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Nataliya [291]
3 years ago
15

Calculate the decrease in gravitational potential energy of the ball as it moves down through the 0.90m the mass of the ball is

0.60kg
Physics
1 answer:
icang [17]3 years ago
8 0

Answer:

G.P.E = 5.292 Joules

Explanation:

Given the following data;

Mass = 0.6 kg

Height = 0.9 m

To find the gravitational potential energy;

Gravitational potential energy (GPE): it is an energy possessed by an object or body due to its position above the earth.

Mathematically, potential energy is given by the formula;

G.P.E = mgh

Where,

G.P.E represents potential energy measured in Joules.

m represents the mass of an object.

g represents acceleration due to gravity measured in meters per seconds square.

h represents the height measured in meters.

But we know that acceleration due to gravity is equal to 9.8m/s²

G.P.E = 0.6*9.8*0.9

G.P.E = 5.292 Joules

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Answer: Imma say balanced

Explanation:

Because if u pull one side of a skate board at 10n and your friend pulls the other side of the skate board at 10n it will be balanced because it doesn't move.

8 0
3 years ago
The angle of reflection is the angle between the normal line and the___?
Aleks [24]

Answer:

Reflected line

Explanation:

The angle between the reflected ray and the normal ray is called angle of reflection.

4 0
3 years ago
Find the total volume of the material used to making the cylinder​
gladu [14]

Answer:

Hey mate

Explanation:

Whereas the basic formula for the area of a rectangular shape is length × width, the basic formula for volume is length × width × height.

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2 years ago
The figure above shows a rod that is fixed to a horizontal surface at pivot P The rod is initially rotating
Lisa [10]

The angular speed is decreasing and direction of rotation clockwise of the rod immediately after time t.

<h3></h3><h3>What is angular speed ?</h3>

The rate of change of angular displacement is defined as angular speed.  It is stated as follows:

ω = θ t

Where,

θ is the angle of rotation,

t is the time

ω is the angular velocity

The torque is found as;l

\rm  T = F \times r

If the force is acting on the rod  from the three point is the same, the value of the torque is depends upon the radius or the perpendicular distance.

The perpendicular distance of the right force is grater. Hence, the force acting on the right side is more, and the rod will rotate clockwise.

Both the forces are acting downwards. Thus, the resultant force is the less due to which the speed is increasing.

Hence, the angular speed is decreasing and direction of rotation clockwise of the rod immediately after time t.

To learn more about the angular speed, refer to the link;

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5 0
2 years ago
A soccer ball with a mass of 0.45 kg is kicked and is moving at 8.9 m/s. Find the kinetic
strojnjashka [21]

Answer:

17.82J

Explanation:

Kinetic energy = 1/2 mv^2

Given

Mass M = 0.45kg

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Therefore,

K.E. = 1/2 x 0.45 x (8.9)^2

= 1/2 x 0.45 x (8.9 x 8.9)

= 1/2 x 0.45 x 79.21

Multiply through

= 35.6445/2

= 17.82J

The kinetic energy of the ball is 17.82J

3 0
3 years ago
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