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
12345 [234]
3 years ago
11

Anyone know these questions?

Physics
1 answer:
salantis [7]3 years ago
7 0
400m in 32sec: (400/32)>12.5meters per second>
(12.5)(60)(60)(1/1000)=45km per hour
Constant speed would mean that the two forces are equivalent
You might be interested in
A yellow and green car traveled 400 miles to Dayton, OH. The green car made the trip in 10 hours. The yellow arrived in 8 hours.
elixir [45]

Answer: C)The yellow car was faster. Yellow traveled at a speed of 50 mph while green was traveling at an average of 40 mph.

Explanation:

The speed of each car is defined as:

v=\frac{d}{t}

where d is the distance traveled by the car and t is the time taken.

For the yellow car, d=400 mi and t=8 h, so its speed is

v=\frac{400 mi}{8 h}=50 mph

For the green car, d=400 mi and t=10 h, so its speed is

v=\frac{400 mi}{10 h}=40 mph

So, the correct choice is

C)The yellow car was faster. Yellow traveled at a speed of 50 mph while green was traveling at an average of 40 mph.

4 0
3 years ago
Read 2 more answers
In what ways can students use time management? Check all that apply.
Korvikt [17]

Answer: the answer is A, C, E

Explanation:

Time management is apart of your study schedule so you will need to determine when to study, same goes with how to use ur study time, lastly it helps create ur study schedule to help find out what time you are free to study. :)

7 0
3 years ago
Can someone please help me im stuckkk
WINSTONCH [101]

A male having the disease.

3 0
3 years ago
Read 2 more answers
A team of engineers is working with a wind turbine. The team is working with a model and testing different angles for the blade
Zinaida [17]

Answer:

i think it would be which angle converts the most potential energy to into kinetic energy of the turbine

Explanation: because the windmill makes kinetic energy and converts it into mechanical power. then a generator takes the mechanical power and makes it into electricity

7 0
3 years ago
Read 2 more answers
Suppose the glass paperweight has index of refraction n=1.38. a) find the value of θ for which the reflection on the vertical su
zimovet [89]

Answer:

a)θ=71.89°

b)NO

Explanation:

Given that

For glass n= 1.38

We know that for air n'=1

The angle  for total internal reflection θc given as

sin θc=n'/n

By putting the values

sin θc=n'/n

sin θc=1/1.38

θc=46.43°

n'sinθ = n sinθref

sinθref = cosθc

n'sinθ =  n cosθc

1 x sinθ =1.38 x cos 46.43°

θ=71.89°

b)

NO

8 0
3 years ago
Other questions:
  • In 6 days, the temperature dropped 18 degrees. How many degrees per day did the temperature drop?
    10·1 answer
  • What type of galaxy has mostly old stars, without a lot of star formation?
    13·2 answers
  • Which of the following statements about atoms is true?
    10·1 answer
  • A basketball player jumps straight up for a ball. To do this, he lowers his body 0.260 m and then accelerates through this dista
    6·1 answer
  • A bowling ball has an initial momentum of +30 kg m/s and hits a stationary bowling pin. After the collision, the bowling ball le
    13·1 answer
  • A boat crosses a river of width 229 m in which the current has a uniform speed of 0.756 m/s. The pilot maintains a bearing (i.e.
    7·1 answer
  • Question 6 of 10
    13·1 answer
  • Please help me!!!!<br> Describe the roles these organisms play in their ecosystem.
    9·1 answer
  • What does it mean when the orbital eccentricity of a planet is close to 1?
    12·2 answers
  • Eva makes a graphic organizer to compare electromagnets with solenoids. A venn diagram with 2 intersecting circles. The circle o
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!