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
alukav5142 [94]
2 years ago
11

A bicycle and its rider have a combined mass of 80 kg and a speed of 6 m/s. What is the magnitude of the average force needed to

bring the bicycle and its rider to a stop in 4 seconds?

Physics
2 answers:
anygoal [31]2 years ago
6 0

Answer: 120N

Explanation:Please see attachment for explanation

lisabon 2012 [21]2 years ago
4 0
The magnitude is 24 meter
You might be interested in
A ball on a string is swung around in a horizontal circle. The centripetal force
ivanzaharov [21]

Answer:

0.60 N, towards the centre of the circle

Explanation:

The tension in the string acts as centripetal force to keep the ball in uniform circular motion. So we can write:

(1)

where

T is the tension

m = 0.015 kg is the mass of the ball

is the angular speed

r = 0.50 m is the radius of the circle

We know that the period of the ball is T = 0.70 s, so we can find the angular speed:

And by substituting into (1), we find the tension in the string:

And in an uniform circular motion, the centripetal force always points towards the centre of the circle, so in this case the tension points towards the centre of the circle.

Explanation:

5 0
3 years ago
Which of the following statement best explain why Newton's Law of Motions important in science
wel
The first one, his laws helped explain the motion of objects in the universe.
3 0
2 years ago
Read 2 more answers
Elaborate on the reason that "cola" type drinks are used to make effective marinades.
Nadya [2.5K]

Answer: The phosphoric acid in cola helps to break down the meat.

Explanation: The acid inside of the Cola breaks down the meat, making it softer. On top of this, the sweetness adds flavor. The phosphates helps in maintaining the pH and buffer properties of the meat, causes emulsification of fats, thereby making it softer.

8 0
3 years ago
Read 2 more answers
How to divide electrons into energy levels?
lara31 [8.8K]
In Bohr's atomic model, he proposed that the electrons are revolving around the nucleus in their respective orbitals. There are 5 kinds of orbitals: the s, p, d and f orbitals. They differ in their energy level, shape and number of subshells. Each subshell holds two oppositely spinning electrons. The s has 1 subshell, p has 3, d has 5 and f has 7. You arrange the orbitals into energy levels just like how you write them in an electronic configuration.

In the first energy level, you only have one 1s orbital. In the second energy level, you have one 2s and one 2p orbital, the 2p having more energy than 2s. The other levels are shown in the picture.

6 0
3 years ago
A cat weighing 7 kg chases a mouse at a speed of 4 m/s. What is the kinetic energy of the cat?
jeka57 [31]
54J
You calculate kinetic energy by the equation.
KE= 1/2mv^2
m= mass
v= velocity
then we have
KE = 1/2 x 3 x 6^2
KE = 1/2 x 3 x 36 = 54J
8 0
2 years ago
Other questions:
  • Why are diamonds so good at cutting things answers?
    8·2 answers
  • Which planets can never be seen at midnight? A. The Superior planets. B. The Inferior planets C. All planets can be seen at midn
    10·1 answer
  • Complete the statement with the correct term. As the size of the nucleus increases, more ___ are needed to maintain the attracti
    10·2 answers
  • Scouts at a camp shake the rope bridge they have just crossed and observe the wave crests to be 9.70 m apart. If they shake the
    9·1 answer
  • A(n) 712 kg elevator starts from rest. It moves upward for 3.13 s with a constant acceleration until it reaches its cruising spe
    6·1 answer
  • How are the kidneys related to the excretory system?
    9·2 answers
  • (a) The Eskimo pushes the same 50.0-kg sled over level ground with a force of 1.75 102 N exerted horizontally, moving it a dista
    10·1 answer
  • Choose the list below that properly arranges objects in the Solar System (from closest to farthest from the center). Select one:
    13·2 answers
  • if an electron in an electron beam experiences a downward force of 2.0x10^-14N while traveling in a magnetic field of 8.3x10^-2T
    10·1 answer
  • PLEASE HELP ME I NEED AN ANSWER BY 10 PM OR I WILL GET AN F PLLLLLLLEEEEEEEEEEEEAAAAAAAAAAAASSSSSSSSSSSSSEEEEEEEEEEE
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!