If the kinetic energy of a 10-kilogram object is 2000 Joules, its velocity is

-10 m/s

-20 m/s

-100 m/s

-400 m/s

Types of mechanical waves include transverse waves. longitudinal waves. surface waves. all of the above.

Two brothers are digging a drainage ditch for a french drain around their home. The ditch is to be 2 feet deep, 1 foot wide, and 40 feet long. The older brother can dig the ditch in 14 hours. The younger brother can dig the ditch in 17 hours.

How might an organism that relies on the environment to maintain body temperature do so?

Which of these is not a gas? O A. Oxygen O B. Gravity O c. Helium O D. Hydrogen

A uniform ladder of mass and length leans at an angle against a frictionless wall. If the coefficient of static friction between the ladder and the ground is, determine a formula for the minimum angle at which the ladder will not slip.

A 1.0 kg ball is thrown into the air with an initial velocity of 30 m/s. How much kinetic energy does the ball have?

Have scientists discovered a fifth fundamental force of nature?

To study the properties of various particles, you can accelerate the particles with electric flelds. A positron is a particle with the same mass as an electron but the opposite charge (+e). Express your answer in vector form.

A lawnmower engine running for 20 minutes does 4560000 j of work. What is the power output of the engine

Which of the following is a conductor for electricity? Question options: wood wool water rubber tire