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
netineya [11]
3 years ago
8

Joaquin mows the lawn at his grandmother’s home during the summer months. Joaquin measured the

Physics
1 answer:
nordsb [41]3 years ago
7 0
Velocity is define as how fast an object is moving, and in what direction, it is a vector quantity, meaning velocity has both magnitude and direction. Anything goes to the left is negative, and anything goes to the right is positive.

a. Direction from east to west, given distance 11.5 meters, and time of 7.10 s

V = displacement/time  V = -11.5/7.10 S  V = -1.62 m/s  (going left)

b. Joaquin reaches his original position. Displacement is now zero.

    Velocity of the lawnmower is equal to "zero" but if we calculate for the average speed of the lawn, you just have to add the distance covered and the time it take to go back at the original position or point of origin
You might be interested in
A wind turbine takes in energy from wind with the goal of converting it into electrical energy. Much of the wind energy is also
Shalnov [3]
German physicist  Albert Betz  (in 1919) demonstrated  that the highest efficiency you can achieve with a wind turbine is around 59%

We would have to analyze the design of an specific turbine to determine its efficiency, however it is unlikely to achieve 50% , as todays turbines have an average efficiency in the 20-35%

The answer would be around 25%

6 0
3 years ago
Read 2 more answers
Reply quick pls
Sholpan [36]
The ball was moving for 0.8seconds
This is because 4/5 x 1 = 0.8

Hope this helps and good luckkkk :)
4 0
3 years ago
To do work, this truck uses energy stored in chemical
GREYUIT [131]

800 J Got it right on edgenuity

4 0
3 years ago
A professional golfer hits a golf ball of mass 46 g with her 5-iron, and the ball first strikes the ground 155 m away. The ball
RideAnS [48]

Answer:

C=2.32\times 10^{-4}\ Ns^2/m^2

Explanation:

It is given that,

Mass of the golf ball, m = 46 g = 0.046 kg

Terminal speed of the ball, v = 44 m/s

The drag force, F_r=Cv^2

Where, C is the drag coefficient. At terminal speed, the weight of the ball is balanced by the drag force.

Cv^2=mg

C=\dfrac{mg}{v^2}

C=\dfrac{0.046\times 9.8}{(44)^2}

C=2.32\times 10^{-4}\ Ns^2/m^2

Hence, this is the required solution.

4 0
3 years ago
Describe the friction of smooth surfaces
cluponka [151]

When two surfaces slide against each other, a force called friction makes them stick very slightly together. Smooth surfaces, like ice and glass, are easy to slide over. They create very little friction. Rough surfaces like rock and sand create much more friction, and are easy to grip on to.

hope it helps...!!!

7 0
2 years ago
Other questions:
  • Ozone is a molecule in the upper atmosphere that is made up of three atoms of _____.
    5·2 answers
  • At a camp site there are tents of 2 shades. 1 made with black fabric and the other with white fabric. Which one will you prefer
    8·1 answer
  • Sonar is the detection of sound waves reflected off boundaries in water. a region of warm water in a cold lake can produce a ref
    9·2 answers
  • The sun emits energy by converting hydrogen into helium. what is this process called?
    6·1 answer
  • 1) ________ is a force that you can fell with your feet
    13·1 answer
  • Describe how the formation of a fault can result in an earthquake
    11·1 answer
  • Write some harms of friction.
    9·2 answers
  • Which of the following describes a heat sink?
    14·1 answer
  • Hi am struggling with specific latent heat questions:
    13·1 answer
  • 1. The magnitude of the electrostatic force a charge particle exerts on a 5.0nC particle 0.20m away from it is 18N. Find the mag
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!