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
Georgia [21]
3 years ago
9

A truck travels up a hill with a 5.4° incline. The truck has a constant speed of 25 m/s. What is the horizontal component of the

truck’s velocity?
What is the vertical component of the truck’s velocity?
Answer in units of m/s.
Physics
1 answer:
goldenfox [79]3 years ago
8 0

Answer:

v_{x}=24.88m/s

v_{y}=2.35m/s

Explanation:

Knowing that the truck travels up a hill with a 5.4º incline

The horizontal component of the truck's velocity is:

v_{x}=vcos\beta=(25m/s)cos(5.4)=24.88m/s

The vertical component of the truck's velocity is:

v_{y}=vsin\beta=(25m/s)sin(5.4)=2.35m/s

You might be interested in
Which of the following is a good conductor of heat? 1. water 2. glass 3. wood 4. mercury​
trapecia [35]

Answer:

So the answer would be water based on the evidence shown below.

Explanation:

Mercury is a poor conductor of heat but good for electricity, water is a good conductor of heat but a poor conductor of electricity, wood is a poor conductor of heat and electricity, and glass is probably the worst conductor of heat.

7 0
3 years ago
A pin fin of uniform, cross-sectional area is fabricated of an aluminum alloy (k = 160 W/m-K). The fin diameter is D = 4 mm, and
frozen [14]

Answer:

Given that

D= 4 mm

K = 160 W/m-K

h=h = 220 W/m²-K

ηf = 0.65

We know that

m=\sqrt{\dfrac{hP}{KA}}

For circular fin

m=\sqrt{\dfrac{4h}{KD}}

m=\sqrt{\dfrac{4\times 220}{160\times 0.004}}

m = 37.08

\eta_f=\dfrac{tanhmL}{mL}

0.65=\dfrac{tanh37.08L}{37.08L}

By solving above equation we get

L= 36.18 mm

The effectiveness for circular fin given as

\varepsilon =\dfrac{2\ tanhmL}{\sqrt{\dfrac{hD}{K}}}

\varepsilon =\dfrac{2\ tanh(37.08\times 0.03618)}{\sqrt{\dfrac{220\times 0.004}{160}}}

ε = 23.52

5 0
2 years ago
Read 2 more answers
How is gamma rays used to transfer energy?
expeople1 [14]
Gamma ray<span> (also called </span>gamma radiation<span>), denoted by the lower-case Greek letter </span>gamma,<span> is penetrating </span>electromagnetic radiation<span> of a kind arising from the </span>radioactive decay<span> of </span>atomic nuclei<span>. It consists of </span>photons<span> in the highest observed range of </span>photon energy<span>. </span>
6 0
3 years ago
How long does it take the projectile to reach its highest point in its trajectory?​
NeTakaya

Answer:

It takes about 88 seconds for the cannonball to reach its maximum height (ignoring air resistance).

Explanation:

3 0
3 years ago
What is the law of inertia? Give an example of inertia in action.
belka [17]
Answer

Inertia is the resistance of any physical object to any change in its velocity. This includes changes to the object's speed, or direction of motion. An aspect of this property is the tendency of objects to keep moving in a straight line at a constant speed, when no forces act upon them.
3 0
2 years ago
Read 2 more answers
Other questions:
  • if you divide a force measured in newtons by a speed measured in in meters per second in what units will the answer be expressed
    11·1 answer
  • What were the key factors that made the wright brothers’ wind tunnel a useful tool for wing design?
    5·2 answers
  • The purpose of antilock brake systems is to prevent the brakes from becoming locked.Choose one True False
    9·1 answer
  • Explain How people can achieve an environmentally sustainable society .
    7·1 answer
  • This is a machine that converts electrical energy into mechanical energy.
    6·1 answer
  • Is there ever a situation where an ant will have more momentum than an elephant? Explain why or why not?
    8·2 answers
  • A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually increases, the turbine experi
    10·1 answer
  • Suppose that 2 J of work is needed to stretch a spring from its natural length of 34 cm to a length of 46 cm. (a) How much work
    15·1 answer
  • 11. (a)What downward force is acting on you when you go down a waterslide? (b)What type of friction is
    11·1 answer
  • For an object like a planet, with a typical temperature of a few hundred kelvin, what kind of blackbody radiation would it princ
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!