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3 years ago

According to the definition of power, a powerful person is able to do which of the following?

1 answer:

5 0

Power is energy per unit time. If he is powerful, it means he can spend more energy in short span of time, so option C ( i.e. <span>do more work in less time) is correct.</span>

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U will be marked as brainlest if u solve this!! Plz help! <br>I need answers from 3 to 6

Aleksandr [31]

Explanation:

3 mg=kx

4 mg=0.3×10

kx=3

5. gravitational force and spring force are applied on bloc.

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3 0

3 years ago

In each of the given pairs, choose which element will have the bigger atom. Give reasons for your choice. (a) Mg (atomic number

Dafna1 [17]

Answer:

Mg (atomic number 12)

K (atomic number 19)

Explanation:

The size of an atom is estimated in terms of its atomic radius.

The atomic radius is taken as half of the inter-nuclear distance between two covalently bonded atoms of non-metallic elements or half of the distance (d) between two nuclei in the solid - state of metals.

Across a period, atomic radii decrease progressively from left to right.
This is due to the progressive increase in the nuclear charge without increase in the number of electronic shells.
Down a group, atomic radii increase progressively due to the successive shells of electrons being added which have been compensated for by the increase in nuclear charge.

Cl is further right of Mg in the third period

K is below Na in the first group

3 0

3 years ago

A car has a mass of 1000 kg. It is driving to the right.

Akimi4 [234]

Answer:

Explanation:

What is a free body diagram?

Answer: a force diagram is a graphical illustration used to visualize the applied forces and resulting reactions on a body in a given condition

Drawing a free-body diagram for this problem

Answer: Look at the attached picture, ask me any questions if you are still confused. It is a little messy since I didn't have my pen.

Find its weight on Earth

Answer: The weight is dependent on the mass of the object and the gravitational constant on the planet. The gravitational constant, in this case, is 9.8.

so the weight = mass * gravitational constant = m * g = 1000 * 9.8

= 9800 N

Hope that helps!

7 0

3 years ago

At a sports event, 1, 045 spectators will be

LiRa [457]

Explanation:

Total number of buses =9178181

8 0

3 years ago

Read 2 more answers

Part A

Gemiola [76]

The Mass of the barter and the ball is 3.1kg

Data Given;

F = 1.1*10^-9N
r = 0.76m
G = 6.67*10^-11 m^3 kg^-1 s^-1

Assuming the barter and the ball have equal mass, we can apply gravitational force formula.

<h3>Gravitational Force</h3>

$F = \frac{Gm_1m_2}{r^2}$

This is product of the mass of the two bodies and divided by the square of their distance apart.

Substituting the values into the formula

$F = \frac{Gm_1m_2}{r^2\\}\\m_1 = m_2 = m\\1.1*10^-^9=\frac{6.67*10^-^1^1*m^2}{0.76^2} \\m^2 = \frac{1.1*10^-^9*0.76^2}{6.67*10^-^1^1} \\m^2 = 9.525\\m = \sqrt{9.525}\\m =3.086=3.1kg$

From the calculations above, the mass of the barter and the ball is 3.1kg

Learn more on gravitational force here;

brainly.com/question/11359658

8 0

3 years ago