YAHOO ANSWERSA 1260 kg car moving south at 12.9 m/s collides with a 2430 kg car moving north. The cars stick together and move as a unit after the collision at a velocity of 4.38 m/s to the north. Find the velocity of the 2430 kg car before the collision.

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Answer 1

Answer:

Explanation:

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What is the difference in the charges on a ballon rubbed in your hair and a glass rod rubbed

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If the voltage in a circuit is 24 V and the current is 2 A, what is the total power in the circuit?

Answers

V = Voltage in the circuit = 24 Volts

i = Current flowing in the circuit = 2 A

P = Total power dissipated in the circuit.

Total Power dissipated in a current carrying circuit is given as

P = i V

inserting the above values of the current and voltage in the above equation , we get

P = (2 A) (24 V)

P = (2 x 24) (AV)

P = 48 Watt (Since Ampere -Volt = watt)

maybe you can divide the volts its twelve if you do that but itll show you how much to double it by

True or false one of the benefits of using an exercise ball is generally involves the core muscles?

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the answer is true improve core stability

This is true in many cases, but not all. There are exercises in which you simply raise and lower an exercise ball over your head (kind of like weight lifting), but whenever the ball is in front of you and you reach out at all with your arms, that is a core workout.

ICl has a higher boiling point than Br2. What is the best explanation for this?

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Iodine Monochloride (ICI) is an interhalogen or compound. ICI has an intermolecular attraction which makes it more difficult to boil compare to Bromine (Br2). Brorime is among the halogens along with fluorine, chlorine, iodine and astatine. Bromine is a nonpolar substance while ICI is a polar compound.

How are airplanes artificially pressurized?

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Just like a party balloon.

a sphere rolls down without slip on an inclined plane of inclination theta. what is the linear acceleration as the sphere reaches the bottom

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Answer:When a sphere rolls down an inclined plane without slipping, its linear acceleration at the bottom can be calculated using the following formula:

a = g * sin(theta)

where "a" is the linear acceleration, "g" is the acceleration due to gravity (approximately 9.8 m/s^2), and "theta" is the angle of inclination of the plane.

Let's break down the formula step by step:

1. First, we need to determine the component of the gravitational force that acts parallel to the inclined plane. This component is given by g * sin(theta), where "g" is the acceleration due to gravity and "theta" is the angle of inclination.

2. Since the sphere is rolling without slipping, the frictional force between the sphere and the inclined plane is responsible for its linear acceleration. This frictional force is equal to the component of the gravitational force parallel to the plane.

3. Therefore, the linear acceleration of the sphere as it reaches the bottom of the inclined plane is equal to the component of the gravitational force parallel to the plane, which is g * sin(theta).

For example, if the angle of inclination, theta, is 30 degrees, the linear acceleration of the sphere at the bottom of the inclined plane would be:

a = g * sin(30) = 9.8 m/s^2 * 0.5 = 4.9 m/s^2

So, the linear acceleration of the sphere as it reaches the bottom of the inclined plane would be 4.9 m/s^2 when the angle of inclination is 30 degrees.

Explanation:

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