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
KATRIN_1 [288]
3 years ago
12

Please I need HELP WITH THIS QUESTION!!!

Physics
1 answer:
JulsSmile [24]3 years ago
8 0
Oil, grease and dry lubricants
You might be interested in
A simple pendulum bhas a period of 3.45s when the length of the pendulum is shortened by 1m the period is 2.81s caculate the ori
Bond [772]
Chloe?????????????.......
7 0
2 years ago
Most asteroids lie between the orbits of
Anika [276]
I believe the answer is B. that's where the asetroid belt is.
4 0
3 years ago
Read 2 more answers
A 0.10 kg ball of dough is thrown straight up into the air with an initial speed of 15 m/s.
Reptile [31]
<span>Mass of the ball is m = 0.10kg Initial speed of the Ball v = 15m/s a. When the ball is at maximum height the velocity is 0 Momentum of ball = mass x velocity Momentum = 0.10kg x 0 = 0 b. Getting the maximum height, Using the conservation of energy equation KEinitial = mgh 1/2mVin^2 = mgh => h = v^2/2g h = 15^2/2x9.8 = 11.48m => Half Height h = 5.96m Applying the conservation of energy equation at halfway V^2 = 2gh V = square root of (2x9.8x5.96) => V = square root of (116.816) So the velocity at the half way V = 10.81 m/s Momentum M = m x V => M = 0.10 x 10.81 => M = 1.081kg-m/s</span>
6 0
3 years ago
A car driver traveling at a speed of 108km per hour ,sees a traffic light and stopped after travelling for 20seconds .Find the a
navik [9.2K]

Answer:

– 2.5 m/s²

Explanation:

We have,

• Initial velocity, u = 180 km/h = 50 m/s

• Final velocity, v = 0 m/s (it stops)

• Time taken, t = 20 seconds

We have to find acceleration, a.

\longrightarrow a = (v ― u)/t

\longrightarrow a = (0 – 50)/20 m/s²

\longrightarrow a = –50/20 m/s²

\longrightarrow a = – 5/2 m/s²

\longrightarrow a = – 2.5 m/s² (Velocity is decreasing) [Answer]

6 0
3 years ago
People are constantly being barraged with low-level radiation. Which radiation source below contributes the most low-level radia
Sati [7]

I think the answer is C) Radond

3 0
3 years ago
Read 2 more answers
Other questions:
  • Choose the statement(s) that is/are true about the ratio \frac{C_p}{C_v} C p C v for a gas? (Ii) This ratio is the same for all
    15·1 answer
  • A diagram of the carbon-oxygen cycle is shown below.
    11·2 answers
  • What are 2 different ways you can improve your endurance, muscular strength, flexibility, and body composition before your next
    5·1 answer
  • A boy and his skateboard have a combined mass of 65 kg. What is the speed of the boy and skateboard if they have a momentum of 2
    5·2 answers
  • What it the mass of Jupiter?
    8·2 answers
  • A rope is tied to a tree 4.5 feet from the ground and then run through a pulley hooked to a vehicle 33 feet from the tree. If a
    9·1 answer
  • Which of the following statements is/are true? Check all that apply. A. A potential energy function can be specified for a conse
    5·1 answer
  • When you cut a object does the density same the same between the two objects or no and if no what will happen
    14·1 answer
  • The apparent brightness of stars in general tells us nothing about their distances; we cannot assume that the dimmer stars are f
    11·1 answer
  • The Andromeda Galaxy (our nearest spiral neighbor) has spectral lines that show a blue shift. From this we may conclude that:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!