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
Margaret [11]
3 years ago
6

Can someone help with these?

Physics
1 answer:
Mashutka [201]3 years ago
5 0

Five

<u>Givens</u>

B = 18 m

Theta = 112o

<u>Solve</u>

By = 18*sin(112) = 16.68

Bx = 18*cos(112) = -6.74

The answer is D

Seven

theta = - 40o It's going clockwise. You just put the angle in your calculator as -40o

By = 15*sin(-40) = -9.64

Bx = 15*con(-40) = 11.48

Answer: A

Eight.

I'm going to answer this one as it is written.

Fx = F * cos(37)

Fx = 20N * cos(37)

Fx = 15.87 N The answer is A.

Fy is not calculated for this because Fy pulls Rover up. He's not going to like that very much. You have to know this when you are walking your dog and you pull him up at an angle. Part of what you are doing is choking him for no good purpose. That's part of the physics of everyday living.



You might be interested in
Two identical cars, one on the moon and one on the earth, have the same speed and are rounding banked turns that have the same r
Naily [24]

Answer:

The value of the centripetal forces are same.

Explanation:

Given:

The masses of the cars are same. The radii of the banked paths are same. The weight of an object on the moon is about one sixth of its weight on earth.

The expression for centripetal force is given by,

F_{c} = \dfrac{mv^{2}}{r}

where, m is the mass of the object, v is the velocity of the object and r is the radius of the path.

The value of the centripetal force depends on the mass of the object, not on its weight.

As both on moon and earth the velocity of the cars and the radii of the paths are same, so the centripetal forces are the same.

3 0
3 years ago
Which statement best summarizes the central idea of “Applications of Newton’s Laws”?
Shkiper50 [21]

 

Newton's three forces, normal, tension and friction, are present in a surprising number of physical situations

Newton's Laws, that describe the relationship between an obejct and the forces acting upon it, apply in almost every physical situation, from quantum mechanics to electricity.

The correct answer is:

Newton’s laws can explain the forces that occur between objects every day


3 0
4 years ago
Read 2 more answers
What is the pressure 100m below the surface of the sea , if the density of sea water is 1150kg/m3
Olin [163]
The pressure at 100 meters below the surface of sea water with a density of 1150kg is 145.96 psi.
4 0
3 years ago
Suppose you pour water into a container until it reaches a depth of 21 cm. next, you carefully pour in a 11-cm thickness of oliv
ipn [44]
<span>3040. Pascals. The density of olive oil is 0.911 g/cm^3 and the density of water is 1.000 g/cm^3. To calculate the pressure of 1 cm of water, 1000 kg/m^3 * 9.8 m/s^2 * 0.01 m = 98.000 Pa To calculate the pressure of 1 cm of olive oil 911 kg/m^3 * 9.8 m/s^2 * 0.01 m = 89.278 Pa Now to calculate the pressure at the bottom of the container, simply add the products of how many cm of each fluid you have. So 21 * 98.000 Pa + 11 * 89.278 Pa = 2058 Pa + 982.058 Pa = 3040.058 Pa So the pressure at the bottom of the container will be 3040. Pascals.</span>
8 0
3 years ago
You are standing on the ground. Describe two ways that you could increase the pressure between your feet and the ground.
ch4aika [34]

Answer:

1:by standing with one feet

2:by standing with your toes

Explanation:

1: by standing with one feet

2:by standing with ur toes

Pressure is inversely proportional to area, the little the area, the more the pressure.the bigger the area,the lesser the pressure

3 0
4 years ago
Other questions:
  • How much have jellyfish populated since 2015?
    14·2 answers
  • The largest stars are _____ times the mass of the Sun. 100 10,000 10 1,000The largest stars are _____ times the mass of the Sun.
    11·1 answer
  • Find the equivalent resistance of this parallel circuit with two strands.
    11·1 answer
  • A student wishes to investigate how the material of which an object is made affects how the object changes temperature. The stud
    12·1 answer
  • Which layer(s) of Earth participate(s) in plate tectonics? Select all that apply.
    11·2 answers
  • The diagram shows two charged objects, X and Y.
    15·2 answers
  • A girl delivering newspapers covers her route by traveling 3.00 blocks west, 4.00 blocks north, and then 6.00 blocks east. What
    8·1 answer
  • What’s up world or people
    7·1 answer
  • Why does the arrow labeled F norm point upward?
    15·2 answers
  • A proton moves a distance 10 cm in a uniform electric field of 3.5 kN C, in the direction of the field.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!