4. A helicopter is flying at a height of 1.5km. If it has 50MJ of G. P. E., what is the mass of the

helicopter?

Which of the following is not a possible effect of a force? a. Increasing the inertia of an object. b. Causing a stationary object to begin to move. c. Changing the direction of an object in motion. d.

What is the amount of a certain isotope that occurs in a natural sample of an element? Question 12 options: percent atomic weight percent abundance average atomic mass ion abundance

A model rocket is fired vertically from rest. It has a constant acceleration of 16.4 m/s2 for the first 1.50 s. Then its fuel is exhausted, and it is in free fall. The rocket has a mass of 78.2 g; the mass of the fuel is much less than 78.2 g.

Imagine you see a rainbow. What caused the rainbow?

The visible light portion of the electromagnetic spectrum is often subdivided into the colors of red, orange, yellow, green, blue, indigo, and violet (sometimes referred to as ROY G BIV).

A rectangular loop of wire with sides 0.262 and 0.401 m lies in a plane perpendicular to a constant magnetic field (see part a of the drawing). The magnetic field has a magnitude of 0.

In the system you're inspecting the damper motor isn't working, You decide to see if the damper-postion sensor us sending the proper signal to the which then signals the damper motor. A. heating coil B. duckwork c. energy source D. controller

Which of the following statements does not describe the structure of an atom? a. An atom has a small, dense center called the nucleus. b. Inside the nucleus of an atom are protons and electrons. c. Protons are positively charged sub-atomic particles.

A. Which skill related fitness component is your strongest and weakest?

A 100 N box is placed on an inclined plane that makes a 30° angle with the horizontal. Calculate the component of gravitational force that acts down the inclined plane. A. 25 N B. 50 N C. 87 N D. 100 N