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
klio [65]
3 years ago
15

A car is traveling on a straight, level road under wintry conditions. Seeing a patch of ice ahead of her, the driver of the car

slams on her brakes and skids on dry pavement for 50 m , decelerating at 7.5 m/s2 . Then she hits the icy patch and skids another 70 m before coming to rest.
A) If her initial speed was 78 mi/h , what was the magnitude of the deceleration on the ice?
Physics
1 answer:
dangina [55]3 years ago
5 0
Her magnitude of deceleration on the ice would be 15.126m/s
You might be interested in
Two conducting parallel plates 5.0 × 10−3 meter apart are charged with a 12-volt potential
photoshop1234 [79]

Answer: 2.4×10^-3 v/m

Explanation: distance between plates of capacitor (d) =5.0×10^-3m

Potential difference between plates (v) = 12v

Force on electronic charge (f) = 3.8×10^-16 N

Strength of electric field (E) =?

The formulae that relates potential difference, eoectiic field strength and distance between plates is given as

v = Ed

By substituting the parameters, we have that

12 = E × 5.0×10^-3

E = 12/ 5.0 × 10^-3

E = 2.4×10^-3 v/m

7 0
3 years ago
Choose the ending that best completes the following sentence: If an object is traveling with a constant velocity… A. There are n
Margarita [4]

I think the answer is B...

3 0
3 years ago
A proton moving at 8.9 × 106 m/s through a magnetic field of 0.96 T experiences a magnetic force of magnitude 3.8 × 10−13 N. Wha
goblinko [34]

Answer: 15.66 °

Explanation: In order to solve this proble we have to consirer the Loretz force for charge partcles moving inside a magnetic field. Thsi force is given by:

F=q v×B = qvB sin α where α is teh angle between the velocity and magnetic field vectors.

From this expression and using the given values we obtain the following:

F/(q*v*B) = sin α

3.8 * 10^-13/(1.6*10^-19*8.9*10^6* 0.96)= 0.27

then  α =15.66°

8 0
3 years ago
Taigas, tundra and tropical rainforests share what common abiotic component?
e-lub [12.9K]

Answer:

water

Explanation:

hope this helps

6 0
3 years ago
True or false cells of humans and plants are same.​
timama [110]
False, we lack cell walls whereas they have cell walls.
4 0
2 years ago
Other questions:
  • What is the wavelength of a 256-hertz sound
    9·1 answer
  • Why is meiosis a key step in sexual reproduction? Select all that apply. creates gametes with two sets of chromosomes creates th
    15·1 answer
  • A ball is dropped from the top of an eleven-story building to a balcony on the ninth floor. In which case is the change in the p
    6·1 answer
  • Without understanding mathematics, it is practically impossible to see its applicability and beauty
    11·1 answer
  • The highly exothermic thermite reaction, in which aluminum reduces iron(iii) oxide to elemental iron, has been used by railroad
    14·1 answer
  • Power is work done over a what?
    7·1 answer
  • City A is much larger than city B, but they are located at the same latitude and elevation. However, city A is receiving more ra
    8·1 answer
  • In Fraunhofer diffraction wave front used is __________. A. Spherical B. Circular C. Plane D. Conical
    11·1 answer
  • Consider a series of motion scenarios. Each scenario is accompanied by a short description and an arrow indicating the instantan
    15·1 answer
  • Water flows through a horizontal pipe with a cross-sectional area of 3mat a speed of 10 m/s with a pressure of 3 Bars at a Point
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!