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
Tom [10]
3 years ago
10

A tractor pulls a 978 kg wagon at a velocity of 4.9 m/s. How many watts of power are exerted by the tractor motor is the tractor

pulls the wagon at a 60 degree angle?
Physics
1 answer:
Alenkinab [10]3 years ago
7 0

Answer:

23481.78 W

Explanation:

The computation of number of watts of power is shown below:

M = 978 kg

V = 4.9 m/s

Theeta = 60°

As we know that  

 P = Fcos(theeta).V

F = Mg

P = (Mg)cos(theeta).V

P = 978×9.8×cos(60)×4.9

P = 23481.78 W

You might be interested in
At the time of the founding of the country, most Americans worked as
STatiana [176]

Answer:

Farmers

Explanation:

At the time of founding our country most soldiers in the revolutionary war were farmers who were inexperienced.

4 0
2 years ago
Read 2 more answers
How much do a steel BB weight?
pychu [463]
Each BB 0.349 grams and 5.386 grains. 349 mg & 5.386 grains each steel BBs.
6 0
3 years ago
A Carnot engine has a power output of 150 kW. The engine operates between two reservoirs at 20.0°C and 500°
Nookie1986 [14]
Efficiency η of a Carnot engine is defined to be: 
<span>η = 1 - Tc / Th = (Th - Tc) / Th </span>
<span>where </span>
<span>Tc is the absolute temperature of the cold reservoir, and </span>
<span>Th is the absolute temperature of the hot reservoir. </span>

<span>In this case, given is η=22% and Th - Tc = 75K </span>
<span>Notice that although temperature difference is given in °C it has same numerical value in Kelvins because magnitude of the degree Celsius is exactly equal to that of the Kelvin (the difference between two scales is only in their starting points). </span>

<span>Th = (Th - Tc) / η </span>
<span>Th = 75 / 0.22 = 341 K (rounded to closest number) </span>
<span>Tc = Th - 75 = 266 K </span>

<span>Lower temperature is Tc = 266 K </span>
<span>Higher temperature is Th = 341 K</span>
8 0
3 years ago
Read 2 more answers
A ball of mass 0.35 kg hangs straight down on a string of length 13 cm. It is then swung upward, keeping the string taut, until
Anni [7]

Answer:

PE=0.29J

Explanation:

According to the description, there is a angle and in point swung upward of 70°

So,

Y=13*10^{-2}*cos(70) \\Y=0.0444m

Appling the equation of Potential Energy we have,

PE=mgh\\PE=(0.35)(9.8)(0.13-0.0444)\\PE=0.29J

6 0
3 years ago
Cuando habla una persona, ¿por qué identificas que se trata de un hombre,una mujer o un niño​
Lubov Fominskaja [6]

Answer:

Lo ases por su voz

Explanation:

Creo ,,,,,,

4 0
2 years ago
Other questions:
  • Suppose that it takes 0.6 seconds for a mass on a spring to move from its highest position to its lowest position. What is the p
    12·1 answer
  • Which graph shows an object that is dropped?
    15·1 answer
  • Calculate the momentum of a 953kg elephant running at a rate of 3.85 m/s.
    8·1 answer
  • Suppose that a 1000 kg car is traveling at 25 m/s. Its brakes can apply a force of 5000N. What is the minimum distance required
    9·1 answer
  • An L-R-C series circuit is constructed using a 175Ω resistor, a 12.5μF capacitor, and an 8.00-mH inductor, all connected across
    14·1 answer
  • Two sound waves W1 and W2, of the same wavelength interfere destructively at point P. The waves originate from two in phase spea
    14·1 answer
  • Van finds a metamorphic rock as he is exploring a small ravine near his house. Metamorphic rock is a type of rock that has gone
    15·2 answers
  • Four pairs of objects have the masses as described below, along with the distances between
    7·1 answer
  • which best describes the difference between speed and velocity? A) velocity is instantaneous ,B) speed is a vector quantity
    14·1 answer
  • A large glass marble is added to the displacement can. 20 3 of water overflows into a beaker, and the displacement can now has a
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!