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
Arte-miy333 [17]
3 years ago
6

Matthew is waterskiing. As the boat starts moving, he is at an angle of 8.0° to the right of the boat. The boat applies 250 newt

ons over the first
50 meters, while the angle stays at roughly 8.0°. What work has the boat done on Matthew
A 1.0 x 104 joules
B. 1.2 x 104 joules
C 1.4 x 10^ joules
D. 1.7 x 10^ joules
Physics
1 answer:
Citrus2011 [14]3 years ago
5 0

The work done is B. 1.2\cdot 10^4 J

Explanation:

The work done by a force on an object is given by

W=Fd cos \theta

where

F is the magnitude of the force

d is the displacement of the object

\theta is the angle between the direction of the force and of the displacement

For the boat in this problem, we have:

F = 250 N (force applied)

d = 50 m (displacement)

\theta=8.0^{\circ}

Substituting, we find the work done:

W=(250)(50)(cos 8^{\circ})=1.2\cdot 10^4 J

Learn more about work:

brainly.com/question/6763771

brainly.com/question/6443626

#LearnwithBrainly

You might be interested in
The depth of the liquid is 10 cm and the radius of the cylinder is 3.0 cm. The weight of
denpristay [2]
By using the formula density(p)= mass(kg)/volume(m^3) and gravitational acceleration (g)
Mass=2.5N/9.8m/s^2=0.26kg
Volume=0.1x 0.03^2 x3.142=0.009m^3
Density=28.89kg/m^-3
8 0
3 years ago
Consider the electric field lines shown in the diagram below. From the diagram, it is apparent that object A is ____ and object
Mariana [72]
Positive charge you gave the lines pointing away, negative charge is pointing toward. Don’t have a photo so I can’t fill in the blanks BUT I can tell you the logic
6 0
2 years ago
Help me, 100 points to answer right, answer without context will be reported
dlinn [17]
734 is the answer for the chronic blood exchange service of new france
7 0
2 years ago
A boxer punches a sheet of paper in midair and brings it from rest up to a speed of 30 m/s in 0.060 s .
zimovet [89]

Answer:

Force exerted, F = 1.5 N

Explanation:

It is given that, a boxer punches a sheet of paper in midair and brings it from rest up to a speed of 30 m/s in 0.060 s.

i.e. u = 0

v = 30 m/s

Time taken, t = 0.06 s

Mass of the paper, m = 0.003 kg

We need to find the force the boxer exert on it. The force can be calculated using second law of motion as :

F=m\times a

F=m\times (\dfrac{v-u}{t})

F=0.003\times (\dfrac{30}{0.06})

F = 1.5 N

So, the force the boxer exert on the paper is 1.5 N. Hence, this is the required solution.

6 0
3 years ago
By what factor will the Electrostatic Force between two charged objects change when the amount of charge on both objects doubles
Mademuasel [1]

Answer:

F' = (4/9)F

Explanation:

The electrostatic force between two charged objects is given by Coulomb's Law:

F = kq₁q₂/r²   -------------------- equation (1)

where,

F = Electrostatic Force

k = Coulomb's Constant

q₁ = magnitude of first charge

q₂ = magnitude of second charge

r = distance between charges

Now, when the charges and distance altered as follows:

q₁' = 2q₁

q₂' = 2q₂

r' = 3r

Then,

F' = kq₁'q₂'/r'²

F' = k(2q₁)(2q₂)/(3r)²

F' = (4/9)kq₁q₂/r²

using equation (1):

<u>F' = (4/9)F</u>

7 0
3 years ago
Other questions:
  • Unpolarized light with intensity I0I0I_0 is incident on an ideal polarizing filter. The emerging light strikes a second ideal po
    10·1 answer
  • A ray of light strikes a smooth surface and is reflected. The angle of incidence is 35°. What can be predicted about the angle o
    14·2 answers
  • 7. The first American to go into outer space was a monkey.<br> a. True<br> b. False
    13·2 answers
  • What can be used to describe the quantitative data
    5·1 answer
  • What is planetary transit
    9·2 answers
  • What is the direction of the electric field at the dot??
    7·1 answer
  • The acceleration due to gravity is lower on the Moon than on Earth. Which one of the following statements is true about the mass
    11·2 answers
  • Spaceship 1 and Spaceship 2 have equal masses of 200 kg. Spaceship 1 has a speed of 0 m/s, and Spaceship 2 has a speed of 6 m/s.
    6·1 answer
  • How do objects at rest and in motion respond in the presence of an external, unbalanced force?
    13·1 answer
  • The<br> of an object shows how fast the object is moving at a specific
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!