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
Nikolay [14]
2 years ago
7

What happens to the air resistance on a car as it speeds up? A) decreases b)stays the same C)it changes direction of the car D)i

ncreases
Physics
1 answer:
Naya [18.7K]2 years ago
5 0

the answer is D- increases

You might be interested in
Select the correct answer.
Murrr4er [49]

Answer:

I will choose the answer A

3 0
3 years ago
A child throws a ball with an initial speed of 8.00 m/s at an angle of 40.0° above the horizontal. The ball leaves her hand 1.00
vivado [14]

Answer:

7.5 m

Explanation:

v = initial speed of the ball = 8 m/s

\theta = angle of launch = 40° deg

Consider the motion along the vertical direction :

v_{oy} = initial velocity along vertical direction = v Sin\theta = 8 Sin40 = 5.14 m/s

a_{y} = acceleration along vertical direction = - 9.8 m/s²

t = time of travel

y = vertical displacement = - 1 m

Using the kinematics equation

y = v_{oy}t + (0.5)a_{y}t^{2}

- 1 = (5.14)t + (0.5)(- 9.8)t^{2

t = 1.22 sec

Consider the motion along the horizontal direction :

v_{ox} = initial velocity along horizontal direction = v Sin\theta = 8 Cos40 = 6.13 m/s

a_{x} = acceleration along vertical direction = 0 m/s²

t = time of travel = 1.22 sec

x = horizontal displacement = ?

Using the kinematics equation

x = v_{ox}t + (0.5)a_{x}t^{2}

x = (6.13)(1.22) + (0.5)(0)(1.22)^{2

x = 7.5 m

4 0
2 years ago
Please Help!!!!! Quickly!!!! brainiest to correct answer !!!!!!
iragen [17]
Just show a picture so I can help ur information is misleading...
5 0
3 years ago
Compare the atmospheric pressure of two places 500m and 2 km respectively above sea-level. Give reason for your answer.
Lera25 [3.4K]

Answer:

Explanation:

The average pressure at mean sea-level (MSL) in the International Standard Atmosphere (ISA) is 1013.25 hPa, or 1 atmosphere (atm), or 29.92 inches of mercury. Pressure (p), mass (m), and the acceleration due to gravity (g), are related by P = F/A = (m*g)/A, where A is surface area.

3 0
3 years ago
a particle moves with simple harmonic motion.if it's acceleration is 100 times it's displacement what is it's period​
Liono4ka [1.6K]

Answer:

Simple harmonic motion is repetitive. The period T is the time it takes the object to complete one oscillation and return to the starting position. ... If at t = 0 the object has its maximum displacement in the positive x-direction, then φ = 0, if it has its maximum displacement in the negative x-direction, then φ = π.

Explanation:

Simple harmonic motion, in physics, repetitive movement back and forth through an equilibrium, or central, position, so that the maximum displacement on one side of this position is equal to the maximum displacement on the other side

4 0
3 years ago
Other questions:
  • What are the layers of the earth
    13·1 answer
  • Compared to the earth would the sun appear to move more quickly across Mercury’s sky or more slowly? Why?
    13·1 answer
  • Can u help me thanks so<br> Much ❤️
    7·1 answer
  • The fulcrum is the
    10·1 answer
  • The drawings show three charges that have the same magnitude but may have different signs. In all cases the distance d between t
    15·1 answer
  • What is the difference between epicenter and focus?
    9·1 answer
  • An astronaut is traveling in a space vehicle that has a speed of 0.480c relative to Earth. The astronaut measures his pulse rate
    14·1 answer
  • when light falls obliquely, there is a change in direction as it moves from one medium to another but when it falls perpendicula
    13·1 answer
  • How far does a car travel in 10 s if its initial velocity is 3 m/s and its acceleration
    14·1 answer
  • A solid weighs 0.9N in air and 0.2N in a liquid of density 700kg/m^3. Calculate
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!