An electric car accelerates from rest to 30 m/s in 4.5 seconds. What is its acceleration?

Is a tidal wave a mechanical wave or an electromagnetic wave? And why?

When you mix two gases what can you predict about the conservation of volume in this case?

A refrigerator removes heat from the freezing compartment at the rate of20 kJ per cycle and ejects 24 kJ into the room each cycle. How much energy is used in each cycle?

Is a persons DNA likely to be more similar to the DNA of his biological parents or to the DNA of one of his first cousins

A blank is the factor that is deliberately change in an experiment

Lead-202 has a half-life of 53,000 years. How long will it take for 15/16 of a sample of lead-202 to decay? A) 106,000 years B) 159,000 years C) 212,000 years D) 265,000 years

A trained attack octopus can crawl at a velocity of 0.3m/s. If the octopus crawls towards its victim for 30 seconds, what is the change in position (or distance) that the octopus crawled?

Which profession is responsible for a planes design? A) Aerospace engineering B) Aerospace mechanic C) Pilot D) Flight attendant

Distracted driving laws have been put in place due to scientific studies that have shown the dangers associated with wireless technology. DDT. plastics. vaccines.

An electric circuit consists of a variable resistor connected to a source of constant potential difference. If the resistance of the resistor is doubled, the current through the resistor is (1) halved (3) quartered (2) doubled (4) quadrupled