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
Vaselesa [24]
3 years ago
7

starting from a stop a traffic signal, a car speeds up to 20 m/s in 5 seconds. calculate the acceleration of the car.

Physics
1 answer:
Ira Lisetskai [31]3 years ago
8 0

Answer:

5.867 m/s^2

Explanation:

Initial Speed > 0 m/s

Final Speed > 20 m/s

Time > 5 sec.

You might be interested in
Explain why streets and highways have speed limits and not velocity limits.
alexdok [17]
We know that speed is a scalar unit while velocity is a vector. The signs are mostly concerned with the magnitude that the car should travel in, the direction is not as important. 

Hope I helped :) 
4 0
2 years ago
Do you have a lawn mower engine running for 20 minutes does 4,560, 000 J of work. What is the power output of the engine?
alekssr [168]

Answer:

P = 3800 W

Explanation:

Power is equal to energy divide by time P = E/t

plug in 4560000 J for energy

convert 20 minutes to seconds

20 * 60 = 1200 seconds

plug in 1200 seconds for time

P = 4560000/1200

P = 3800 W

7 0
3 years ago
Why cant people with aids foght out the infection?
sveta [45]
They can fight the infection but not the disease
3 0
3 years ago
Read 2 more answers
Tarik winds a small paper tube uniformly with 183 turns 183 turns of thin wire to form a solenoid. The tube's diameter is 9.49 m
Rufina [12.5K]
<h2>Answer:</h2>

143μH

<h2>Explanation:</h2>

The inductance (L) of a coil wire (e.g solenoid) is given by;

L = μ₀N²A / l                 --------------(i)

Where;

l = the length of the solenoid

A = cross-sectional area of the solenoid

N= number of turns of the solenoid

μ₀ = permeability of free space = 4π x 10⁻⁷ N/A²

<em>From the question;</em>

N = 183 turns

l = 2.09cm = 0.0209m

diameter, d = 9.49mm = 0.00949m

<em>But;</em>

A = π d² / 4                     [Take π = 3.142 and substitute d = 0.00949m]

A = 3.142 x 0.00949² / 4

A = 7.1 x 10⁻⁵m²

<em>Substitute these values into equation (i) as follows;</em>

L = 4π x 10⁻⁷ x 183² x 7.1 x 10⁻⁵ / 0.0209           [Take π = 3.142]

L = 4(3.142) x 10⁻⁷ x 183² x 7.1 x 10⁻⁵ / 0.0209

L = 143 x 10⁻⁶ H

L = 143 μH

Therefore the inductance in microhenrys of the Tarik's solenoid is 143

6 0
3 years ago
How many atoms are in 3.5 moles of sulfur
irina [24]
There are 2.1077x10^24 atoms of sulfur in 3.50 mols of sulfur.
5 0
2 years ago
Other questions:
  • Please help only eight questions C:
    12·2 answers
  • Why is it inaccurate to use mgy to calculate the potential energy of a satellite orbiting earth at a height one earth radius abo
    7·1 answer
  • Research four illnesses that afflict humans. Each illness should be caused by a pathogenic organism of a different type:
    12·1 answer
  • The process of changing a property of a wave to transmit information is called .
    14·2 answers
  • A scientist notices that an oil slick floating on water when viewed from above has many different colors reflecting off the surf
    7·1 answer
  • Through which medium will sound travel most rapidly?
    6·1 answer
  • _____ analyzes the interaction of low-frequency sound waves with tissues to create moving images of internal organs.
    14·1 answer
  • A generator consists of a rectangular loop with turns of wire spinning at in a uniform magnetic field. The generator output is c
    7·1 answer
  • When spray is applied to a car, the paint has a negative charge and the surface of the car has a positive charge. Some processes
    8·1 answer
  • Calculate the weight of a boy of mass 67kg on Earth if gravity = 10m/s/s.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!