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
DedPeter [7]
3 years ago
6

A 4.04 kg block slides down a smooth, frictionless plane having an inclination of 30◦. The acceleration of gravity is 9.8 m/s^2.

The acceleration of the plane is 4.9
What is the magnitude of the perpendicular force that the block exerts on the surface of the plane at a distance of 2.37 m down the incline?
Answer in units of N.
Physics
1 answer:
aleksandrvk [35]3 years ago
5 0

Answer:

Explanation:

What a lot of words to solve such a simple problem! The perpendicular force is the one that is pushing straight down on the plane. There is no side to side movement here or friction acting on this dimension at all. Perpendicular force is the same as the weight of the block. That's it! Perpendicular force is also normal force which is the same thing as weight:

w = mg so

w = (4.04)(9.8) and

w = 4.0 × 10¹ N

You might be interested in
A plastic tube allows a flow of 12.9 cm°/s of
VARVARA [1.3K]

Answer:

It will take 17.5968 s  to fill a bottle with water.

Explanation:

Total capacity of tube =227 cm.

Rate of full up the water in the tube =12.9 $\mathrm{cm}^{\circ} / \mathrm{s}$

Total full up the tube = rate \times time

T=r \times t

227 \mathrm{~cm}$$=12.9 \mathrm{~cm}^{\circ} / \mathrm{s} \times t

t=\frac{227}{12.9}

=17.5968s

Learn more about seconds, refer :

brainly.com/question/1781825

6 0
3 years ago
What is the angle of refraction when a ray of light passes frm ethanol to air
77julia77 [94]

Answer: Your answer is<u> 1.36.</u>

Hope this helps!

5 0
3 years ago
What condition is necessary for two bodies that are in physical contact with each other to be in thermal equilibrium?
Korvikt [17]
<span>for two bodies that are in physical contact with each other to be in thermal equilibrium the condition is that they require the same temperature and they no longer effect each other temperature
hope it helps</span>
3 0
3 years ago
Why do things cling in magnets
Ber [7]

A magnet is any object that has a magnetic field. It attracts ferrous objects like pieces of iron, steel, nickel and cobalt. In the early days, the Greeks observed that the naturally occurring 'lodestone' attracted iron pieces. From that day onwards began the journey into the discovery of magnets.

These days magnets are made artificially in various shapes and sizes depending on their use. One of the most common magnets - the bar magnet - is a long, rectangular bar of uniform cross-section that attracts pieces of ferrous objects. The magnetic compass needle is also commonly used. The compass needle is a tiny magnet which is free to move horizontally on a pivot. One end of the compass needle points in the North direction and the other end points in the South direction.

The end of a freely pivoted magnet will always point in the North-South direction. The end that points in the North is called the North Pole of the magnet and the end that points South is called the South Pole of the magnet. It has been proven by experiments that like magnetic poles repel each other whereas unlike poles attract each other.

3 0
4 years ago
A soccerball is kicked straight out from a hill at 15 m/s and lands 42m away. how tall is the hill
ozzi

Answer:

The height of the hill is, h = 38.42 m

Explanation:

Given,

The horizontal velocity of the soccer ball, Vx = 15 m/s

The range of the soccer ball, s = 42 m

The projectile projected from a height is given by the formula

                             S = Vx [Vy + √(Vy² + 2gh)] / g

Therefore,

                            h = S²g/2Vx²                     (Since Vy = 0)

Substituting the values

                             h = 42² x 9.8/ (2 x 15²)

                                = 38.42 m

Hence, the height of the hill is, h = 38.42 m

4 0
4 years ago
Other questions:
  • An ion with charge of Q = +3.2 x 10-19 C is in a region where a uniform electric field of magnitude E = 5.0 X 105 V/m is perpend
    7·1 answer
  • Which type of energy is the greatest at the bottom of a roller coaster hill? A) Potential Energy B) Thermal Energy Eliminate C)
    12·1 answer
  • Which of the following planets most likely has the coldest surface temperature?
    9·1 answer
  • A spectroscope creates a spectrum, or array of colors, based on the light emitted by a star. How are
    9·1 answer
  • How long will it take a 500 watt electric motor to do 1.5 x10^5 j of work
    12·1 answer
  • What does the 2 mean in the formula 5Mg3(PO4)2?
    12·1 answer
  • Which statement correctly describes the relationship between frequency and wavelength?
    12·2 answers
  • Two pure tones are sounded together. The drawing shows the pressure variations of the two sound waves, measured with respect to
    11·1 answer
  • Two magnets are held apart. Once released, the south pole of one magnet moves toward the north pole of another magnet until the
    5·1 answer
  • A plane is traveling at 250 m/s north after being in the air for 1 hour, what is the displacement?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!