1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
LekaFEV [45]
3 years ago
15

What are many scientific laws represented with?

Physics
1 answer:
salantis [7]3 years ago
3 0

hypothesises i think

You might be interested in
A scuba diver's tank contains 0.240 kg of o2 compressed into a volume of 3.10 l. what volume (in liters) would this oxygen occup
ohaa [14]
Given:
m = 0.240 kg = 240 g, the mass of O₂
V = 3.10 L = 3.10 x 10⁻³ m³, the volume

Because the molar mass of oxygen is 16, the number of moles of O₂ is
n = (240 g)/(2*16 g/mol) =  7.5 mol

As an ideal gas,
p*V = nRT
or
V = (nRT)/p
where R = 8.314 J/(mol-K)

When
p = 0.910 atm = (0.910 atm) * (101325Pa/atm) = 92205.75 Pa
T = 27 °C = (27 + 273) K = 300 K
then the volume is
V= \frac{(7.5 \, mol)*(8.314 \, J/(mol-K))*(300 \, K)}{(92205.75 \, Pa)} =0.2029 \, m^{3}

V = (0.2029 m³)*(10³ L/m³) = 202.9 L

Answer: 203 liters
3 0
3 years ago
Which of the following is not true about the Global Positioning Systems (GPS)?
Mrrafil [7]

Answer: Option (a) is the correct answer.

Explanation:

Global Positioning Systems (GPS) is a system which uses a network of satellites to construct maps. So, that it would be easy to trace location of a person, or to reach over a certain place.

It helps an individual by showing the route of destination wherever he/she wants to reach along with the total time to reach over the place.

Thus, GPS can determine the elevation of a given area and also it can determine latitude and longitude of a given area. As each GPS satellite broadcasts with a high power, narrow bandwidth, down link signal which can be received by our small hand held receiver antenna called mobile phone.

A GPS cannot determine the composition of soil on mountain ranges.

Thus, we can conclude that out of the given options, GPS can determine the composition of soil on mountain ranges is not true about the Global Positioning Systems (GPS).

7 0
3 years ago
Suppose the activity of a sample of radioactive material was 100Bq at the start. What would you divide 100Bq by to obtain the ac
myrzilka [38]
If n=1 you divide by 2
If n=2 you divide by 4
If n=3 you divide by 8
so any n you divide by 2 to the power n
4 0
3 years ago
If a ball speeds up as it is rolling down a hill, the forces acting on it must be -
VMariaS [17]

Answer:

the forces acting on it must be strong because gravity is pushing the ball down

Explanation:

3 0
2 years ago
An electric fan has the power output of 60W. How much work is done if the fan operates for 120s?
Digiron [165]
Since power = work done/time, 60= work done/120, work done = 120*60 = 7200. So,work done = 7200N (Newton). 
I'm not sure if you're supposed to convert the seconds to time.
4 0
3 years ago
Other questions:
  • Below is a list of characteristics for electric and magnetic fields. Put an "E" in front of the statement if it applies only to
    9·1 answer
  • What is the voltage in a circuit that has a current of 10.0 amps and a resistance of 28.5 ohms?
    5·2 answers
  • forces are caused by the interactions between tiny charged particles. A. Electric B. Nuclear C. Magnetic D. Gravitational
    6·2 answers
  • A velocity vs. time graph starts at 0 and ends at 10 m/s, stretching over a time- span of 15 s with constant acceleration. What
    14·1 answer
  • Which of the following describes a major role of gravity in star formation?
    12·2 answers
  • This is a strong, short-lived magnet created by a looped electrical current.
    15·1 answer
  • The positive muon (?+), an unstable particle, lives on average 2.20×10?6s (measured in its own frame of reference) before decayi
    15·1 answer
  • A disk, with a radius of 0.25 m, is to be rotated like a merry-go-round through 800 rad, starting from rest, gaining angular spe
    7·1 answer
  • Two male rabbits live in a habitat together. They both compete for mates and territory during the spring months. This is an exam
    14·2 answers
  • if 16,700 j of work is done to shoot the human cannonball down a 30.5m barrel,then how much force is applied to the person to fi
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!