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
WINSTONCH [101]
3 years ago
12

Jaime lifts a package weighing 75N. if she lifts it 1.2 m, what work has she done

Physics
1 answer:
9966 [12]3 years ago
6 0
Answer:
90 J
Explanation:
W=fd
W=(75)(1.2)
W= 90 J
You might be interested in
write an essay about "the importance of knowing the fluids" / the importance of fluid knowledge dunno exactly. Plz help
Gala2k [10]
DRINK ALOT  of fluid is the anwser
6 0
3 years ago
A car is moving from rest and the velocity increases to 30 m/s in 4 seconds. Calculate its acceleration.
vaieri [72.5K]

Answer:

7.5 m/s²

Explanation:

Given:

v₀ = 0 m/s

v = 30 m/s

t = 4 s

Find: a

v = at + v₀

(30 m/s) = a (4 s) + (0 m/s)

a = 7.5 m/s²

8 0
3 years ago
When you are ice skating, to get started, you push your skate backwards on the ice and, as a result, begin to move forward. Whic
Setler79 [48]
I would say the third... force. 

3 0
3 years ago
Read 2 more answers
Which term is defined as a change in an object's position relative to a reference point?
Gre4nikov [31]
The answer would be REFERENCE POINT
4 0
3 years ago
Read 2 more answers
A force of 5N and a force of 8N act to the same point and are inclined at 45degree to each other. Find the magnitude and directi
Alex_Xolod [135]
  • Magnitude: 12.1 N.
  • Direction: 17.0° to the 8 N force.
<h3>Explanation</h3>

Refer to the diagram attached (created with GeoGebra). Consider the 5 N force in two directions: parallel to the 8 N force and normal to the 8 N force.

  • \displaystyle F_{\text{1, Parallel}} = F_1 \cdot \cos{45^\textdegree} = \dfrac{5\sqrt{2}}{2}\;\text{N}.
  • \displaystyle F_{\text{1, Normal}} = F_1 \cdot \sin{45^\textdegree} = \dfrac{5\sqrt{2}}{2}\;\text{N}.

The sum of forces on each direction will be the resultant force on that direction:

  • Resultant force parallel to the 8 N force: (8 + \dfrac{5\sqrt{2}}{2})\;\text{N}.
  • Resultant force normal to the 8 N force: \dfrac{5\sqrt{2}}{2}\;\text{N}.

Apply the Pythagorean Theorem to find the magnitude of the resultant force.

\displaystyle \Sigma F = \sqrt{{(8 + \dfrac{5\sqrt{2}}{2})}^2 + {(\dfrac{5\sqrt{2}}{2})}^2} = 12.1\;\text{N} (3 sig. fig.).

The size of the angle between the resultant force and the 8 N force can be found from the tangent value of the angle. Tangent of the angle:

\displaystyle \dfrac{\Sigma F_\text{Normal}}{\Sigma F_\text{Parallel}} = \dfrac{8 + \dfrac{5\sqrt{2}}{2}}{\dfrac{5\sqrt{2}}{2}} \approx 0.306491.

Find the size of the angle using inverse tangent:

\displaystyle \arctan{ \dfrac{\Sigma F_\text{Normal}}{\Sigma F_\text{Parallel}}} = \arctan{0.306491} = 17.0\textdegree.

In other words, the resultant force is 17.0° relative to the 8 N force.

4 0
3 years ago
Other questions:
  • A sphere of radius R = 0.295 m and uniform charge density -151 nC/m^3 lies at the center of a spherical, conducting shell of inn
    12·1 answer
  • What is the voltage in a circuit if the current is 6.2 A and the resistance is 18 ohms?
    13·1 answer
  • How do you find potienal energy
    10·1 answer
  • What is the electric power used by an appliance if the current is 2 A and the voltage is 50 volts? Show work and include all uni
    11·1 answer
  • Complete these sentences. If a bouncing ball has a total energy of 20 J and a kinetic energy of 5 J, the ball’s potential energy
    9·2 answers
  • A water molecule consists of two hydrogen atoms bonded with one oxygen atom. The bond angle between the two hydrogen atoms is 10
    5·1 answer
  • What do scientist need to look at before developing
    15·1 answer
  • A mole is __________ x 1023 objects.
    14·2 answers
  • What location on earth that is directly hit by the light during a summer solstice?
    13·1 answer
  • A 190 g air-track glider is attached to a spring. The glider is pushed in 8.6 cm against the spring, then released. A student wi
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!