Therefore, the energy dissipate at a rate of 11.34 W when the resistor is connected between the terminals of a 1.50 V battery.

4 0

3 years ago

How much force would you need to accelerate a 4 kg object from a standstill to 5 m/s2?

djyliett [7]

To solve this, we use Newtons 2nd law of motion which states that F = m⋅a . This means that a force F is required to make a body of mass m accelerate with an acceleration of a . So if a body of 4kg is to be accelerated by a force 17N then its acceleration can be found by putting into the formula F = m⋅a .

3 0

2 years ago

2.According to Newton’s first law, if no force acts on an object, it will just continue moving. Explain in terms of Newton’s fir

xxMikexx [17]

The answer

According to Newton’s first law, if no force acts on an object, it will just continue moving in a straight line with a constant speed or at rest
that means that the sum of all acting forces equals 0

so the car must
exert a force between the car and the road to drive at a constant speed on a straight and level road because the both forces must be balances for making it to move with a constant speed in a straight line.

6 0

3 years ago

In separate experiments, four different particles each start from far away with the same speed and impinge directly on a gold nu

nikitadnepr [17]

Answer:

Potential energy at the beginning: Ui =Qq/R*k ≈ 0 (particles are far apart)

Kinetic energy at the beginning: KEi = $mv^{2}$ /2