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
PolarNik [594]
3 years ago
11

A car travels forward with constant velocity. It goes over a small stone, which gets stuck in the groove of a tire. The initial

acceleration of the stone, as it leaves the surface of the road is,
a) vertically up
b) horizontally forward
c) horizontally backwards
d) zero
e) greater than zero but less than 45 degrees below the horizontal
Physics
1 answer:
kolbaska11 [484]3 years ago
8 0

Answer:

a) vertically up

Explanation:

A car travels forward with constant velocity. It goes over a small stone, which gets stuck in the groove of a tire. The initial acceleration of the stone, as it leaves the surface of the road is,

a) vertically up

b) horizontally forward

c) horizontally backwards

d) zero

e) greater than zero but less than 45 degrees below the horizontal

A vertically upward since that is the direction of centripetal acceleration at that time. as the stone enters the circular path of the tire, it does so with a centripetal acceleration which is directed upward

You might be interested in
A child's toy consists of a spherical object of mass 50 g attached to a spring. One end of the spring is fixed to the side of th
Artemon [7]

Answer:

0.14 J

Explanation:

The maximum velocity is the amplitude times the angular frequency.

vmax = Aω

ω = vmax / A

ω = (3.2 m/s) / (0.06 m)

ω = 53.3 rad/s

For a spring-mass system:

ω = √(k / m)

ω² = k / m

k = ω²m

k = (53.3 rad/s)² (0.050 kg)

k = 142 N/m

The elastic potential energy is:

EE = ½ kx²

EE = ½ (142 N/m) (0.044 m)²

EE = 0.14 J

6 0
3 years ago
Which of the following questions could best be answered by the work of Christian Doppler?
Nina [5.8K]
The answer is B
How quickly are the stars in the Milky Way moving away from Earth
8 0
3 years ago
Read 2 more answers
A box is pushed toward the right across a classroom floor.The force of friction on the box is directed toward the
noname [10]
Left. Opposite of the direction the box is pushed.
4 0
3 years ago
Consider a short time span just before and after the spark plug in a gasoline engine ignites the fuel-air mixture and releases 1
Tju [1.3M]

Answer:

Temperature after ignition=7883.205 K

Explanation:

The number of moles is,

n=PV/RT

=(1.18x10^6)(47.9x10^-6)/8.314(325)

= 0.0209 moles

a) In this process volume is constant

Q=U

=nCv.dT

dT= Q/nCv

=1970/(1.5x8.314)(0.0209)

= 7558.205 K

The final temperature is,

= 7558.205+325

= 7883.205 K

5 0
3 years ago
Read 2 more answers
12 g … _____________________kilograms
Julli [10]
.012 kilograms Explanation.
3 0
4 years ago
Read 2 more answers
Other questions:
  • 1. applied research
    12·1 answer
  • The unit of measure for resistance is<br><br>volt<br>coulomb<br>ohm<br>watt<br>ampere
    6·2 answers
  • Which two objects repel each other?
    13·1 answer
  • The current in a hair dryer measures 11 amps. The resistance of the hair dryer is 12 ohms. What is the voltage?
    5·1 answer
  • what is the distance between a point on one wave and the same point on the next cycle of the wave called
    9·1 answer
  • A sound wave travels through air. The wavelength of the sound wave is equal to the distance between _____. adjacent centers of a
    12·2 answers
  • Find ur, the the energy dissipated in the resistor. express your answer in terms of u and other given quantities.
    10·1 answer
  • NEED HELP!!! ANSWER THESE 5 QUESTIONS FOR 25 POINTS!!!! PLEASE ANSWER!! I WILL GIVE YOU BRAINEST
    5·1 answer
  • What is the difference between a trait and a characteristic? Then give one example of each.
    8·1 answer
  • How is one metre length define in SI system?​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!