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
soldier1979 [14.2K]
3 years ago
6

Can someone please help me? Will give brainliest.

Physics
2 answers:
lora16 [44]3 years ago
5 0
Needs are less than resources, and the population increases.
Soloha48 [4]3 years ago
3 0
Needs are less than resources
You might be interested in
A convex mirror, like the passenger-side rearview mirror on a car, has a focal length of -3.0 m . An object is 6.0 m from the mi
Artist 52 [7]

A) -2.0 m

Look at the ray diagram attached in the picture, where:

p identifies the location of the object

q identifies the location of the image

F identifies the focus of the mirror

Each tick represents 1 m

We have

p = 6.0 m is the distance of the object from the mirror

f = -3.0 m is the focal length

From the ray diagram, we see that q has a distance of 2.0 m from the mirror, and it's on the other side of the mirror compared to the object, so

q = -2.0 m

This can also be verified by using the mirror equation:

\frac{1}{q}=\frac{1}{f}-\frac{1}{p}=\frac{1}{-3.0 m}-\frac{1}{6.0 m}=-\frac{3}{6.0 cm}\\q = \frac{-6.0 cm}{3}=-2.0 cm

B) Upright and virtual

As we see from the picture, the image is upright, since it has same orientation as the object.

Also, we notice that the image is on the other side of the mirror, compared to the object. For a mirror,

- An image is said to be real if it is on the same side of the object

- An image is said to be virtual if it is on the opposite side of the mirror

Therefore, this means that the image is virtual.

8 0
3 years ago
Describe electric potential energy
nirvana33 [79]
Is potential energy that results from conservative Coulomb forces and is associated with the configuration of a particular set of point charges within a defined system
3 0
3 years ago
Two wheels with fixed hubs and radii 0.51 m and 1.9 m, each having a mass of 3 kg, start from rest. Forces 5 N and F2 are applie
Katarina [22]

Answer:

18.63 N

Explanation:

Assuming that the sum of torques are equal

Στ = Iα

First wheel

Στ = 5 * 0.51 = 3 * (0.51)² * α

On making α subject of formula, we have

α = 2.55 / 0.7803

α = 3.27

If we make the α of each one equal to each other so that

5 / (3 * 0.51) = F2 / (3 * 1.9)

solve for F2 by making F2 the subject of the formula, we have

F2 = (3 * 1.9 * 5) / (3 * 0.51)

F2 = 28.5 / 1.53

F2 = 18.63 N

Therefore, the force F2 has to 18.63 N in order to impart the same angular acceleration to each wheel.

3 0
3 years ago
How long does it take for a Ford Econoline van moving at 39.5 m/s to travel 600 m?
Andrej [43]

Answer: B. 15.2s

Explanation: 600/39.5 = about 15.2

6 0
4 years ago
a moving ball rolls into a stationary ball. the total momentum of both balls after the collision will be
rosijanka [135]
The momentum of the rolling ball will have less momentum than before the collision and the stationary ball will have more momentum after the collusion.
5 0
4 years ago
Read 2 more answers
Other questions:
  • Compared to oceanic crust, continental crust is generally
    10·1 answer
  • Wilam made a chart to summarize the results of experiments with the photoelectric effect. Which best describes how to correct Wi
    16·2 answers
  • During a drive by golfer Ai Miyazato, the angular velocity of her club is zero at the top of the backswing and 30 rad/s at the b
    5·1 answer
  • The total mass of the products in a chemical reaction is _______
    5·1 answer
  • Which of the following BEST describes sports etiquette?
    12·1 answer
  • While traveling along a highway a driver slows from 32 m/s and comes to a stop with an acceleration of -6 m/s2. How long did it
    6·1 answer
  • Explore how archemides principle is applied in building a ship and submarine​
    11·1 answer
  • With the frequency set at the mid-point of the slider and the amplitude set at the mid-point of the slider, approximately how ma
    5·1 answer
  • An object has a mass of 2,000kg. what is its weight on earth? show your work​
    15·2 answers
  • What is the necessary conditions for the production of sound?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!