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
anyanavicka [17]
3 years ago
5

You are on a boat cruising at 10 m/s when you decide to accelerate at 5 m/s^2 until you reach a speed of 30 m/s.

Physics
1 answer:
Anika [276]3 years ago
4 0

Answer:

Avg time (s) * Avg velocity (m/s) = Answer (m)

You might be interested in
PLEASE SOMEONE ANSWER!!! thank you so so so much!!!!
Oduvanchick [21]

Answer:

As much I know the gravity on moon is 1.62m/s२.

7 0
3 years ago
What occurs when light changes direction after colliding with particles of matter
Slav-nsk [51]
Scattering occurs when light changes direction after colliding with particles of matter.
7 0
3 years ago
An investigator collects a sample of a radioactive isotope with an activity of 490,000 Bq.48 hours later, the activity is 110,00
Daniel [21]

Answer:

The correct answer is "22.27 hours".

Explanation:

Given that:

Radioactive isotope activity,

= 490,000 Bq

Activity,

= 110,000 Bq

Time,

= 48 hours

As we know,

⇒ A = A_0 e^{- \lambda t}

or,

⇒ \frac{A}{A_0}=e^{-\lambda t}

By taking "ln", we get

⇒ ln \frac{A}{A_0}=- \lambda t

By substituting the values, we get

⇒ -ln \frac{110000}{490000} = -48 \lambda

⇒    -1.4939=-48 \lambda

                 \lambda = 0.031122

As,

⇒ \lambda = \frac{ln_2}{\frac{T}{2} }

then,

⇒ \frac{ln_2}{T_ \frac{1}{2} } =0.031122

⇒ T_\frac{1}{2}=\frac{ln_2}{0.031122}

         =22.27 \ hours  

3 0
3 years ago
Two students 8 meters apart are holding a stretched, coiled spring between them. One student sends a pulse down the string, and
IgorC [24]

Answer:

Explanation:

Distance travelled by wave = 8 x 2 = 16 m

Time taken = 4 s

velocity of pulse wave = distance / time

= 16 m / 4 s

= 4 m/s

8 0
3 years ago
A ball dropped from a bridge takes 3.0 seconds to reach the water below. How far is the bridge from the water?
Komok [63]
Since it is dropped, initial velocity u = 0

Using s = ut + (1/2)gt^2,        putting u = 0,  g = 10 m/s^2

s =(1/2)gt^2,                  t = 3s

s = 0.5 * 10 * 3 *3

s = 45 m.

The bridge is 45m above the water.
8 0
3 years ago
Other questions:
  • Which phrases describe all the outer planets’ motion? Check all that apply.
    7·2 answers
  • Which of these experiments would make use of quantitative data
    12·2 answers
  • How do we know that white light is composed of a rainbow of colors?
    5·1 answer
  • The potential difference across a variable resistor is 11V and the current flowing through it is 0.4A.
    12·2 answers
  • James Bond is trying to escape his enemy on a speedboat but
    7·1 answer
  • The atmosphere is held together by
    14·1 answer
  • What is the acceleration of a 1000 kg car subject to a 550 N net force
    10·1 answer
  • A force of 100 N is used to move a chair 2 m. How much work is done<br>​
    5·1 answer
  • What if the Earth was moved out to Jupiter's orbit which is about 5
    6·1 answer
  • A small dog walks 12 meters east and then 5 meters north. How many meters is the dog from her starting position?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!