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3 years ago

14

What is the push and pull when two kids are on a seesaw and one of them is in the air? What is causing a change in SPEED, or DIR

ECTION, or both?

1 answer:

balandron [24]3 years ago

3 0

That doesn't make sense I don't think it cause eaither

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What is the kinetic energy of a 8kg cart pushed at a rate of 2 m/s?<br> Help please

GuDViN [60]

The kinetic energy of the cart is 16 J

Explanation:

The kinetic energy of an object is the energy possessed by the object due to its motion. Mathematically, it is calculated as:

$K=\frac{1}{2}mv^2$

where

m is the mass of the object

v is its speed

For the cart in this problem,

m = 8 kg is its mass

v = 2 m/s is its speed

Substituting, we find its kinetic energy:

$K=\frac{1}{2}(8)(2)^2=16 J$

Learn more about kinetic energy:

brainly.com/question/6536722

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3 years ago

A 20 kω resistor is connected in series with an initially uncharged 100 μf capacitor and a 5 v battery. What is the charge on th

madam [21]

Hi there!

We can use the equation for the charge of a charging capacitor:
$q(t) = C\epsilon( 1 - e^{-\frac{t}{RC}})$

Using Capacitor equations:
$C = \frac{Q}{V}}\\\\Q = CV$

Therefore, Cε equals the steady-state charge of the capacitor (the function approaches this value as t ⇒ ∞.

We can plug in the givens and solve.
$\epsilon = 5 V\\\\C = 100\mu F = 0.0001 F$

$Q = C \epsilon = (0.0001)(5) = \boxed{0.0005 C}$

4 0

2 years ago

What is the most violent star death called

gogolik [260]

Hi there!

The most violent star death is a Supernova. This is the massive explosion of a supergiant star as it's fuel source runs out and it can no longer fuse iron at its core safely. This causes the star to swell to unstable sizes until it explodes in a Supernova. The amount of energy that is output during a supernova is equivalent to all the energy our own Sun outputs in its whole lifetime.

6 0

4 years ago

A 2.5-cm-diameter parallel-plate capacitor has a 2.2 mm spacing. The electric field strength inside the capacitor is 6.0×104 V/m

vladimir2022 [97]

Explanation:

The given data is as follows.

Separation between two plates, d = 2.2 mm = $2.2 \times 10^{-3} m$

Electric field strength inside the capacitor, E = $6.0 \times 10^{4} V/m$

Therefore, we will calculate the potential difference across the capacitor as follows.

V = Ed

= $6.0 \times 10^{4} V/m \times 2.2 \times 10^{-3} m$

= 1.32 V

Thus, we can conclude that the potential difference across the given capacitor is 1.32 V.

3 0

3 years ago

Select. The star cycle that is accurate

melomori [17]

One stellar-mass star, red giants, white dwarfs, or planetary nebulae will make up the correct star cycle. Option C is correct.

<h3 /><h3>What is the solar system?</h3>

The satellites of the planet, countless comets, asteroids, and meteoroids, as well as the interplanetary medium, make up the solar system.

The complete question is;

"Choose the correct star life cycle.

A. Supernova, star as well as red giant, the nebula is incorrect.

B. Nebula, white dwarf, planetary nebula That is incorrect.

C. Planetary nebula, red giant, white dwarf, and star with a single stellar mass That is true!

D. Nebula, a star of one stellar mass, is not correct. It is correct if the star had four or more stellar masses."

Star of one stellar mass, red giant, white dwarf, and planetary nebula make up the proper life cycle.

Hence option C is correct.

To learn more about the solar system refer to the link;

brainly.com/question/1207587

#SPJ1

5 0

2 years ago