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Anon25 [30]
3 years ago
15

PLEASE HELPPP ASAP, I'LL GIVE BRAINLEST​

Physics
1 answer:
zmey [24]3 years ago
6 0

Answer:

a) Joules

b) W (symbol for work) (J is symbol for Joules)

c) seconds

d) watts

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NEWTON LAWS
Vika [28.1K]

Answer:

it's Newton's first law of motion

As the law states that.

Everybody continues in its rest or of uniform motion unless an external force acts on it.

8 0
3 years ago
Read 2 more answers
A 3250-kg aircraft takes 12.5 min to achieve its cruising
scoundrel [369]

Answer:

effeciency n = = 49%

Explanation:

given data:

mass of aircraft 3250 kg

power P = 1500 hp = 1118549.81 watt

time = 12.5 min

h = 10 km = 10,000 m

v =85 km/h = 236.11 m/s

n = \frac{P_0}{P}

P_o = \frac{total\ energy}{t} = \frac{ kinetic \energy + gravitational\ energy}{t}

kinetic energy= \frac{1}{2} mv^2  =\frac{1}{2} 3250* 236 = 90590389.66 kg m^2/s^2

kinetic energy = 90590389.66 kg m^2/s^2

gravitational energy = mgh = 3250*9.8*10000 = 315500000.00  kg m^2/s^2

total energy = 90590389.66 +315500000.00 = 409091242.28 kg m^2/s^2

P_o =\frac{409091242.28}{750} = 545454.99 j/s

effeciency\ n = \frac{P_o}{P} = \frac{545454.99}{1118549.81} = 0.49

effeciency n = = 49%

8 0
3 years ago
Which of the following graphs best represents the relationship between the gravitational potential energy of a freely falling ob
VLD [36.1K]

Answer:

The last graph.

Explanation:

Gravitational potential energy is the energy possessed by a body at a given height from the Earth's surface.

The formula to find the gravitational potential energy is given as:

U=mgh

Where, 'U' is the gravitational potential energy.

'm' is the mass of the body.

'g' is the acceleration of the body due to gravity.

'h' is the height of the body above the Earth's surface.

So, from the above equation, it is clear that, gravitational potential energy is directly proportional to the height. So, as height increases, the gravitational potential energy increases. At the surface of Earth, where, height is 0, the gravitational potential energy is also zero.

Therefore, the correct graph is a straight line with positive slope and passing through the origin. So, the last option is the correct one.

3 0
3 years ago
Momentum,
Serggg [28]

Answer:

THE WALL MOVES AWAY FROM THE BALL

Explanation:

NEWTON'S THIRD LAW STATES THAT THERE IS A OPPOSITE REACTION

5 0
3 years ago
A battery supplies 0.75 A to three resistors connected in parallel. The current through the first resistor is 0.24 A and the cur
Anastasy [175]
Total current flow in circuit=0.75
Current flow through third resistor=0.75-(0.24+0.22)
=0.29
7 0
3 years ago
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