if a 10 kg object has a kinetic energy of 20 J what is its speed and what is the formula used to calculate speed

a skydiver jumps out of a airplane traveling with a horizontal velocity of 394.3m/s she falls for 3.9 seconds before she opens her parachute how far has she traveled in the horizontal direction in this time

Which of the following elements is commonly found in the Earth's crust, living matter, oceans, and atmosphere? A. carbon B. argon C. bromine D. zinc

The multiple reflection of a single sound wave is a/an a. echo. b. reverberation. c. refraction. d. diffraction.

A block in the shape of a rectangular solid has a cross-sectional area of 4.00 cm2 across its width, a front-to-rear length of 13.1 cm, and a resistance of 1190 Ω. The block's material contains 6.35 * 1022 conduction electrons/m3.

2. Explain whether the size of an object's displacement could be greater than the distance the object travels.

Jack rolled a marble down a ramp and recorded the potential energy and kinetic energy of the marble at different positions on the ramp, as shown in the table.

Protons are the smallest particle of an element that retains the original Characteristics of the element. True or False

A 5kg rock and a 10kg rock are dropped from a height of 10m?

A train accelerates from a station with a = 1.841m/s? Upon reaching a speed of 23.52m/s the train travels at a constant velocity for a period.

A what is used to measure air pressure.