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2 years ago

An object has a fixed volume and a variable shape before it changes state.

Physics

2 answers:

EleoNora [17]2 years ago

8 0

Answer: the actual answer is liquid to gas

Explanation: I just took the test

Wittaler [7]2 years ago

4 0

Answer:

solid to liquid :)

Explanation:

APEX i just took it ;)

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A skateboarder starts up a 1.0-m-high, 30° ramp at a speed of 7.6 m/s . The skateboard wheels roll without friction. At the top,

andriy [413]

Answer:

t = 1.084 s

s = 8.25 m

Explanation:

given,

height from where skate board start (h) = 1 m

speed = 7.6 m/s

we know

v² = u² + 2 g h

v² =7.6² + 2×9.81× 1

v = 8.79 m/s

$v_y = v sin \theta$

$v_y =8.79\times sin 30^0$

$v_y = 4.39 m/s$

$s = s_o + v_y \times t +\dfrac{1}{2}at^2$

$0 = 1 + 4.39 \times t - 4.9 t^2$

t = 1.084 s

then horizontal distance

$s =v_x \times t$

$s = 8.79 \times cos 30^0 \times 1.084$

s = 8.25 m

5 0

2 years ago

What is the best explanation for the observation that the electric charge on the stem became positive as the charged bee approac

topjm [15]

Answer:

Option B seems to be the appropriate choice,

Explanation:

The given question is incomplete. Please find the attachment of the complete question.

From either the principle or law of the Coulombs, there would have been either pressure (force) through attachment or repulsion amongst charges.
It is evident from the analysis presented that perhaps the bee becomes positively (+) charged and would have been drawn either by negatively (-) charged roots of the plants or stem.

As a consequence, the vegetation is electric current polarized because as activated bee pursued.

3 0

2 years ago

Two passenger cars, car A and car B, of the same weight are put to a 30 mph head-on crash test. In the test, cars are pulled for

maksim [4K]

Answer:

the statements the correct one is A

Explanation:

Let's analyze this exercise, vehicles have the same mass and speed, so we can use the momentum impulse ratio

I = ∫ F dt = Δp

the Δp is the same for both cars since they have the same mass and the same speeds, so the momentum is the same in both vehicles

When they indicate that vehicle A was reduced more than vehicle B, this implies that the force acted for a longer time, to have the largest reduction in size, therefore the impact force was less in car A than in car B

Resisting the statements the correct one is A

7 0

2 years ago

FIRST TO ANSWER CORRECTLY GETS BRAIBLIEST!!

WINSTONCH [101]

Brushes, battery terminals, commutator, armature, magnets

7 0

2 years ago

For the circuit shown in the figure(figure 1) find the current through each resistor. Express your answers using two significant

Angelina_Jolie [31]

The current flowing in each resistor of the circuit is 4 A.

<h3>Equivalent resistance of the series resistors</h3>

The equivalent resistance of the series circuit is calculated as follows;

6 Ω and 4 Ω are in series = 10 Ω

5 Ω and 10Ω are in series = 15 Ω

<h3>Effective resistance of the circuit</h3>

$\frac{1}{R} = \frac{1}{R_1} + \frac{1}{R_2} \\\\R = \frac{R_1R_2}{R_1 + R_2} \\\\R = \frac{10 \times 15}{10 + 15} \\\\R = 6 \ ohms$

<h3>Current flowing in the circuit</h3>

V = IR

I = V/R

I = 24/6

I = 4 A

Learn more about resistors in parallel here: brainly.com/question/15121871

8 0

1 year ago