In one sentence, describe what the following article is about: Once the engine starts, the alternator produces the electrical charge it needs to keep running. Press the clutch back to the floor with your left foot so you stop accelerating. With your foot on the clutch, the engine's RPMs (Revolutions Per Minute) will drop down to an idle. The alternator will recharge the battery and keep the engine running. Keep your foot pressed firmly on the clutch as you push the gear selector forward into the neutral position. This takes the car out of gear. Then use your right foot to apply the brakes and bring the car to a stop. You can take your left foot off of the clutch once the car is in neutral. Do not shut off the car once you stop. It will take the alternator a while to recharge the battery sufficiently, so leave the engine running once you stop. If the lights were on but the starter was just sluggish, 15 minutes will probably do. However, if the battery was too dead even to turn the lights on, 30 minutes to an hour might be more appropriate. You can drive the vehicle around while it recharges the battery. If you shut the engine off before the battery is charged enough to start it again, you'll have to start over.
Summary: Press the clutch back down after the engine starts. Put the car in neutral and step on the brakes. Let the car run for at least 15 minutes to charge.

In one sentence, describe what the following article is about: . Make sure your back is straight and your feet are shoulder length apart. Complete knuckle pushups on a soft surface like carpet, a workout mat, or even grass. Over time, once these surfaces feel comfortable and are not challenging anymore, you can do knuckle pushups on a hard floor or concrete.
Summary: Get in a standard pushup position

In one sentence, describe what the following article is about: To calculate the normal force of an object at an angle, you need to use the formula: N = m * g * cos(x) For this equation, N refers to the normal force, m refers to the object's mass, g refers to the acceleration of gravity, and x refers to the angle of incline. Example: Find the normal force of a block with a mass of 4.2 kg, sitting on a ramp with an incline of 45 degrees. The cosign of an angle equals the sine of the complementary angle, or the adjacent side divided by the hypotenuse of the triangle formed by the incline. This value is often determined by a calculator, since the cosine of any angle is constant to that angle, but you can compute it manually, as well. Example: cos (45) = 0.71 The weight of an object equals the mass of the object multiplied by the acceleration of gravity. Note that the gravitational acceleration at the Earth's surface is a constant: g = 9.8 m/s2 Example: weight = m * g = 4.2 * 9.8 = 41.16 In order to find the normal force, you need to multiply the weight of the object by the cosine of the angle of incline. Example: N = m * g * cos(x) = 41.16 * 0.71 = 29.1 The previous step should complete the problem and give you your answer. Note that for an object sitting on an incline, the normal force should be less than the weight of the object. Example: The normal force is 29.1 N.
Summary:
Use the right equation. Find the cosine of the angle. Find the object's weight. Multiply the two values together. Write your answer.