A 60-kg woman stands on the very end of a uniform board, which is supported one-quarter of the way from one end and is balanced. What is the mass of the board?

a. 60 kg

b. 30 kg

c. 20 kg

d. 15 kg

e. 120 kg

How long (distance and time) would it take a vehicle to accelerate from a stop to 203 mph with an average acceleration of 2.93ft/s²

Which of these is the best way to measure a force? A) using a force meter B) using a ruler C) using a thermometer

A straight, stiff, horizontal wire of length 46 cm and mass 20 g is connected to a source of emf by light, flexible leads. A magnetic field of 1.33 T is horizontal and perpendicular to the wire.

Which of the following is an example of rotation A. The moon titan orbiting the planet saturn B. A cyclist riding around a circular track C. The planet saturn orbiting the sun D. Earth spinning on its axis

An object wants to maintain its state of motion because it has mass

Which statement is true about planets with longer orbits in the solar system? A. They have longer periods of revolution. B. They are smaller in size. C. They have less distance to travel for one revolution. D. They have longer seasons

Atmospheric conditions near a mountain range are such that a cloud at an altitude of 2.00 km contains 3.20 ✕ 10^7 kg of water vapor. How long (in years) would it take for a 2.

In addition to the conditions required for any solar eclipse, what must also be true in order for you to observe a total solar eclipse?

Protons and neutrons strongly attract when they

How far is Jupiter from the sun?