A marble statue has a mass of 6,200 grams and a volume of 2,296 cm3. What is the density of marble?

Explanation :

The resistance of the flashlight is 2.4 ohms

The current flowing in the circuit is 2.5 A

The Ohm's law gives the relation between the following quantities i.e.

Current

voltage

and resistance

Mathematically, Ohm's law can be written as :

V =I R

The voltage applied by the batteries is 6 volts.

Hence, this is the required solution.

Answer:

D - 6.0

Explanation:

i'm not getting more detailed than the other answer so yeah i just took the test

Answer:

B. The kinetic energy of the system is partially used for deforming the car.

Explanation:

For Plato users!

Answer: The potential difference across both the resistors is the same.

Explanation :

Given that, two resistors 3 -ohm and 6 ohms are connected in parallel across a 9-volt battery. The equivalent resistance, in this case, is given by :

In parallel combination, the current across each resistor divides and the potential difference remains the same.

So, the correct statement is (1) "The potential difference across the 6-ohm resistor is the same as the potential difference across the 3-ohm resistor."

The statement best compares the potential difference across each resistor will be 1.

What is resistance?

Resistance is a type of opposition force due to which the flow of current is reduced in the material or wire. Resistance is the enemy of the flow of current.

The equivalent resistance is given by;

When two resistors are connected in parallel, the current across each resistor splits while the potential difference stays constant.

The potential difference across the 6-ohmresistor is the same as the potential difference across the 3-ohm resistor.

Hence the statement best compares the potential difference across each resistor will be 1.

To learn more about the resistance refer to the link;

brainly.com/question/20708652

Explanation:

(a) To determine the work the child must do on the toboggan to pull it at constant velocity up the hill, we can use the work-energy principle.

1. Calculate the gravitational potential energy of the toboggan at the top of the hill:

- Gravitational potential energy = mass * gravity * height

- Mass of the toboggan = 4.81 kg

- Gravity = 9.8 m/s^2 (approximate value)

- Height = 27.3 m

- Gravitational potential energy = 4.81 kg * 9.8 m/s^2 * 27.3 m

2. Calculate the work done by the child:

- The work done is equal to the change in gravitational potential energy.

- Since the toboggan is pulled at constant velocity, the work done is equal to the negative of the change in gravitational potential energy.

- Work done by the child = - (4.81 kg * 9.8 m/s^2 * 27.3 m)

(b) To repeat part (a) with a different angle, we need to recalculate the gravitational potential energy and work done.

1. Calculate the new height:

- Height = 27.3 m

2. Calculate the new work done:

- Work done by the child = - (4.81 kg * 9.8 m/s^2 * 27.3 m)

General conclusion:

When the vertical height remains the same, but the angle decreases, the work done by the child to pull the toboggan at constant velocity up the hill remains the same. This indicates that the angle of the incline does not affect the amount of work done in this scenario.

(c) When the child slides down the hill on the toboggan, both gravitational potential energy and kinetic energy are involved. The total work done on the child and toboggan during the slide can be calculated as the change in mechanical energy.

1. Calculate the initial gravitational potential energy at the top of the hill:

- Gravitational potential energy = mass * gravity * height

- Mass of the child and toboggan combined = 25.6 kg + 4.81 kg

- Height = 27.3 m

- Gravitational potential energy = (25.6 kg + 4.81 kg) * 9.8 m/s^2 * 27.3 m

2. Calculate the final kinetic energy at the bottom of the hill:

- Kinetic energy = 0.5 * mass * velocity^2

- Mass of the child and toboggan combined = 25.6 kg + 4.81 kg

- Velocity = calculated using the conservation of mechanical energy, assuming no energy losses due to friction or other factors

3. Calculate the total work done:

- Total work done = change in mechanical energy

- Change in mechanical energy = final kinetic energy - initial gravitational potential energy

Therefore, to determine the total work done on the child and toboggan during the slide, we need to calculate the initial gravitational potential energy and the final kinetic energy.

I hope this helps :)