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
saul85 [17]
3 years ago
15

If a thunder clap comes 1.5 s after the lightning strike, how far away is thestrike? ​

Physics
1 answer:
alexgriva [62]3 years ago
8 0

Answer:

514.5 meters

1687.9921 feet

Explanation:

speed of sound = 343 m/s

1.5 (seconds) x 343 (m/s) = 514.5 meters

You might be interested in
Which of the following is not a factor in whether a reaction will spontaneously occur? A. Entropy change of the system B. Enthal
Delvig [45]

Answer:

D

Explanation:

pressure change have nothing to do with the spontaneity.

Entropy change , enthalpy change , temperature have roles in deciding spontaneity.

6 0
3 years ago
Optical tweezers use light from a laser to move single atoms and molecules around. Suppose the intensity of light from the tweez
katrin [286]

Answer:

a= 4.4×10 m/s^2

Explanation:

pressure P  = E/c

Where, E = 100 W/m^2 intensity of light

c= speed of light  = 3×10^8 m/s

P = 1000/ 3×10^8

P = 3.33×10^(-6) Pa

Force F = P×A

  • P is the pressure and c= speed of light

F = 3.33×10^{-6}×6.65×10(-29)

= 2.22×10^{-6}

acceleration a  = F/m = 2.22×10^{-6}/ 5.10×10^{-27}

a= 4.4×10 m/s^2

4 0
4 years ago
A room that has an average ambient sound pressure level of 62 dBA and a maximum sound pressure level lasting more than a minute
cupoosta [38]

Answer:

Explanation:

A fire alarm notification appliance is an active fire protection component of a fire alarm system. The primary function of the notification appliance is to alert persons at risk.

If want the audible public mode signal to be hear clearly then, we need to have a sound level that is at least 15dB above the average ambient sound level or 5dB above the maximum sound level of at least 1minute

In this case the,

The average ambient sound level is 62dB,

And the maximum sound level is 68dB

Then, the public mode signal should be at least

1. 62dB+ 15dB=77dB

Or

2. 68dB +5dB =73dB.

Then the public mode signal hearing must be at least 77dB.

6 0
4 years ago
A ___ is awarded to the opposing team when that team violently or dangerously charges a opponent. ( in soccer)
Helen [10]

Answer:

(C)Direct kick

Explanation:

In a game of soccer (foot-ball) there are lots of rules involved in the game and there is penalty for each of the rules violated. Some of the rules include penalty kick, free kick, throw in, goal kick etc.

Free kick is of two types; direct kick and indirect kick.

Direct kick is awarded when a player outside 18 yards box violently or dangerously charges a opponent.

Indirect kick can be awarded when a goalkeeper inside 18 yards box commits certain offenses.

Therefore, the correction option is (C)Direct kick

7 0
3 years ago
The specific heat of water in its solid phase (ice) is 2090 J/(kg K), while in the liquid phase (water) its specific heat is 419
oee [108]

Answer:

d. 149 ⁰C.

Explanation:

Given;

mass of the block of ice, m = 2 kg

specific heat capacity of the ice, C = 2090 J/(kgK)

initial temperature of the ice, t₁ = -90 ⁰C

heat added to the ice, H = 1,000,000 J

let the final temperature of the ice = t₂

The final temperature of the ice after adding the heat is calculated as follows;

H = mC_{ice} \Delta t\\\\H = mC_{ice}  (t_2 - t_1)\\\\1,000,000 = 2 \times 2090 \times (t_2 - (-90))\\\\1,000,000 = 4,180(t_2 +90)\\\\1,000,000 = 4,180t_2 + 376,200\\\\1,000,000 - 376,200 = 4,180t_2\\\\623,800 = 4,180 t_2\\\\t_2 = \frac{623,800}{4,180} \\\\t_2 = 149 \ ^0C

Therefore, the new temperature of the water is 149 ⁰C.

4 0
3 years ago
Other questions:
  • When car tires are on hot pavement for too long, the pressure inside will ___________ and the volume within the tire will ______
    9·1 answer
  • Why does icing sugar dissolve more rapidly than granular sugar?
    14·1 answer
  • When jogging outside you accidently bump into a curb. Your feet stop but your body continues to move forward and you end up on t
    5·2 answers
  • Which scientist was the first to propose the heliocentric model of the universe
    13·2 answers
  • The world record for pole vaulting is 6.15 m. If the pole vaulter's gravitational potential energy is 4942 J, what is his mass?
    7·1 answer
  • If two equal charges are separated by a certain distance, the force of repulsion is F. Given F1, if each charge in F1 is doubled
    12·1 answer
  • 3) If an airplane is in flight cruising at constant velocity, what can be said about the net work
    7·1 answer
  • A woman takes her dog Rover for a walk on a leash. She pulls on the leash with a force of 30.0 N at an angle of 29° above the ho
    9·1 answer
  • From the Water in each of the next move
    8·1 answer
  • What is the physics definition of work? How is work calculated? How would you calculate the amount of work done in a slapshot.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!