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
Alexxandr [17]
3 years ago
6

A 1200kg car is driving at 40m/s on a wet asphalt road. If the driver slams on the brakes and the car skids to a halt. a)What is

the Force of friction acting on the car?
b) What would the force of friction be if the road was dry?

c) Will the car go farther when the road is wet or dry? Explain
Physics
2 answers:
qwelly [4]3 years ago
8 0

Answer:

It's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadness

Explanation:

ycow [4]3 years ago
6 0

Answer:

the answer is B

Explanation:

You might be interested in
Larry sees a group of people weeping, with frowns on their faces and their eyes turned down. Larry their expressions to understa
Salsk061 [2.6K]

Answer:

c

Explanation:

no need explanation u can trust me

8 0
3 years ago
How many photons per second are emitted by the antenna of a microwave oven if its power output is 1.00 kw at a frequency of 2515
Norma-Jean [14]
The power of the antenna is
P=1.00 kW=1000 W
and since the power is the emitted energy divided by the time, the energy emitted per second is
E=Pt = (1000 W)(1 s)=1000 J

The frequency of the emitted photons is
f=2515 MHz=2.515 \cdot 10^9 Hz
So the energy of a single photon is
E_1=hf=(6.6 \cdot 10^{-34} Js)(2.515 \cdot 10^9 Hz)=1.66 \cdot 10^{-24} J

Therefore, to find the number of emitted photons per second, we should divide the total energy emitted by the antenna in 1 second by the energy of a single photon:
N= \frac{E}{E_1}= \frac{1000 J}{1.66 \cdot 10^{-24} J}=  6.02 \cdot 10^{26}
8 0
3 years ago
A satellite, moving in an elliptical orbit, is 368 km above Earth's surface at its farthest point and 164 km above at its closes
Marat540 [252]

Answer:

a) 6636 km

b) 0.0154

Explanation:

The height above the earth at its furthest point is 368 km

The height above the earth at its closest point is 164 km

Radius of the Earth is 6370 km

The distance of the satellite from the center of the earth to the furthest point is 6370 + 368 km = 6738 km

The distance of the satellite from the center of the earth to the closest point is 6370 + 164 = 6534 km

If we add together the sum of the distance of the satellite from the furthest and its closest distance, it is equal to the 2 major semi axis.

Basically,

2a = R + r

a = (R + r) / 2

a = (6738 + 6534) / 2

a = 13272 / 2

a = 6636 km

Eccentricity, e = (a - r) / a

Eccentricity, e = (6636 - 6534) / 6636

Eccentricity, e = 102 / 6636

Eccentricity, e = 0.0154

3 0
3 years ago
T=2pi square root 1/g solve for g.<br> Explanation would be really helpful.
Natalija [7]

I added individual steps for clarity. Note that g must be positive if the solution is to be real.

T=2\pi \sqrt{\frac{1}{g}}=2\pi g^{-\frac{1}{2}}\\g^{-\frac{1}{2}} = \frac{T}{2\pi}\\(g^{-\frac{1}{2}})^{-2} = (\frac{T}{2\pi})^{-2}\\g = \frac{4\pi^2}{T^2}\,\,\,, g>0}

Let me know if you have any questions.

7 0
3 years ago
A ball is held at rest at the top of a hill. The ball is then released and starts rolling down the hill. At the bottom it reache
Alex17521 [72]

Answer:

Gravitational Potential Energy

Explanation:  

a ball is held rest at the top of hill  

gravitational potential energy will store due to its height  

it.   and  body will start move downward and its potential energy will convert into kinetic energy due to motion of body

at the ground level it will stop and potential energy will became zero and kinetic energy get convert into internal energy due to collisions

3 0
3 years ago
Other questions:
  • A deer moving with uniform velocity 10m/s is being chased by a leopard, when will it catch the deer, if it was initially 10 m be
    5·1 answer
  • The following diagram represents a cart with an initial velocity of 1.0 m/s sliding along a frictionless track from point A:
    9·2 answers
  • Uncle Fester's CD's
    12·1 answer
  • A flowerpot falls off a windowsill and passes the win- dow of the story below. Ignore air resistance. It takes the pot 0.380 s t
    14·1 answer
  • A solid disc with a radius of 5.00 m and a mass of 20.0 kg is initially at rests and lies on the plane of the paper. A smaller s
    13·1 answer
  • Lightning strikes are dangerous _______.
    13·2 answers
  • How does the tilt of the earth affect climate?
    15·1 answer
  • If the third charge (–| q 3 |) is placed at point P, but not held fixed, it will experience a force and accelerate away from the
    14·1 answer
  • True or False: Our food has potential energy?
    7·2 answers
  • If the needle in the galvanometer is going up, what can you conclude about the motion of the magnet in the diagram?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!