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
babymother [125]
2 years ago
10

Silvia is driving at the speed limit of 25m/s when she sees an ambulance approaching in her rearview mirror. To move out of its

way, she accelerates to 32 m/s in 3 seconds. What was her acceleration.
Physics
1 answer:
lesya692 [45]2 years ago
6 0

a = ∆v/t  = (32 - 25) / 3 = 7/3 m/s2

You might be interested in
What would happen to a loop in a metal tube when it is heated
Galina-37 [17]
I think it most likely burn since th metal tube is going to transfer so much heat
8 0
2 years ago
What happens to its surface temperature as a star changes color from red to blue
MAVERICK [17]
The surface temperature of the star increases when it changes its colour changes from red to blue.
Blue>white>yellow>orange>red
The given series is the temperature decreasing order of stars. Now our sun is considered as a yellow star.
5 0
3 years ago
A certain 60.0 Hz AC power line radiates an electromagnetic wave having a maximum electric field strength of 11.6 kV/m.
yuradex [85]

Explanation:

Given that,

Frequency of the power line, f = 6 Hz

Value of maximum electric field strength of 11.6 kV/m

(a) The wavelength of this very low frequency electromagnetic wave is given by using relation as :

c=f\lambda

\lambda=\dfrac{c}{f}

\lambda=\dfrac{3\times 10^8\ m/s}{60\ Hz}

\lambda=5\times 10^6\ m

(b) As its can be seen that the wavelength of this wave is very high. It shows that it is a radio wave.

(c) The relation between the maximum magnetic field strength and maximum electric field strength is given by :

B_0=\dfrac{E_0}{c}\\\\B_0=\dfrac{11.6\times 10^3}{3\times 10^8}\\\\B_0=3.86\times 10^{-5}\ T

So, the maximum magnetic field strength is 3.86\times 10^{-5}\ T.

7 0
3 years ago
Read 2 more answers
an empty propane tank dropped from a hot air balloon hits the ground with a speed of 143.8 m/s. from what height was the tank re
vodomira [7]
What you know:
Vi=0m/s
Vf=143.8m/s
A=-9.8m/s
d=???
Use the equation Vf^2=Vi^2+2A(d)
Rearrange to isolate d: d=Vf^2/2A
d=(143.8)^2/2(-9.8)
d=20678.4/-19.6
d=-1055m
The tank was released from a height of 1055m
8 0
3 years ago
What affect does a tripling of the net force have upon the acceleration of the object ? Be quantitative
vovikov84 [41]
The formula of net Force is:
F = ma
where m is the mass of the object
a is the acceleration of the object

so if we triple the net force applied to the object:
3F = ma
a = 3F / m

so the acceleration will also be tripled. because from the equation, the force is directly proportional to the acceleration
5 0
2 years ago
Other questions:
  • A student pulls a box across a horizontal floor at a constant speed of 4.0 meters per second by exerting a constant horizontal f
    10·2 answers
  • I have a special thermos that has a vacuum chamber between my hot soup and its outside wall. Because my soup is isolated from it
    5·1 answer
  • 13 points and brainlyest if possible. Thanks.
    7·2 answers
  • Esmerelda may have a brain tumor. Her doctor will most likely use to view the tumor.
    6·2 answers
  • a student moves a box across the floor by exerting 23.3 N of force and doing 47.2 J of work on the box. How far does the student
    9·1 answer
  • Proper design of automobile braking systems must account for heat buildup under heavy braking. Part A Calculate the thermal ener
    14·1 answer
  • Explain non-duality in one sentence
    8·2 answers
  • Select the correct answer
    14·1 answer
  • Which of the following is required for U.S. citizens to travel outside the United States?
    13·1 answer
  • Rotational speed refers to the number of complete _____ in a given amount of time.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!