1,302 Answered Questions for the topic physical science

Physical Science Science Chemistry Physics

06/10/22

What is the difference in voltage between the plates? Science

Two large parallel plates are 2.0 cm apart. The strength of the electric field between them is 100.0 N/C . What is the difference in voltage between the plates?(a) −2.0 V(b) +2.0 V(c) 0 V(d) +20 VI... more
Physical Science

05/20/22

which type of wave interaction is shown in the photo

Physical Science Science Physics

05/03/22

Explain for each of the following cases, whether or not you are likely to be able to see your own reflection in a window

Window glass may be better at transmitting light than reflecting it, but there are certain circumstances where it is very clear that some light is reflected. Explain for each of the following... more
Physical Science Science Physics

05/03/22

A buoy floating on a lake is seen to rise and fall 20 times in a minute. What is the frequency with which the buoy oscillates?

A buoy floating on a lake is seen to rise and fall 20 times in a minute. What is the frequency with which the buoy oscillates?What is the period of motion?If water waves on the lake are traveling... more
Physical Science Science Physics

05/03/22

How much time would it take for a ray of light to travel between the two hills?

Galileo tried to measure the speed of light by having two people stand on hills about 5km apart. Eachwould hold a shuttered lantern. The first would open his lantern and when the second saw the... more
Physical Science

04/25/22

Nitric Acid Byproducts

What are the byproducts of Nitric Acid in its production and how do you find them?
Physical Science Science Statistics Psychology

04/24/22

Please help me write the result of correlation coefficient of the research paper

https://drive.google.com/file/d/1_cs2AStcvpu4ZQaF9KramI4G45Qv3tr2/view?usp=sharing
Physical Science

04/22/22

Nitric Acid Byproducts

What are the byproducts of Nitric Acid and how do you find them?
Physical Science

04/22/22

Situation Analysis

let's say you want to make cookies instead of best ever brownies to bring in to class on your birthday. Your recipe calls for 2 eggs and 2.5 cups of flour per batch. In your kitchen, you have loads... more
Physical Science

04/20/22

a car travels 100 km in 4 hours. what is the speed in km/hr?

Physical Science

04/14/22

Calculate Absolute Zero (0K) in Fahrenheit?

All this question is looking for is the calculation of absolute zero in Fahrenheit
Physical Science Math Science Physics

04/13/22

State an approx. amount of chemical energy “used” by your body, in one day. Your answer should be based on a recommended dietary energy input using units relevant for biological (dietary) energy.

Calculate your average power rating in horsepower and Watts*. This should be based on the energy assumed above.When running at about 10 mi/hr, an athletic human body consumes energy at a rate of... more
Physical Science Physics

04/13/22

A sample of frozen water requires 3.6kcal to be heated from −35◦C to 0◦C. What must the mass be?

How much energy will it take to completely melt the sample above? Don’t account for the 3.6kcal above that brought the sample up to the melting point. Express your answer in calories (or kcal).
Physical Science

04/12/22

ive tried to find the answer but everywhere i look i get none of these answers

A 20 kg box is accelerating at 10 m/s? What is the force exerted on the box? a) 100 N b) 2N c) 50 N d) 200 N 
Physical Science Physics

03/30/22

Pitch Problems Help! (Frequencies and Sound)

Two trumpet players are riding in separate convertibles which are moving in opposite directions at a speed of 30.0 m/sec. They both strike a note with a frequency of 1024 Hz. Calculate:A.) The... more
Physical Science

03/29/22

which event in a solar cell uses the photoelectric effect?

Physical Science Physics

03/29/22

Sound and Frequency Help!

1. A military jet is dying at an altitude of 12,000 meters and a speed of 600 m/sec. If the air temperature is exactly 0°C, calculate:a) How far behind the jet its sound wave beginsb) How long the... more
Physical Science

03/28/22

Physical science

C4H10 + 13O2 ➡️ CO2 + 10H2OHow many grams of CO2 is produced when 10 g C4H10 undergoes combustion with 200 CO2? a.) What is the limiting reactant?b.) What is the excess reactant?c.) How many grams... more
Physical Science

03/15/22

PHYSICAL SCIENCE (NEED HELP)

20 grams of nitrogen reacted with 2.5 moles of hydrogen to form ammonia (NH3) gas. What is the number of moles of nitrogen. N2+   3 H2  -------- >   2NH3Answer should be rounded to 2 decimal... more
Physical Science Chemistry Organic Chemistry

03/13/22

Born-Haber cycle exercise

Calculate the lattice energy of CuBr(s) using a Born-Haber cycle. Enthalpy of sublimation of Cu(s) = 337.7 kJ/mol 1^st ionization energy of Cu(g) = 745 kJ/mol Enthalpy of vaporization of Br_2 (l) =... more
Physical Science

03/11/22

Which feature best distinguishes one form of electromagnetic energy from another?

Physical Science

03/10/22

Types of Bonds.

Atom A has an oxidation number of +2 and Atom B has an oxidation number of -2. What will be the total charge of the compound formed?

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.