1,016 Answered Questions for the topic physical science

Physical Science

3d

How many electrons make up 1.50 coulomb of charge? (Hint: q = ne.) electrons

Physical Science

7d

During a thunderstorm, 5.9 s elapses between observing a lightning flash and hearing the resulting thunder.

Approximately how far away in kilometers and miles was the lightning flash? (Assume the speed of sound is 344 m/s.) km mi
Physical Science

7d

What is the weight in newtons of a 202 g package of breakfast cereal? N

Physical Science

8d

How much work is required to lift a 2.9-kg concrete block to a height of 2.0 m? J

Another QuestionA person running a fever has a temperature of 38.6°C. What is this temperature on the Fahrenheit scale? °F
Physical Science

8d

A constant net force of 1325 N gives a toy rocket an acceleration of 2.8 m/s2. What is the mass of the rocket? kg

Another question What is the weight in newtons of a 202 g package of breakfast cereal? N
Physical Science

18d

A microwave oven has a power requirement of 1,245 W. A frozen dinner requires 4.8 min to heat on full power. (a) How much electrical energy (in kWh) is used? kWh

This is the second part of the question. (b) If the cost of electricity is 10¢ per kWh, how much does it cost to heat the dinner? (Do not round your final answer. Fractional cent values are... more
Physical Science

21d

What is the velocity of a quarter dropped from a tower after 10 seconds?

use the formula Vf - Vl divided by fShow your work
Physical Science

28d

What is the period of a wave that has a frequency of 300 Hz

Physical Science

29d

Does 40kg mass and 40N weight have the same mass?

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