Which of the following is the best sign that cooking pancake batter causes a chemical change

A pendulum completes 30 cycles every minute. What is the frequency of the pendulum

A car is rounding a curve that is the arc of a circle with a radius of r. if the car has a constant speed of 10 m/s, and its acceleration is 5 m/s2, what is the radius of the curve?

In your own words, explain newtons law of universal gravitation

Can a vector be shorter than one of its components

1. a. identifying what are the two major motions of earth as it travels through space

Microwave ovens emit microwave energy with a wavelength of 12.3 cm. What is the energy of exactly one photon of this microwave radiation?

When light bounces off a surface, which component will be reflected more - the component that is parallel to the surface, or the component that is perpendicular to the surface, and why?

What is 18 degrees celsius in fahrenheit?

A small object moves along the x-axis with acceleration ax (t) = - (0.0320m/s3) (15.0s-t). At t = 0 the object is at x = - 14.0 m and has velocity v0x = 8.90 m/s. What is the x-coordinate of the object when t = 10.0 s?

Nitrogen and Hydrogen react to form ammonia (NH3). The reaction looks like this: Ammonia What is the ratio of nitrogen atoms to hydrogen atoms in ammonia? 1 to 2 1 to 3 2 to 1 3 to 1