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
-Dominant- [34]
3 years ago
10

A block is pulled along a horizontal surface at a constant speed by a force (14.1i 0 j 5.1k). The direction k is perpendicular t

o the surface. The block moves 6 m. How much work, in N m, does the force do?
Physics
1 answer:
Pepsi [2]3 years ago
7 0

Answer:

W =84.6\ Nm

Explanation:

given,

F = 14.1 i + 0 j + 5.1 k

displacement = 6 m

Assuming block is moving in x- direction

we know,

 dW = F dx

\int dW = F\int dx

W = F\int_0^6 dx

W = F[x]_0^6

W = 14.1 \times 6

W =84.6\ Nm

hence, work done by the force is equal to W =84.6\ Nm

You might be interested in
Enem 2003 embalagens longa vida brick​
tresset_1 [31]

Answer:

Jyftfufhfucyf fyfycyxycydyd

Explanation:

Ufivucjvk

3 0
3 years ago
A spring-loaded gun can fire a projectile to a height h if it is fired straight up. if the same gun is pointed at an angle of 45
Naily [24]
When firing straight up:
v^2 = u^2 - 2gh, where v = final velocity = 0, u = initial velocity, g = gravitational acceleration, h = maximum height attained.

Then,
0 = u^2 - 2gh
u = Sqrt (2gh) ---- (1)

When firing at 45°,
Initial velocity, U = u Sin 45 = Sqrt (2gh)·Sin 45

Maximum height, H = U^2*(Sin Ф)^2/2g

substituting;
H = [Sqrt (2gh)·Sin 45]^2*(Sin 45)^2]/2g
H = [2gh*(Sin 45)^2*(Sin 45)^2]/2g
H = [h*(Sin 45)^4] = h/4

Therefore, maximum height when the gun fires at 45° is a quarter of maximum height when the gun fires vertically up.
6 0
3 years ago
What common household substances can turn blue litmus paper red?
Reil [10]
There is a few things. The things that turn it red is acids.

Properties of acids include:
*Tasting sour
*Conduct electricity
*Corrosive

A few household acids would be lemons, vinegar, salt, and some sodas.
5 0
3 years ago
Do electrons have more room to move along a thick or thin wire?
PolarNik [594]

Answer:

Got it from g00gle: Similarly, electrons flow more easily through a thick wire than they flow through a thin wire of the same material. Resistance is greater in a longer wire because the charges travel farther. As temperature increases, a metal's resistance increases because electrons collide more often.

Explanation:

3 0
3 years ago
The first few steps in deriving the quadratic formula are shown. Which best explains why is not added to the left side of the eq
bija089 [108]
The term b^2 / 4a^2 is not added to the left side of the equation, because the term that was added to the right was not either b^2 / 4 a^2.

As you can see the ther b^2 / 4a^2 that appears in the last step of the table is inside a parenthesis, which is preceded by factor a.


Then, you need to apply the distributive property to know the term that you are really adding to the right side,  i.e. you need to mulitply b^2 / 4a^2 * a which is b^2 / 4a.


That means that you are really adding b^2 / 4a to the right, so that is the same that you have to add to the left, which is what the last step of the table shows.


That situation is reflected by the statement "<span>The distributive property needs to be applied to determine the value to add to the left side of the equation to balance the sides of the equation".</span>  That is the answer.
6 0
3 years ago
Read 2 more answers
Other questions:
  • How did rutherfords discovery effect the model of the atom
    11·1 answer
  • Which of the following is true of genes?
    9·1 answer
  • Formula One race cars are capable of remarkable accelerations when speeding up, slowing down, and turning corners. At one track,
    10·1 answer
  • An apple weighs at 1N. the net force on the apple when it is in free fall is?
    11·1 answer
  • Calculate (A⃗ ×B⃗ )⋅C⃗ for the three vectors A⃗ with magnitude A = 4.86 and angle θA = 23.5 ∘ measured in the sense from the +x
    13·1 answer
  • The half-life of the reaction gets shorter as the initial concentration is increased. True or False
    7·1 answer
  • Question: The stored energy that holds the protons and neutrons together inside an atom is
    10·2 answers
  • A 27-g steel-jacketed bullet is fired with a velocity of 640 m/s toward a steel plate and ricochets along path CD with a velocit
    13·1 answer
  • If a 40,000g cannon ball is 35m above the Earth's surface, how much potential energy does the cannon
    8·1 answer
  • Please help, it's an exam ://
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!