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
jekas [21]
3 years ago
9

A driver's foot presses with a steady force of 20N on a pedal in a car as shown.

Physics
1 answer:
azamat3 years ago
6 0

Answer:

160N

Explanation:

Moments must be conserved - so.

20 * 0.4 = F * 0.05

F=\frac{20*0.4}{0.05} = 160

You might be interested in
An arrow is shot into a falling apple. What type of collision is this an example of?
Ad libitum [116K]

Answer:

The answer is B. Inelastic.

4 0
3 years ago
Read 2 more answers
A ball is thrown straight down with a speed of Va2.00 from a building 40.00 meters high. How much S time passes before the ball
-Dominant- [34]

Answer:

Option C is the correct answer.

Explanation:

Considering vertical motion of ball:-

Initial velocity, u =  2 m/s

Acceleration , a = 9.81 m/s²

Displacement, s = 40 m

We have equation of motion s= ut + 0.5 at²

Substituting

   s= ut + 0.5 at²

    40 = 2 x t + 0.5 x 9.81 x t²

   4.9t²  + 2t - 40 = 0

   t = 2.66 s   or t = -3.06 s

So, time is 2.66 s.

Option C is the correct answer.

6 0
3 years ago
What is a Cell?<br><br> Don't look it up PLEASE... I WILL GIVE BRAINLIEST
Travka [436]

Explanation:

Cell is a structural and fundamental unit mass of the body

6 0
2 years ago
A projectile of mass 1.800 kg approaches a stationary target body at 4.800 m/s. The projectile is deflected through an angle of
Artyom0805 [142]

Answer:

P = 5.22 Kg.m/s

Explanation:

given,

mass of the projectile = 1.8 Kg

speed of the target = 4.8 m/s

angle of deflection = 60°

Speed after collision = 2.9 m/s

magnitude of momentum after collision = ?

initial momentum of the body = m x v

                                                  = 1.8 x 4.8 = 8.64 kg.m/s

final momentum after collision

momentum along x-direction

P_x = m v cos θ

P_x = 1.8 x 2.9 x  cos 60°

P_x = 2.61 kg.m/s

momentum along y-direction

P_y = m v sin θ

P_y = 1.8 x 2.9 x  sin 60°

P_y = 4.52 kg.m/s

net momentum of the body

P = \sqrt{P_x^2 + P_y^2}

P = \sqrt{4.52^2 + 2.61^2}

 P = 5.22 Kg.m/s

momentum magnitude after collision is equal to P = 5.22 Kg.m/s

5 0
3 years ago
In a electrically natural atom of any element there are equal numbers of
Usimov [2.4K]

Answer:  Atoms are electrically neutral because they have equal numbers of protons (positively charged) and electrons (negatively charged). If an atom gains or loses one or more electrons, it becomes an ion.

8 0
3 years ago
Other questions:
  • Which trophic level usually has the LEAST energy available to it?
    15·1 answer
  • A positive charge of 6.0 × 10-4 C is in an electric field that exerts a force of 4.5 × 10-4 N on it. What is the strength of the
    6·2 answers
  • Explain why particles in a gas are free to move far away from each other.
    11·2 answers
  • Which of the following best describes images formed by a convex mirror?
    12·2 answers
  • To make electricity using magnets you need a magnet, wire and a what?
    8·2 answers
  • Match each example with the appropriate stage of technological design. drag each arrow to its correct match.
    13·1 answer
  • Two narrow slits are 0.12 mm apart. light of wavelength 550 nm illuminates the slits, causing an interference pattern on a scree
    9·1 answer
  • Two deer run toward each other. One deer has a mass of 20 kg and runs west
    7·2 answers
  • How would the atmosphere of earth differ if the earth was much larger
    9·2 answers
  • PLEASE HELP THIS TEST IS DUE IN TEN MINS
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!