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
MAXImum [283]
3 years ago
8

A race car has a mass of 710 kg. it starts from rest and travels 40.0 m in 3.0 s. the car is uniformly accelerated during the en

tire time. what is the net force exerted on it?
Physics
2 answers:
Oksanka [162]3 years ago
4 0
6300N is the answer i believe

goblinko [34]3 years ago
3 0

<span><span>6300 newtons.

If this was the appropriate answer make sure to mark as the brainliest!
-procklown</span></span>

You might be interested in
A U-shaped tube open to the air at both ends contains some mercury. A quantity of water is carefully poured into the left arm of
Gekata [30.6K]

Answer:

a) P=2450\ Pa

b) \delta h=23.162\ cm

Explanation:

Given:

height of water in one arm of the u-tube, h_w=25\ cm=0.25\ m

a)

Gauge pressure at the water-mercury interface,:

P=\rho_w.g.h_w

we've the density of the water =1000\ kg.m^{-3}

P=1000\times 9.8\times 0.25

P=2450\ Pa

b)

Now the same pressure is balanced by the mercury column in the other arm of the tube:

\rho_w.g.h_w=\rho_m.g.h_m

1000\times 9.8\times 0.25=13600\times 9.8\times h_m

h_m=0.01838\ m=1.838\ cm

<u>Now the difference in the column is :</u>

\delta h=h_w-h_m

\delta h=25-1.838

\delta h=23.162\ cm

7 0
3 years ago
How does a parallel circuit differ from a series circuit?
8_murik_8 [283]
I think the correct answer from the choices listed above is option B. A parallel circuit differ from a series circuit in a sense that a <span>series circuit has one path for electrons, but a parallel circuit has more than one path. In a parallel circuit there two or more paths for current to flow while a series circuit only has one.</span>
5 0
3 years ago
Contrary to popular belief, a ski jumper does not achieve a large amount of "air" when doing a jump (less than 6 feet). This is
Elina [12.6K]

Answer:

The vertical distance that the ski jumper fell is 417.45 m.

Explanation:

Given;

initial horizontal velocity of the jumper, V_x = 26 m/s

horizontal distance of the jumper, dx = 240 m

The time of the motion is given by;

dx = Vₓt

t = dx / Vₓ

t = 240 / 26

t = 9.23 s

The vertical distance traveled by the diver is given by;

d_y = V_yt + \frac{1}{2}gt^2

initial vertical velocity, V_y, = 0

d_y =  \frac{1}{2}gt^2\\\\d_y = \frac{1}{2}(9.8)(9.23)^2\\\\d_y = 417.45 \ m

Therefore, the vertical distance that the ski jumper fell is 417.45 m.

6 0
3 years ago
What is electrostatic repulsion?
Anton [14]
Electrostatic repulsion is the force between two charges having the same sign, that tends to separate them further. The force is proportional to the product of the charges, and inversely proportional to the square of the distance between them.
8 0
3 years ago
Read 2 more answers
A box with a mass of 7 kilograms is pushed up a ramp to a height of 5 meters. What is the work done against the force of gravity
muminat
The potential energy of the box when it gets to the top is

                  (mass) (gravity) (height)

             =    (7 kg) (9.8 m/s²) (5 m)

             =          343 joules.

That's the work done against the force of gravity.  Any
additional work is done against the force of friction.  
6 0
3 years ago
Other questions:
  • A point from which the position of other objects can be described is called what?
    5·1 answer
  • an input force of 20 newtons is applied to a lever at a distance of 2 meters from the fulcrum and object 0.5 M away from the ful
    12·1 answer
  • A science teacher who was teaching a unit on minerals modeled mineral formation for the class. She heated granular sugar and a v
    10·2 answers
  • Choose the answer that best completes this sentence: The moon may have contributed to the evolution of life from _____.
    6·1 answer
  • Which of these forces could slow a moving baseball down?
    9·2 answers
  • Two ice skaters stand facing each other at rest on a frozen pond. They push off against one another and the 48 kg skater acquire
    10·2 answers
  • Find the Gravitational Potential at a point on the earth’s surface. Take mass of earth as 5.98 X 10 24 kg, its radius as 6.38 X
    5·1 answer
  • The method of heat transfer by which the sun energy reaches the earth is
    8·2 answers
  • If the mass of a body is 9.8kg on the earth, what would be its mass on the moon?​
    11·1 answer
  • Running a 5k would be an example of a good short-term goal for someone who is just starting out running.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!