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
Bezzdna [24]
3 years ago
8

What is the velocity of an object after falling for 15 seconds, neglecting air resistance? (g=9.81)

Physics
1 answer:
irina [24]3 years ago
7 0

Answer:

(ans147.15m/s downward)

Explanation:

initial velocity (u)=0m/s

final velocity (v)=?

v=u+gt. ( t)time taken=15seconds

?=0+(9.81)×15

?=147.15m/s

hope this helped

You might be interested in
85POINTS ASAP!!!!!!!!!!!!!!
alexgriva [62]
The andwer of tye question is 3O2
6 0
3 years ago
Read 2 more answers
In a traveling or following spotlight in a musical theater production, the brilliant xenon lamp positioned
NNADVOKAT [17]
The answer is the letter a
3 0
3 years ago
A electric heater that draws 13.5 a of dc current has been left on for 10 min. how many electrons that have passed through the h
kicyunya [14]
By definition, Ampere is a unit of current which is a measure of the amount of charge passing through a point in a circuit per unit  of time, with an equivalent charge of 1.602 x 10^(-19) Coulomb per electron. To determine the number of electrons passing through the heater, we use the definition of the current. We calculate as follows:

13.5 A = 13.5 C per second
Charge = 13.5 C/s (10 min) ( 60 s / 1 min)
Charge = 8100 C 

Number of electrons = 8100 C / 1.602 x 10^(-19) C per electron
Number of electrons = 5.1 x 10^22 electrons

Therefore, there are 5.1 x10^22 electrons that assed through the heater for 10 minutes.
3 0
4 years ago
Explain how smoking damages the respiratory system and name two conditions that can develop when a person smokes. ribe the locat
kipiarov [429]

Answer

Explanation:

Smoking can cause lung disease by damaging your airways and the small air sacs (alveoli) found in your lungs. Lung diseases caused by smoking include COPD, which includes emphysema and chronic bronchitis. Cigarette smoking causes most cases of lung cancer.

6 0
3 years ago
Read 2 more answers
Using a 683 nm wavelength laser, you form the diffraction pattern of a 1.1 mm wide slit on a screen. You measure on the screen t
n200080 [17]

Answer:

10.2 m

Explanation:

The position of the dark fringes (destructive interference) formed on a distant screen in the interference pattern produced by diffraction from a single slit are given by the formula:

y=\frac{\lambda (m+\frac{1}{2})D}{d}

where

y is the position of the m-th minimum

m is the order of the minimum

D is the distance of the screen from the slit

d is the width of the slit

\lambda is the wavelength of the light used

In this problem we have:

\lambda=683 nm = 683\cdot 10^{-9} m is the wavelength of the light

d=1.1 mm = 0.0011 m is the width of the slit

m = 13 is the order of the minimum

y=8.57 cm = 0.0857 m is the distance of the 13th dark fringe from the central maximum

Solving for D, we find the distance of the screen from the slit:

D=\frac{yd}{\lambda(m+\frac{1}{2})}=\frac{(0.0857)(0.0011)}{(683\cdot 10^{-9})(13+\frac{1}{2})}=10.2 m

6 0
3 years ago
Other questions:
  • A squirrel runs from its nest in a tree
    13·1 answer
  • Definition of cloud formation in your own words
    13·1 answer
  • the gravitational force between two objects is 1600 and what will be the gravitational force between the objects if the distance
    15·1 answer
  • What would happen if guard cells in a plant stopped working
    15·1 answer
  • Why do solid have fixed shape?
    7·2 answers
  • A 30 kg mass and a 20 kg mass are joined by a light rigid rod and this system is free to rotate in the plane of the page about a
    6·2 answers
  • In what type of wave is the vibration perpendicular to the direction of travel of the wave
    7·1 answer
  • What two factors does speed depend on?
    8·1 answer
  • Equilibrium of forces
    5·2 answers
  • A 200g ball is accelerated from 5m/s to 25m/s in 0.3sec. What force was applied?​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!