As the ambulance got closer, Marge noticed that the pitch of the siren got higher. This happened because

Why does lowering the centre of gravity increase stability?

When Xavier places his hands near a light bulb, he notices that certain areas around the light bulb are warmer than others. Which best explains this? The areas to the sides of the light bulb are warmest because of conduction.

A 1.2 m steel rod moves through a uniform magnetic field of 0.020 T at 30 m/s. What emfis induced between the two ends of the steel rod? 0.36 V 0.50 V 0.60 V 0.72 V

Carrying Capacity is ... ? Maximum individuals that a space can hold Least individuals that a space can hold Maximum number of different materials a space can hold Least number of materials a space can hold

Which conditions produce low pitches from a guitar string? a. short strings, more tension, thick strings b. long strings, less tension, thick strings c. short strings, less tension, thin strings d. long strings, more tension, thin strings

Convert 4,200 decigrams to grams

A beam of light is incident upon a flat piece of glass (n = 1.50) at an angle of incidence of 30.00. Part of the beam is transmitted and part is reflected. Determine the angle between the reflected and transmitted rays

A 29 foot ladder leans against a building so that the angle between the ground and the ladder is 75 ∘. How high does the ladder reach up the side of the building? Round to 2 decimal places.

What is a difference between an isotope and a ion

2. An airplane travels 335 miles in 45 minutes. How fast does it travel? How fast is that in km/hr?