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
Luba_88 [7]
2 years ago
12

A block rests on a 15.0° incline. If the block weighs 70. N, what is the normal force on the block?

Physics
1 answer:
MissTica2 years ago
3 0

The normal force on the block at the given inclined plane is 67.61 N.

The given parameters:

  • Inclination of the plane, θ =  15.0°
  • Weight of the block, W = 70 N

<h3>What is Normal force?</h3>

The normal force on object is the upward force on the object due to its weight acting downwards.

The normal force on the block is calculated as follows;

Fₙ = mgcosθ

Fₙ = Wcosθ

Fₙ = 70 x cos(15)

Fₙ = 67.61 N

Thus, the normal force on the block at the given inclined plane is 67.61 N.

Learn more about normal force here: brainly.com/question/14486416

You might be interested in
Read the given list of organisms.
Nadya [2.5K]
They are all herbivores
3 0
2 years ago
Read 2 more answers
A 5.00 kilogram block slides along a horizontal,frictionless surface at 10.0 meters per second. for 4.00 seconds. The magnitude
finlep [7]
In this question a lot of information's are provided. Among the information's provided one information and that is the time of 4 seconds is not required for calculating the answer. Only the other information's are required.
Mass of the block that is sliding = 5.00 kg
Distance for which the block slides = 10 meters/second
Then we already know that
Momentum = Mass * Distance travelled
                   = (5 * 10) Kg m/s
                   = 50 kg m/s
So the magnitude of the blocks momentum is 50 kg m/s. The correct option among all the given options is option "b".
5 0
3 years ago
Sue and Jenny kick a soccer ball at exactly the same time. Sue’s foot exerts a force of 75.9 N to the north. Jenny’s foot exerts
Lady_Fox [76]

Answer:

Fr^2 = 75.9N+105.8N=181.7

<u><em>Fr = </em></u><u><em>181.7N.</em></u>

6 0
2 years ago
g An electron enters a region of space containing a uniform 1.63 × 10 − 5 T magnetic field. Its speed is 121 m/s and it enters p
kolbaska11 [484]

Answer:

i. The radius 'r' of the electron's path is 4.23 × 10^{-5} m.

ii. The frequency 'f' of the motion is 455.44 KHz.

Explanation:

The radius 'r' of the electron's path is called a gyroradius. Gyroradius is the radius of the circular motion of a charged particle in the presence of a uniform magnetic field.

                 r = \frac{mv}{qB}

Where: B is the strength magnetic field, q is the charge, v is its velocity and m is the mass of the particle.

From the question, B = 1.63 × 10^{-5}T, v = 121 m/s, Θ = 90^{0} (since it enters perpendicularly to the field), q = e  = 1.6 × 10^{-19}C and m = 9.11 × 10^{-31}Kg.

Thus,

         r = \frac{mv}{qB} ÷ sinΘ

But,  sinΘ =  sin 90^{0} = 1.

So that;

          r = \frac{mv}{qB}

            = (9.11 × 10^{-31} × 121) ÷ (1.6 × 10^{-19}  × 1.63 × 10^{-5})

            = 1.10231 × 10^{-28}   ÷ 2.608 × 10^{-24}

            = 4.2266 × 10^{-5}

            = 4.23 × 10^{-5} m

The radius 'r' of the electron's path is 4.23 × 10^{-5} m.

B. The frequency 'f' of the motion is called cyclotron frequency;

           f = \frac{qB}{2\pi m}

             =  (1.6 × 10^{-19}  × 1.63 × 10^{-5}) ÷ (2 ×\frac{22}{7} × 9.11 × 10^{-31})

             =  2.608 × 10^{-24} ÷  5.7263 × 10^{-30}

             = 455442.4323

          f  = 455.44 KHz

The frequency 'f' of the motion is 455.44 KHz.

3 0
3 years ago
Read 2 more answers
A +6.33 uC charge q1 is attracted by a force of 0.115 N to a second charge q2 that is 1.44 m away. What is the value of q2?
jarptica [38.1K]

Answer:-4.1858

Explanation: I hate Acellus

7 0
2 years ago
Other questions:
  • List three devices that use electric current from batteries and three that use regular house current.
    14·1 answer
  • What are the different type of insulators in a torch?
    12·1 answer
  • Which units are used to express kinetic energy
    6·2 answers
  • A wheel rotates without friction about a stationary horizontal axis at the center of the wheel. A constant tangential force equa
    9·1 answer
  • A (Blank) supplies energy to move electricity through a circuit
    7·1 answer
  • The source of all magnetism is. A. tiny pieces of iron. B. tiny domains of aligned atoms. C. Ferromagnetic materials. D. moving
    6·2 answers
  • A bullet is fired through a board, 14.0 cm thick, with its line of motion perpendicular to the face of the board. If it enters w
    7·1 answer
  • An ideal monatomic gas at temperature T is held in a container. If the gas is compressed isothermally, that is at constant tempe
    8·1 answer
  • A police car is moving to the left at 34m/sec while its siren is emitting a 600Hz tone. What tone would you hear if you were par
    13·1 answer
  • a car decelerates at a rate of 2.0 m/s^2 and comes to a complete stop after traveling 25 m. What was the speed of the car right
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!