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Ede4ka [16]
2 years ago
7

Decide if each description below is an example of a change caused by energy. From the drop-down menu, choose "IS" if it is an ex

ample of a change in energy and "IS NOT" if it is not an example of a change in energy. A fireworks show an example of a change in energy. A child growing an example of a change in energy. A ball on the ground an example of a change in energy. A plant making food from the Sun an example of a change in energy. A car starting an example of a change in energy. A bat hitting a ball an example of a change in energy. An oven heating up an example of a change in energy.
Physics
1 answer:
barxatty [35]2 years ago
4 0

Answer:

z

Explanation:

z

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Someone just help me
Zanzabum
C according to my calculations
3 0
2 years ago
HELP MEEEE, question number 5
Kryger [21]

Answer:

Object A will get 200 & object B will get 400 Potential Energy

Explanation:

Potential Energy = mgh (mass x gravity x height)

For Object A :-

2 (mass) x 10 (approx gravity on Earth) x 10 (distance/height)

= 200

For Object B :-

4 x 10 x 10

= 400

Hence Object B will have High Potential Force than A.

Hope it helps. Thanks

6 0
2 years ago
What is the force of gravity between Earth (mass = 6.0 × 1024 kilograms) and Jupiter (mass = 1.901 × 1027 kilograms)? The distan
svlad2 [7]

Answer:

1.352 × 1018 newtons

Explanation:

The force of gravity between the two planets is given by:

F=G\frac{m_1 m_2}{r^2}

where

G=6.67\cdot 10^{-11} Nm^2 kg^{-2} is the gravitational constant

m_1 = 6.0\cdot 10^{24} kg is the mass of the Earth

m_2 = 1.901 \cdot 10^{27} kg is the mass of Jupiter

r=7.5\cdot 10^{11} m is the distance between the two planets

Substituting all the numbers into the equation, we find:

F=(6.67\cdot 10^{-11}) \frac{(6.0\cdot 10^{24})(1.901\cdot 10^{27})}{(7.5\cdot 10^{11})^2}=1.352\cdot 10^{18} N

6 0
3 years ago
Read 2 more answers
A 48kg skateboarder is ready to drop
Naily [24]

Hello, use the formula:

Pe = mgh

Data:

Pe = Potential energy = ¿?

m = Mass = 48 kg

g = Gravity = 9,81 m/s²

h = Height = 7 m

Replacing according our data:

Pe = 48 kg * 9,81 m/s² *  7 m

  • Resolving:

Pe =3296,16 J

The potential energy of the skateboarder is 3296,16 Joules

6 0
2 years ago
Which is not expecting acceleration?
TiliK225 [7]

#1)

1).  A point on the outside of a spinning top whose rotational speed is constant.

It will not accelerate as its net speed is ZERO

2).  A skydiver whose air resistance is equal to that of her weight.

Since weight is counterbalanced by resistance so here net force is zero so acceleration must be zero here

3).   A car on the freeway experiencing a net force of -120 N.

Since there it acts net force F = -120 N so it will accelerate here

4).  A submerged beach ball whose buoyant force is eight times the force of gravity on it.

Since buoyant force is more than weight of the ball so it will accelerate upwards

#2)

A non accelerating fra me is always a valid inertial frame

A frictionless spinning merry go round.

(since it is having centripetal acceleration so it is non inertial frame)

A falling rock.

(Since it is falling with acceleration a = 9.8 m/s^2 so it is non inertial)

A hot air balloon moving at 30 degrees east of north with no net force.

(Since net force on hot air balloon is ZERO so it is Inertial Frame)

A space shuttle whose boosters just ignited for takeoff.

(Since space shuttle ignite the boosters so it will accelerate here and hence it is non inertial)

#3

here two forces given as

F_1 = 4320 N towards right

F_2 = 4380 N towards Left

Since left side applied force is more than right side applied force so net force on it will be towards Left and it is given by

F = 4380 - 4320 = 60 N

So it is 60 N Left

7 0
3 years ago
Read 2 more answers
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