From the list below, select the practice considered unsafe. (2 points) Group of answer choices

Determine your ability level by trying an advanced skill.

Do a thorough warm-up prior to starting your dance session.

Know your limitations prior to trying a new dance skill.

Use a spotter when attempting a new gymnastic skill for the first time.

Aspecial electronic sensor is embedded in the seat of a car that takes riders around a circular loop-the-loop ride at an amusement park. the sensor measures the magnitude of the normal force that the seat exerts on a rider. the loop-the-loop ride is in the vertical plane and its radius is 23 m. sitting on the seat before the ride starts, a rider is level and stationary, and the electronic sensor reads 740 n. at the top of the loop, the rider is upside down and moving, and the sensor reads 370 n. what is the speed of the rider at the top of the loop?

True or false graphs must include scales that increase by the same amount

If you wanted to move an electron from the positive to the negative terminal of the battery, how much work w would you need to do on the electron? enter your answer numerically in joules.