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
tatyana61 [14]
4 years ago
13

Which of these can NOT be negative?

Physics
1 answer:
mixas84 [53]4 years ago
4 0

Any quantity that has a direction (a 'vector' quantity) is negative
whenever it happens to be opposite to the direction you call positive.

Acceleration, momentum, velocity, and displacement are all vectors.

The only choice that doesn't include anything with direction is 'C'.

You might be interested in
Select the correct answer.
Ilia_Sergeevich [38]
Pretty sure it is B.
Because inertia is a tendency to do nothing or remain unchanged.
8 0
3 years ago
What is it called the number that tells how much of something there is
Dvinal [7]
A cardinal númber is a number that says how many of something there are such a one , two , three , four , five
4 0
3 years ago
If a thermometer measured the temperature in an oven as 400oF five days in a row when the temperature was actually 397oF, this m
aleksandrvk [35]

Answer:

It can be said to be reliable although it is not valid

Explanation:

This is because Reliability means an indicator of consistency, A measure should produce similar or the same results consistently if it measures the same quantity. So does the thermometer measures over 5days but it is not valid because it deviates from the real value

5 0
3 years ago
a 0.0780 kg lemming runs off a 5.36 m high cliff at 4.84 m/s. what is its kinetic energy(KE) when it jumps PLEASE HELP ME
Kay [80]

Answer:

0.91 J

Explanation:

The kinetic energy of an object is given by

K=\frac{1}{2}mv^2

where

m is the mass of the object

v is its speed

For the lemming in this problem, when he jumps, we have:

m = 0.0780 kg is the mass

v = 4.84 m/s is the speed

Substituting into the equation, we find:

K=\frac{1}{2}(0.0780)(4.84)^2=0.91 J

8 0
3 years ago
What are the variables in Gay-Lussac's law?
velikii [3]
Pressure and temperature are the variables in Gay-Lussac's law.

The law states that a pressure of a gas is directly proportional to the gas' temperature if the mass and volume are fixed. This means that there are only two variables, as the other two values are fixed: only pressure and temperature can change according to this law.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Select the correct answer. A ball is thrown straight down from the top of a building at a velocity of 16 ft/s. The building is 4
    14·1 answer
  • the system that functions in the storage of minerals, such as calcium, is called the ____ system a. skeletal b.respiratory c. ca
    12·2 answers
  • Two blocks of mass m1 = 8.0 kg and m3 = 6.3 kg, connected by a rod of mass m2 = 1.8 kg, are sitting on a very low-friction surfa
    15·1 answer
  • The "opposite" of ionization energy is
    8·1 answer
  • A beam of unpolarized light in air strikes a flat piece of glass at an angle of incidence of 54.2 degrees. If the reflected beam
    14·2 answers
  • After the sun becomes a red giant star and makes carbon in its core __________
    7·1 answer
  • How many times farther is Proxima Centauri from the sun than is earth from the sun
    15·2 answers
  • Need help in the middle one
    12·1 answer
  • 1) The unit of power is
    5·1 answer
  • A 300 cm rope under a tension of 120 N is set into oscillation. The mass density of the rope is 120 g/cm. What is the frequency
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!