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
inn [45]
2 years ago
12

Disadvantages of friction

Physics
1 answer:
MrRa [10]2 years ago
7 0
Heat, kinetic energy loss.
You might be interested in
How are wavelength and frequency related for a wave moving at a constant speed?
soldier1979 [14.2K]
Mathematically, to compute for the wavelength, λ,  we have

\lambda = \frac{v}{f}

where v is the velocity and f is the frequency.
As we can see here, given that velocity is constant, wavelength increases as frequency decreases. This shows that wavelength is inversely proportional to frequency. 

Answer: Wavelength and frequency are inversely related to each other.
6 0
2 years ago
A pendulum consists of a 2.0-kg block hanging on a 1.5-m length string. A 10-g bullet moving with a horizontal velocity of 900 m
pav-90 [236]

Answer:

The maximum height above its initial position is:

h_{max}=1.53\: m

Explanation:

Using momentum conservation:

m_{b}v_{ib}=m_{B}v_{fB}+m_{b}v_{fb} (1)

Where:

  • m(b) is the mass of the bullet
  • m(B) is the mass of the block
  • v(ib) is the initial velocity of the bullet
  • v(fb) is the final velocity of the bullet
  • v(fB) is the final velocity of the block

Let's find v(fb) using equation (1)

m_{b}(v_{ib}-v_{fb})=m_{B}v_{fB}

v_{fB}=\frac{m_{b}(v_{ib}-v_{fb})}{m_{B}}

v_{fB}=\frac{0.1(900-300)}{2}

v_{fB}=30\: m/s

We need to find the maximum height, it means that all kinetic energy converts into gravitational potential energy.

\frac{1}{2}m_{B}v_{fB}=m_{B}gh_{max}

h_{max}=\frac{1}{2g}v_{fB}

h_{max}=\frac{1}{2(9.81)}30

h_{max}=1.53\: m

I hope it helps you!

8 0
3 years ago
How long will it take for a car at rest to accelerate at 7m/s^2 to a speed of 45 m/s
Gennadij [26K]
Speed/acceleration = time
45/7
6.4
You have to round the decimal to 6.4
8 0
2 years ago
A light beam travels through a diamond (n=2.42) to pure water (n=1.33). The refracted ray will:
Marrrta [24]

Answer:

b) bend away from the normal

Explanation:

According to snell's law , if i be the angle of incidence and r be the angle of refraction

sin i / sin r = 1.33 / 2.42

sin i / sin r = .55

Hence sin r > sin i

r > i

In other words angle of refraction will be more than angle of incidence . So, the ray will bend away from the normal .

3 0
2 years ago
How much heat is required to heat 0.1 g of ∆hvap =2260 j/g ∆h =340j/g fus iceat−30ctosteamat100c? use the approximate values?
Anestetic [448]
How much heat<span> is </span>required<span> to </span>heat 0.1 g<span> of </span>∆hvap<span> =</span>2260 j/g ∆h<span> =</span>340j/g fus iceat−30 ctosteamat 100c?use<span> the </span>approximate values<span>?</span>
7 0
2 years ago
Other questions:
  • The image shows the path of a ball from the time it’s thrown to the time it lands on the ground. Determine the kind of energy th
    9·1 answer
  • We’re measuring the velocity, so that we can find the change in kinetic energy. Where should you place the photogate to measure
    9·1 answer
  • What is the degree of precision of this ruler?<br> cm
    5·1 answer
  • If you push a book against a wall hard enough it will not slide down even though gravity is pulling it. Use what you know about
    12·1 answer
  • Technician A says that bursting of clutch friction facings is often caused by coasting a truck with the clutch pedal depressed.
    6·1 answer
  • A Go Kart (m = 35 kg) has a top speed of 12 m/s . A student traveling at top speed locks the brake to avoid hitting a bus after
    14·1 answer
  • Please help??!
    6·2 answers
  • Could there ever be a situation where a small sports car could have more inertia than a big bus?​
    7·1 answer
  • 2. Using a giant screw, a crew does 650 J of work to drill a hole into a rock.
    10·2 answers
  • Please help!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!