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
Georgia [21]
3 years ago
15

How long would it take a drag racer to increase her speed from 10.m/s to 20 m/s if her car accelerates at a uniform rate of 15 m

/s
Physics
1 answer:
garik1379 [7]3 years ago
5 0
It would take about 2 thirds of a second or .66666666 repeating of a second. please give brainliest?
You might be interested in
An object is positively charged if it has more what​
kkurt [141]

Answer:

An Object is positively charged if it has more Positive Electrons in that object

8 0
3 years ago
A ball is thrown up into the air with an initial velocity of 18 m/s. A) How high does the ball go? B) Calculate the time needed
kaheart [24]

Answer:

B) t = 1.83 [s]

A) y = 16.51 [m]

Explanation:

To solve this problem we must use the following equation of kinematics.

v_{f} =v_{o} -g*t

where:

Vf = final velocity = 0

Vo = initial velocity = 18 [m/s]

g = gravity acceleration = 9.81 [m/s²]

t = time [s]

Note: the negative sign in the above equation means that the acceleration of gravity is acting in the opposite direction to the motion.

A) The maximum height is reached when the final velocity of the ball is zero.

0 = 18 - (9.81*t)

9.81*t = 18

t = 18/9.81

t = 1.83 [s], we found the answer for B.

Now using the following equation.

y = y_{o} + v_{o}*t - 0.5*g*t^{2}\\

where:

y = elevation [m]

Yo = initial elevation = 0

y = 18*(1.83) - 0.5*9.81*(1.83)²

y = 16.51 [m]

7 0
2 years ago
Suppose you first walk 12.5 m in a direction 20° west of north and then 24 m in a direction 40° south of west as shown in the fi
Firlakuza [10]
La ce materie vr ca sunt pe tableta

3 0
2 years ago
2. physical quantities which do not depend on any physical quantities for their measurements are known as​
seropon [69]

Answer:

Fundamental quantities

5 0
2 years ago
An object is moving at a constant speed along a straight line. Which of the following statements is not true? A. There must be a
Svetradugi [14.3K]

Answer:

False statement = There must be a non-zero net force acting on the object.  

Explanation:

An object is moving at a constant speed along a straight line. If the speed is constant then its velocity must be constant. We know that the rate of change of velocity is called acceleration of the object i.e.

a=\dfrac{dv}{dt}

a = 0

⇒ The acceleration of the object is zero.

The product of force and acceleration gives the magnitude of force acting on the object i.e.

F = m a = 0

⇒  The net force acting on the object must be zero.

So, the option (a) is not true. This is because the force acting on the object is zero. First option contradicts the fact.

6 0
3 years ago
Other questions:
  • Choose the 200 kg refrigerator. Set the applied force to 400 N (to the right). Be sure friction is turned off.What is the net fo
    7·2 answers
  • In which year was the first Badminton game played in the Olympics
    10·2 answers
  • in the history of astronomy, which of the following is true? a. galileo galilei was a student of tycho brahe. b. johannes kepler
    12·1 answer
  • Nuclear fusion combines nuclei to form: lighter elements heavier elements
    14·2 answers
  • 5. Sandor fills a bucket with water and whirls it in a vertical circle to demonstrate that the
    6·1 answer
  • A Force has a size and a(n)?
    10·2 answers
  • A 2.0 cm thick brass plate (k_r = 105 W/K-m) is sealed to a glass sheet (kg = 0.80 W/K m), and both have the same area. The expo
    11·1 answer
  • A electric engine transfers 300j into kinetic energy, 280j into heat energy, and 160j into sound energy. What is the efficiency
    12·1 answer
  • There is said to be a short circuit when
    15·1 answer
  • The following table lists the speed of sound in various materials. Use this table to answer the question.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!