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
givi [52]
3 years ago
5

A skateboarder starts at 2.75 m/s and accelerates for 8.90 s over a distance of 16.7

Physics
1 answer:
Andrei [34K]3 years ago
3 0

Answer:

1.00 m/s

Explanation:

Given:

Δx = 16.7 m

v₀ = 2.75 m/s

t = 8.90 s

Find: v

Δx = ½ (v + v₀) t

16.7 m = ½ (v + 2.75 m/s) (8.90 s)

v = 1.00 m/s

You might be interested in
Please answer this. Science 7th grade.
nikdorinn [45]

Answer:

the answer would be 2

Explanation:

it would be 2 because if u look at the diagram the darkest arrow is pointsin towards earth and the moon and when the moon is infront of the sun it cause's an eclispe

6 0
3 years ago
What is tan(16°)?<br><br> A. 0.96<br> B.0.16<br> C.0.39<br> D.0.29
Alex Ar [27]

Answer:

D. 0.29

Explanation:

5 0
3 years ago
At what angle should the axes of two Polaroids be placed so as to reduce the intensity of the incident unpolarized light to 1515
Talja [164]

Complete  Question

At what angle should the axes of two Polaroids be placed so as to reduce the intensity of the incident unpolarized light to 1/5.

Answer:

The  angle is  

Explanation:

From the question we are told that

   The light emerging from second Polaroid is 1/5 the  unpolarized

Generally the intensity of light emerging from the first Polaroid is mathematically represented as

             I_1 = \frac{I_o}{ 2 }

Generally from the Malus law the intensity of light emerging from the second Polaroid  is mathematically represented

      I_2  =  I_1 cos^2 (\theta )

=>   cos^2 (\theta ) =  \frac{I_2}{I_1 }

=>   cos (\theta) =  \sqrt{ \frac{I_2}{I_1} }

From the question I_2  =  \frac{I_o}{5}

     cos (\theta) =  \sqrt{ \frac{ \frac{ I_o}{5} }{\frac{I_o}{2} } }

     cos (\theta) =  \sqrt{ \frac{2}{5} }

=>    \theta =   cos ^{-1} [\sqrt{\frac{2}{5}}  ]

=>    \theta  =  50.77^o

8 0
3 years ago
Which of the following describes glass?​
kenny6666 [7]

Answer:

is there any choice? in this question?

8 0
3 years ago
A researcher is trying to identify whether household substances are basic. Which approach would BEST help the researcher
Scrat [10]

Answer:

a

Explanation:

because red litmus paper turn blues under base or alkaline condition

8 0
3 years ago
Other questions:
  • the figure below represents a wooden block whose dimensions are 2m by 0.2m by 0.2m.calculate the volume of the block and the mas
    5·1 answer
  • How do base-isolators, the rubber and steel pads under some buildings, reduce earthquake damage?
    8·2 answers
  • The decomposition of dinitrogen tetraoxide into nitrogen gas and oxygen gas is shown by which balanced chemical equation?
    15·1 answer
  • Definition of the following word <br>Work ,measurement​
    15·2 answers
  • Kinetic energy is based on position.
    13·1 answer
  • Which of the following are places that you can work out
    9·2 answers
  • What happens to ar object in free fall?​
    9·1 answer
  • A box measures 4 m x 3 m x 2 m would it be easier to push the box if it were resting on a 3 m x 2 m side or on the 4 m x 3 m sid
    8·1 answer
  • The gravitational field strength on earth is 10n/kg. find the weight of an object of mass 25kg​
    9·2 answers
  • A camel is living in an oasis(origin), but wants to travel to a new oasis. To do this the camel travels 3,000 meters east, and t
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!