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
MArishka [77]
3 years ago
13

The force of gravity will make it easier to stop your car if you are going uphill, and more difficult to stop your car if you ar

e going downhill.
Physics
1 answer:
Vaselesa [24]3 years ago
6 0
The force of gravity will cause your vehicle to speed up when going downhill, and slow down when going uphill. The energy of motion increases proportionally with the increase in weight, and the energy increases proportionally with the square of the increase in speed. Increase with an increase of your kinetic energy. Gravity decreases your kinetic energy when driving uphill and increases it when driving downhill. Therefore, the force of gravity will make it easier to stop your car if you're going uphill but more difficult to stop your car if you're going downhill.
You might be interested in
What are three tecnologies tht are used to observe things that are difficult to visit?
Pachacha [2.7K]
Telescopes, because we can visually visit the moon lol.
Camera Pills, so we can see the inside of a person

3 0
3 years ago
(a) What is the tangential acceleration of a bug on the rim of a 13.0-in.-diameter disk if the disk accelerates uniformly from r
Oksi-84 [34.3K]

Answer:

0.321659377 m/s²

1.383138458 m/s

0.321659377 m/s²

0.62667 m/s²

0.7044 m/s² and 27.17°

Explanation:

d = Diameter of rim = 13 in = 13\times 0.0254=0.3302\ m

r = Radius = \frac{d}{2}=\frac{0.3302}{2}=0.1651\ m

\omega_f = Final angular velocity = 80\times\frac{2\pi}{60}=8.37758\ rad/s

\omega_i = Initial angular velocity = 0

\alpha = Angular acceleration

t = Time taken = 4.3 s

Equation of rotational motion

\omega_f=\omega_i+\alpha t\\\Rightarrow \alpha=\frac{\omega_f-\omega_i}{t}\\\Rightarrow \alpha=\frac{8.37758-0}{4.3}\\\Rightarrow \alpha=1.94827\ rad/s^2

Tangential acceleration is given by

a_t=r\alpha\\\Rightarrow a_t=0.1651\times 1.94827\\\Rightarrow a_t=0.321659377\ m/s^2

The tangential acceleration of the bug is 0.321659377 m/s²

Tangential velocity is given by

v=r\omega\\\Rightarrow v=0.1651\times 8.37758\\\Rightarrow v=1.383138458\ m/s

The tangential velocity of the bug is 1.383138458 m/s

The tangential acceleration is constant which is 0.321659377 m/s²

Centripetal acceleration is given by

a_c=\frac{a_tt^2}{r}\\\Rightarrow a_c=\frac{0.321659377^2\times 1}{0.1651}\\\Rightarrow a_c=0.62667\ m/s^2

The centripetal acceleration of the bug is 0.62667 m/s²

The resultant of the acceleration gives us total acceleration

a=\sqrt{a_t^2+a_c^2}\\\Rightarrow a=\sqrt{0.321659377^2+0.62667^2}\\\Rightarrow a=0.7044\ m/s^2

Direction is given by

\theta=cos^{-1}\frac{a_c}{a}\\\Rightarrow \theta=cos^{-1}\frac{0.62667}{0.7044}\\\Rightarrow \theta=27.17^{\circ}

The magnitude and direction of the acceleration is 0.7044 m/s² and 27.17°

8 0
3 years ago
How many laws of Newton and who​
nasty-shy [4]

Answer:

The three laws of motion were first compiled by Isaac Newton in his Philosophiæ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), first published in 1687. Newton used them to explain and investigate the motion of many physical objects and systems

5 0
2 years ago
Read 2 more answers
A small office experiences frequent power outages. Users at the location reports that after rebooting their Windows workstations
Katyanochek1 [597]

Answer:

Explanation:

Usually office's networks works using the TCP/IP protocol, this mean that each workstation has an assigned IP. This IP are the directions gave to each computer on the network,

This IP are usually asigned by a DHCP Server. Servers every time a new device connect to the Network, assigns to it an IP, this way every Computer will know how to send or request information from that Computer.

In the TCP/IP protocol is not posibble for two computer to have the same IP. This causes what it call IP Conflict, IP Conflict make imposible the comunications between those devices and the Network.

On Power outages all the Computer are turn off, because of this they disconnect from the Network and need to requests IP one more time to gain comunication,

We this in mind, we can predict that frequent power outages can cause for all the Computer in the Network to request new IPs very frequently this will cause IP Conflict in several units, disconnecting them from the network and making them no longer able to find files on the network. To fix this, what can be done it to establish Static IP to every workstation, this way we they request a new IP, the DHCP Serve will assign them the same IP form every session.

This way, the IP Conficlt can end. Another option is to make the DHCP to assign new IP to every unit one more time, eliminating the machines with same IP.

6 0
3 years ago
I need to write an acrostic poem on Globalisation and i need help. Does anyone have any ideas?
Aleonysh [2.5K]

Answer:

you could talk about the people and say something like change

Explanation:

5 0
3 years ago
Other questions:
  • Your pencil is 11 cm long . How long is it in millimeters?
    7·1 answer
  • If an alveolus with an initial volume of 3 ml of air with a total pressure of 810 mmhg decreases in volume to 1.7 ml, what would
    13·2 answers
  • Why is the solar cycle said to have a period of 22 years, even though the sunspot cycle is only 11 years long?
    13·1 answer
  • A mass of 1.5 kg is attached to a spring and placed on a horizontal surface. The spring has a spring constant of 120 N/m, and th
    13·2 answers
  • List and define 4-5 waste materials from copper ore processing
    10·1 answer
  • A frictionless pendulum clock on the surface of the earth has a period of 1.00 s. On a distant planet, the length of the pendulu
    6·1 answer
  • The masses of blocks A and B in the figure (Figure 1) are 20.0 kg and 10.0 kg, respectively. The blocks are initially at rest on
    9·1 answer
  • Now consider a wave which is paired with seven other waves into seven pairs. The two waves in each pairing are identical, except
    10·1 answer
  • A magnetic hockey puck (0.40 kg) hits another hockey puck (0.40 kg) at rest and both travel together to the right at 8.0 m/s. Ho
    12·2 answers
  • What would happen if the Earth stopped rotating?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!