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max2010maxim [7]
2 years ago
15

When was the most gravitational potential energy stored between the model and Earth? Assume that the model's mass did not change

.​
Physics
1 answer:
Lyrx [107]2 years ago
8 0

Answer:

As the ball falls from C to E, potential energy is converted to kinetic energy. The velocity of the ball increases as it falls, which means that the ball attains its greatest velocity, and thus its greatest kinetic energy

Explanation:

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In the following lever system, what is the clockwise torque? 18 Nm 240 Nm 360 Nm 480 Nm
MaRussiya [10]

Answer:

240 Nm

Explanation:

The clockwise torque is the torque determined only by the force that makes the lever rotating clockwise: therefore, the force of 80 N on the right.

The torque produced by this force is given by:

\tau = F d

where

F is the magnitude of the force

d is the arm

For the force of 80 N on the right,

F = 80 N

d = 3 m (distance from the pivot)

So, the clockwise moment is

\tau = (80)(3)=240 Nm

3 0
3 years ago
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When a wire with a current is placed in a magnetic field, electrical energy is transformed into mechanical energy
babymother [125]

Answer:

TRUE

Explanation:

When a wire with a current is placed in a magnetic field, electrical energy is transformed into mechanical energy. The transformation happens when the magnetic field produced by the current causes the wire to move.

8 0
2 years ago
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ludmilkaskok [199]
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3 0
3 years ago
A 1000-kg car is driving toward the north along a straight horizontal road at a speed of 20.0 m/s. The driver applies the brakes
Fofino [41]

Answer:

Force will be acting southward and the magnitude of force will be 1000 N

Explanation:

given,

mass of car = 1000 Kg

initial speed of the car (u) = 20 m/s

final speed of the car (v) = 0 m/s

distance to stop the car = 200 m

using equation of motion

v² = u² + 2 a s

0 = 20² + 2 x a x 200

400 a = -400

a = -1 m/s²

Now, we know

Force = mass x acceleration

F = 1000 x -1

F = -1000 N

- ve sign of force represent force will be acting in the opposite direction of motion.

Force will be acting southward and the magnitude of force will be 1000 N

6 0
3 years ago
The driver of a car traveling at 21 m/s applies the brakes and decelerates at the rate of -3.8 m/s. (a) How long does it
ANEK [815]

Answer:

105/19

Explanation:

it may exppressed in negative if the velocity is not negative

6 0
3 years ago
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