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
sergejj [24]
2 years ago
5

A rectangle has a length of (2.5 ± 0.2) m and a width of (1.5 ± 0.2) m. Calculate the area and the perimeter of the rectangle, a

nd give the uncertainty in each value.
(a)Calculate the area and give its uncertainty. (Enter your answers in m2.)

(b)Calculate the perimeter of the rectangle and give its uncertainty. (Enter your answers in m.)
Physics
1 answer:
eduard2 years ago
5 0
You can just add the uncertainties
You might be interested in
The basis for defining the length of a day is the fact that question 21 options:
abruzzese [7]
B.earth rotates on its axis in 24 hours; i.e., it rotates 15° of longitude per hour.
6 0
3 years ago
How many neutrons are contained in 2 kg? Mass of one neutron is 1.67x10-27 kg.
liraira [26]

Answer:

1.2 × 10^27 neutrons

Explanation:

If one neutron = 1.67 × 10^-27 kg

then in 2kg...the number of neutrons

; 2 ÷ 1.67 × 10^-27

There are.... 1.2 × 10^27 neutrons

4 0
2 years ago
Formulating a Hypothesis: Part I Since the investigative question has two variables, you need to focus on each one separately. T
Westkost [7]

Answer : The kinetic energy depends directly on the mass of a particle.

Explanation :

We know that the kinetic energy of any particle is given by :

KE=\dfrac{1}{2}mv^2

Where,

m is the mass of an object.

v is the velocity with which it is moving

Kinetic energy is due to the motion of the particle.

So, the kinetic energy of a particle is directly proportional to its mass.

Hence, the conclusion of the question is if the mass of a particle is increases then its kinetic energy also increase.

3 0
3 years ago
Read 2 more answers
An objects motion changes
NARA [144]

Answer:

uh finish the question please lol.

3 0
2 years ago
How much wood could a wood chuck chuck if a wood chuck could chuck wood
krek1111 [17]

Answer:

As much wood as a woodchuck could chuck, If a woodchuck could chuck wood.

Explanation:

3 0
2 years ago
Other questions:
  • The ATP synthase complex allows ATP production by A. proton-driven rotation of the Fo subunit, which causes F1 to change conform
    10·1 answer
  • For this exercise, use the position function s(t) = −4.9t2 + 250, which gives the height (in meters) of an object that has falle
    10·1 answer
  • A 90kg man is standing still on frictionless ice. His friend tosses him a 10kg ball, which has a horizontal velocity of 20m/s. A
    5·2 answers
  • A 200-mm lever and a 240-mm-diameter pulley are welded to the axle BE that is supported by bearings at C and D. A 860-N vertical
    11·1 answer
  • c) What is moment of inertia? How is it defined (write an equation, explaining all the terms)? What is the parallel axis princip
    9·1 answer
  • Which of the following does not contribute to the potential energy of an object?
    6·1 answer
  • A marble is thrown horizontally with a speed of 15.0 m/s from the top of a building. When it strikes the ground, the marble has
    12·2 answers
  • What is the brains job and heart job
    11·2 answers
  • . A 6 ohm resistor is connected to a 15 volt battery.
    11·1 answer
  • What is the function of a diaphragm in a camera?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!