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
ExtremeBDS [4]
2 years ago
11

A motorcycle has a constant acceleration of 2.5 meters per second squared

Physics
1 answer:
pshichka [43]2 years ago
7 0

Answer:

given \\ accelaration (a)= 2.5 \frac{m}{ {s}^{2} }  \\ initial \: velocity(u) = 21 \frac{m}{s}  \\ final \: velocity(v) = 31 \frac{m}{s}  \\ we \: want \: find \: time \\ newtons \: equation \: of \: motion \: v = u + at \\ 31 = 21 + 2.5 \times t \\ 31 - 21 = 2.5t \\ 10 = 2.5t \\  \frac{10}{2.5}  = t \\ t = 4sec

You might be interested in
Can you label the parts of the eye?
photoshop1234 [79]

Answer:

  1. Iris
  2. Pupil
  3. Corona
  4. Anterior chamber
  5. lens
  6. Vitreous humor
  7. Blood vessels
  8. Optic nerve
  9. Hyaloid canal
  10. Retina

Hope it helps :)

7 0
3 years ago
Describe the interaction with the sun and producers
bagirrra123 [75]

Answer: the sun's rays is one of the raw Materials recquired by plants to make food

Explanation:plants trap light used in splitting water into hydrogen ions and oxygen molecules

4 0
3 years ago
a rectangular block weighs 240N. The area of the block in contact with the floor is 20cm2 calculate the pressure on the floor
Romashka [77]

Answer:

The pressure on the floor is 12 Pascal(Pa).

Explanation:

Given,

Force (F) = 240N

Area (A) = 20 cm^2

Pressure (P) = ?

we know that,

P = F/A

= 240/ 20

= 12 Pa

8 0
3 years ago
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, ???? 0 ν0 . Find the mi
Allisa [31]

Answer:

<h2>E = 2.8028*10⁻¹⁹ Joules</h2>

Explanation:

The minimum energy needed to eject electrons from a metal with a threshold frequency fo is expressed as E = hfo

h = planck's constant

fo = threshold frequency

Given the threshold frequency fo = 4.23×10¹⁴ s⁻¹

h = 6.626× 10⁻³⁴ m² kg / s

Substituting this value into the formula to get the energy E

E = 4.23×10¹⁴ *  6.626 × 10⁻³⁴

E = 28.028*10¹⁴⁻³⁴

E = 28.028*10⁻²⁰

E = 2.8028*10⁻¹⁹ Joules

7 0
3 years ago
How much heat is absorbed by 60g of copper when it is heated from 20°C to 80°C
nexus9112 [7]

Answer:

I HOPE THIS IS CORRECT

Explanation:

It is heated from 20°C to 80°C. We need to find the heat absorbed. It can be given by the formula as follows : So, 1386 J of heat is absorbed.

7 0
3 years ago
Other questions:
  • Two loudspeakers are placed on a wall 2 m apart. A listener stands directly in front of one of the speakers, 81.7 m from the wal
    6·1 answer
  • How many chirps will a snowy tree cricket give is 21 seconds at a temperature of 22 degree celcius
    6·1 answer
  • What in th max age of a dog
    8·1 answer
  • List some limiting factors that might limit the size of a population within its environment
    13·1 answer
  • Xplain the difference between aerobic and anaerobic exercise and give 1 example of each?
    14·2 answers
  • The cheetah can run a distance of 275 m for 9 seconds. Calculate its speed.
    14·1 answer
  • An audience of 2250 fills a concert hall of volume 32000 m^3. If there were no ventilation, by how much would the temperature of
    15·1 answer
  • What is the net force​
    13·1 answer
  • You are traveling at 16m/s for 18 seconds. What is your displacement?
    6·1 answer
  • Which of the following statements explains one way that oceans influence the temperature of the tropics and poles?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!