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
zhenek [66]
3 years ago
6

What speed is a car going if it takes 2 hours to go 80 miles?

Physics
2 answers:
Dafna1 [17]3 years ago
8 0
Okay. If a car takes 2 hours to go 80 miles, the car is going 40 miles an hour. All you have to do is 80/2 in order to get your answer, because you do distance divided by time to find the speed.
user100 [1]3 years ago
4 0
The car would be moving at 40 miles per hour.
You might be interested in
With what force will a car hit a tree if the car has a mass of 3,415 kg and it is accelerating at
weeeeeb [17]

Answer:

F= 17,075\ N

Explanation:

When the car is under an accelerating force and hits a tree, the instant force received by the tree is the same force that is accelerating the car.

The accelerating force can be calculated using Newton's second law:

F=m\cdot a

Where m is the mass of the car and a is the acceleration.

F=3,415\ kg\cdot 5\ m/s^2

\boxed{F= 17,075\ N}

3 0
3 years ago
A 34.00 kg sample of mud has a specific heat of 2,512 J/kg °C.
Elena-2011 [213]

Answer:

B ig lol

Explanation:

6 0
3 years ago
Why are many mitochondria needed in cells that move, like muscle cells?
Deffense [45]
Muscle cells have to use a lot of energy and the Mitochondria is known as the "power house" of the cell... I would say the number of mitochondria needed is increased because more power and energy is being used in that cell than a normal one (idk if this helps or if that's the answer you were looking for)
3 0
3 years ago
The diagram shows a car moving along a road.
crimeas [40]

Answer:

A constant speed

correct me if I'm wrong

3 0
3 years ago
Read 2 more answers
(a) and (b) ??Thanks <br>HELP <br>d8 =1​
garri49 [273]

Explanation:

(a) You can solve this using kinematics or energy.

Using kinematics:

a = F/m = 90 N / 4 kg = 22.5 m/s²

v₀ = 0 m/s

Δx = 5 m

Find: v

v² = v₀² + 2aΔx

v² = (0 m/s)² + 2 (22.5 m/s²) (5 m)

v = 15 m/s

Using energy:

W = ΔKE

Fd = ½ mv²

(90 N) (5 m) = ½ (4 kg) v²

v = 15 m/s

(b) ΔU = mg Δh

ΔU = (4 kg) (9.8 m/s) (12 m sin 40° − 15 m)

ΔU = -290 J

W = ΔU = -290 J

7 0
3 years ago
Other questions:
  • What is Agent Object Notation? ( For Force Diagrams. )
    14·1 answer
  • Most of the energy we use today comes from renewable sources/<br> a. True<br> b. False
    9·2 answers
  • Unpolarized light of intensity I0 is incident on two polarizing filters. The transmitted light intensity is I0/10. What is the a
    5·1 answer
  • When a moving car is brought to a stop with the brakes, its acceleration vector is 29. (a) in the same direction as its velocity
    6·1 answer
  • An object is placed at 0 on a line. It moves 3 units to the rights then 4 to the left and then 6 units to the rigth.the displace
    11·1 answer
  • How does an object’s motion change as a result of centripetal acceleration?
    13·2 answers
  • A runner completes the 200-meter dash with a time of 19.80 seconds. What was the runner's average speed in miles per hour?
    15·1 answer
  • A 2.20 kg mass is at the origin. A
    9·2 answers
  • Is wooden blocks transparent,translucent or opaque ​
    6·2 answers
  • A particle in a 799=m-long linear particle accelerator is moving at 0.875C. How long does the particle accelerator appear to the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!