which of the following is not necessary in a great summary? your investigayltion, your predicatio, excuses, possible errors?

Do moving downhill in a roller coaster have potential energy or kinetic energy

What is the formula for finding relative density of a liquid

How many miles can you get on one tank of gas if yout tank holds 18 gallons and you get 22miles per gallon

A well-insulated electric water heater warms 131 kg of water from 20.0°C to 51.0°C in 31.0 min. Find the resistance (in Ω) of its heating element, which is connected across a 240 V potential difference. 6.34 Correct: Your answer is correct.

What are the three things a chloroplast needs in order to complete photosynthesis?

During a demonstration of the gravitational force on falling objects to her class, Sarah drops an 11 lb. bowling ball from the top of the science building. Determine distance the ball has traveled after falling for 1.

A teacher wants to demonstrate that unheated water can boil at room temperature in a beaker within a bell jar connected to a vac-uum pump. However, the vacuum pump is faulty and can reduce pressures only to 15 kPa.

How many btus of heat energy are needed to raise the temperature of 99.6 lbs of water from 50 °f to 130 °f?

What is a different form of a characteristic, such as brown hair, is called

A book falls of the table and hits the floor. Is work done? Why?