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
Setler [38]
3 years ago
9

A 845kg dragster (very fast car) accelerates from 2m/s to 30m/s in 0.9s. Determine the average force exerted on the dragster.

Physics
1 answer:
Stella [2.4K]3 years ago
7 0

Answer:

Explanation:

Just use the Force formula.

F = M . A

Acceleration Formula

A = V - Vo / Time

So...

F = 845 . (30 - 2 / 0.9)

F = 845 . 20

F = 16900 N

You might be interested in
Student one used bowling ball A in a bowling game against Student 2, who used bowling ball B. Use Newton’s Three Laws of Motion
Jlenok [28]

Answer:

Newton’s Three Laws of Motion has a great impact.

Explanation:

Newton’s Three Laws of Motion has a great impact on the bowling game for the 2 students. When the student one throw ball to the student 2, the ball decrease its speed due to the gravity and opposing air. If these forces are removed from the system the ball will continue its motion till another force is applied on it. When the force applied to the ball it produces acceleration in the direction to the applied force. If the ball touches the ground it bounce back with equal force which is a reaction of the ground.

8 0
3 years ago
The density of aluminum is 2.7 × 103 kg/m3 . the speed of longitudinal waves in an aluminum rod is measured to be 5.1 × 103 m/s.
andrey2020 [161]
<span>The speed of longitudinal waves, S, in a thin rod = âšYoung modulus / density , where Y is in N/m^2. So, S = âšYoung modulus/ density. Squaring both sides, we have, S^2 = Young Modulus/ density. So, Young Modulus = S^2 * density; where S is the speed of the longitudinal wave. Then Substiting into the eqn we have (5.1 *10^3)^2 * 2.7 * 10^3 = 26.01 * 10^6 * 2.7 *10^6 = 26.01 * 2.7 * 10^ (6+3) = 70.227 * 10 ^9</span>
5 0
3 years ago
What does the angular momentum quantum number determine? Check all that apply.
amm1812
I think the correct answers from the choices listed above are options 1, 5 and 7. Angular momentum quantum number determine the energy of an orbital, the shape of the orbital and <span>the overall size of an orbital. Hope this answers the question.</span>
8 0
3 years ago
Read 2 more answers
A mass of 5 kg is moving at 5 m/s when it collides with another mass of 2 kg moving in the same direction at 2 m/s. After the co
Paul [167]

Answer:

4.14 m/s

Explanation:

m¹u¹+m²u²=(m¹+m²)v

5(5)+2(2)=(5+2)v

25+4=7v

29=7v

29/7=v

v=4.14 m/s

6 0
3 years ago
What would make oppositely charged objects attract each other more?
masya89 [10]

Answer:

the attraction between N and S poles

6 0
3 years ago
Other questions:
  • A body completes 20 revolution in 5sec calculate time period and frequency.
    8·1 answer
  • Which phrase best completes the following analogy?
    15·2 answers
  • A material's ability to allow heat or electricity to flow through it...
    14·1 answer
  • A weightlifter lifts a 250-kg mass 0.5 meters above his head, how much PEg does the mass have (Note: g=9.8 m/s2)? Round your ans
    14·2 answers
  • Two of the types of ultraviolet light, uva and uvb, are both components of sunlight. their wavelengths range from 320 to 400 nm
    12·2 answers
  • A horizontal force of 350N is exerted on a 2.5 kg ball as it rotates uniformly in a horizontal circle of radius of 0.90m. Calcul
    6·1 answer
  • What would be the path of an object thrown in the air if there was no gravity?
    5·2 answers
  • A storm front moves in and Rachel and Pam notice the column of mercury in the barometer rises only to 736 mm. Assume the density
    11·1 answer
  • What happens when an atoms losses an electron-
    12·1 answer
  • Correlation is:
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!