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3 years ago

Plzzz help will mark brainliest

Physics

2 answers:

Reptile [31]3 years ago

8 0

The answer is A or 1.0

Lady_Fox [76]3 years ago

5 0

Answer: A. 1.0

Explanation:

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What type of reaction requires the greatest energy to get started? A. fusion B. fission C. physical D. chemical

Vilka [71]

What do u mean by that

4 0

3 years ago

Read 2 more answers

You have a perfectly circular apple pie with a radius of 15cm. You cut the pie into 12 approximately equal slices. What is the a

Sedaia [141]

Answer:

7.85 cm

30 degree

Explanation:

As we know that that the angular displacement in one turn is 360 degree.

As there are 12 parts which are equally divided so the angle turn by each part is

= 360 / 12 = 30 degree

Thus, the angular displacement of each slice is 30 degree.

Radius of pie = 15 cm

Circumference of pie = 2 x 3.14 x 15 = 94.2 cm

Arc length for complete 360 degree = 94.2 cm

Arc length for 30 degree turn = 94.2 x 30 / 360 = 7.85 cm

5 0

4 years ago

(a) Find the voltage near a 10.0 cm diameter metal sphere that has 8.00 C of excess positive charge on it. (b) What is unreasona

antoniya [11.8K]

Answer:

Part a)

$V = 7.2 \times 10^{11} Volts$

Part b)

this is a large potential which can not be possible because at this high potential the air will break down and the charge on the sphere will decrease.

Part C)

here we can assume the sphere is placed at vacuum so that there is no break down of air.

Explanation:

Part a)

As we know that the potential near the surface of metal sphere is given by the equation

$V = \frac{kQ}{R}$

here we have

Q = 8 C

R = 10.0 cm

now we have

$V = \frac{(9\times 10^9)(8 C)}{0.10}$

$V = 7.2 \times 10^{11} Volts$

Part b)

this is a large potential which can not be possible because at this high potential the air will break down and the charge on the sphere will decrease.

Part C)

here we can assume the sphere is placed at vacuum so that there is no break down of air.

3 0

3 years ago

Question 18 of 25

gayaneshka [121]

Answer:

Endothermic, because the reactants are lower in energy (C)

Explanation:

From the graph, you can see the energy of the products is higher than the energy of the reactants. If you recall that when the enthalpy change Eproducts is gretater than Ereactants, the reaction is said to be endothermic.

7 0

3 years ago

A 10 kg box accelerates for at a rate of 12 miles per second what is the force acting on the box

lions [1.4K]

193080N

Explanation:

Given parameters:

Mass of the box = 10kg

Acceleration = 12miles per second

Unknown:

Force on the box = ?

Solution:

The force acting on the box is function of the mass and acceleration of the box.

Force = mass x acceleration

Now we need to convert the given acceleration to m/s

1000m = 1km

1.609km = 1miles

$\frac{12 miles }{seconds }$ x $\frac{1.609km}{1miles}$ x $\frac{1000}{1km}$

= 19308m/s

Force on box = 10 x 19308 = 193080N

Learn more:

Force problems brainly.com/question/4033012

#learnwithBrainly

7 0

3 years ago

Plzzz help will mark brainliest ​

Plzzz help will mark brainliest