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
WINSTONCH [101]
3 years ago
11

What is the answer to the question ?

Physics
1 answer:
nadya68 [22]3 years ago
5 0

0.11m/s

Explanation:

avg. velocity = total displacement/ total time

total displacement = 2.55 - 1.09

= 1.46

total time taken = 12.8s

avg velocity = 1.46/12.8

=0.11

You might be interested in
The level of mercury falls in a barometer<br>while taking it to a mountain.​
Alexxandr [17]

Answer:

This is due to a relative decrease in atmospheric pressure in high places.

Explanation:

Given that atmospheric pressure decreases at the higher point or ground, this reduced atmospheric pressure, however, will be unable to contain the Mercury in the barometer tube.

Therefore, at the top of the mountain where the air pressure is low, the barometer reading ultimately goes down.

Hence, the level of mercury falls in a barometer while taking it to a mountain "due to a relative decrease in atmospheric pressure in high places."

8 0
2 years ago
How many grams of CO2 are in 10 mol of the compound?
Zepler [3.9K]

For our problem, this means that one mole of CO2 has a mass of 44.01 grams. So 22 grams divided by 44.01 grams is roughly 0.5 moles of CO2.


hope it helps

4 0
3 years ago
Help when u can! I feel like it's C, but I just want to make sure before I submit the test.
Marat540 [252]

(D)

Explanation:

This kind of bond where the electrons are transferred is called ionic bond. This bond occurs between a metallic and non-metallic elements. The other kind of bond (covalent) involves the sharing of electrons and this happens between non-metallic elements.

4 0
2 years ago
Match the choices below to the correct description. Drag the terms on the left to the appropriate blanks on the right. ResetHelp
Andreas93 [3]

Answer: hello the terms are missing but I have provided the answer ( the terms and matched them properly

answer :

  • P WAVES
  • S WAVES
  • L WAVES
  • R WAVES

Explanation:

This body wave is a compressional wave  : P WAVES

This body wave is a shear wave :  S  WAVES

This surface wave moves from side to side : L WAVES

This surface wave moves up and down. : R WAVES

A body wave is a type of wave that passes through the interior of the earth and they are classified as ; P and S waves while surface waves are seismic waves that travel near the earth's surface

5 0
3 years ago
A car of mass 1600 kg traveling at 27.0 m/s is at the foot of a hill that rises vertically 135 m after travelling a distance of
Zarrin [17]

Answer:

Neglecting any frictional losses, the average power delivered by the car's engine is 10565 W

Explanation:

The energy conservation law indicates that the energy must be the same at the bottom of the hill and at the top of the hill.  

The energy at the bottom is only the Kinect energy (K_1) of the car in motion, but in the top, the energy is the sum of its Kinect energy (K_2), potential energy (P) and the work (W) done by the engine.

K_1 = K_2 + P + W

then, the work done by the engine is:

W = K_1 - K_2 - P

The formulas for the Kinetic and potential energy are:  

K=\frac{1}{2}mV^2\\P=mgh

where, m is the mass of the car, V the velocity, g the gravity and h is the elevation of the hill.

Using the formulas:

W=\frac{1}{2}mV_1^2-\frac{1}{2}mV_2^2-mgh

Replacing the values:

W=\frac{1}{2}(1600Kg)(27m/s)^2-\frac{1}{2}(1600Kg)(14m/s)^2-(1600Kg)(9.8m/s^2)(135m)\\W=-1690400 J

The negative of this value indicates the direction of the work done, but for the problem, you only care about the magnitude, so the power is W=1690400 J. Now, the power is equal to work/time so you need to find the time the car took to get to the top of the hill.

The average speed of the car is (27+14)/2=20m/s, and t=d/v so the time is:

t=\frac{3200m}{20m/s}=160s

the power delivered by the car's engine was:

power=\frac{work}{time}=\frac{1690400J}{160s}=10565W

8 0
3 years ago
Other questions:
  • The dimensions of the disk of our milky way galaxy are select one:
    8·1 answer
  • Which statement best explains the relationship between the wavelengths and the frequencies of all the waves in the electromagnet
    12·1 answer
  • As the mass of an object increases so does its gravitational force. <br> a. True <br> b. False
    15·1 answer
  • In which direction does a bag at rest move when a force of 20 newtons is applied from the right? A. in the direction of the appl
    5·2 answers
  • A 0.130 m radius, 485-turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having its plane perpendicular to a
    7·2 answers
  • You place an ice cube of mass 7.50×10−3kg and temperature 0.00∘C on top of a copper cube of mass 0.540 kg. All of the ice melts,
    9·1 answer
  • Please help!!!!<br> Will give brainlest
    14·2 answers
  • Two sounds, one at 440 Hz and the other at 444 Hz, occur at the same time. What beat
    9·1 answer
  • A person on a merry-go-round makes a complete revolution in about 3.17 s.
    11·1 answer
  • Some jovian planets give off more energy than they receive because of
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!