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
Artemon [7]
3 years ago
5

A square has sides of length 45mm. What is the area of the square in mm²?

Physics
1 answer:
tamaranim1 [39]3 years ago
6 0

Answer: 2025mm²

rvdtbhynjgkuhmmnjgyhftdgvrfs

You might be interested in
If fuel consumption is 80 pounds per hour and groundspeed is 180 knots, how much fuel is required for an airplane to travel 477
lisov135 [29]

Answer:

212 pounds

Explanation:

477 nm / 180 nm/hr     *   80 #/hr = 212 #

5 0
2 years ago
If you carry out an experiment measuring the weight and mass of objects in one particular location on the earth, what relation w
Elina [12.6K]
The answer is letter C.

Weight (on Earth) is the force due to the mass of Earth attracting whatever mass is subject of discussion.

The force of attraction between any two masses is called Newton's Law of Universal Gravitation:

G \frac{m_1m_2}{d^2}

G is simply a given constant.

If we're at the surface of Eath, m_1 refers to the mass of the Earth, m_2 to the mass of whatever is on the surface of Earth, and d to the radius of Earth. 

Normally, we define a constant g to be equal to G \frac{M}{r^2}; in which M is the mass of Earth and r the radius of earth; g happens to be around 9.8.

By that, we adapt the Law of Universal Gravitation to objects on the surface of Earth, we call that force Weight.

W=mg

As you can see, weight is directly proportional to mass, more mass implies more weight.
8 0
4 years ago
Thunder is heard 7.2 seconds after a bolt of lightning is observed. if the speed of sound is 349 m/s, how far away did the light
Natasha2012 [34]

Answer:

2512.8 meters

Explanation:

s=d/t

by using speed formula

5 0
2 years ago
A person on a diet loses 1.6 kg in a week. How many micrograms/second (µg/s) are lost?
Ivan
Based on the given values above, in order for us to get the answer, we need to convert the units first. So in 1 kilogram, there is 1,000,000 micrograms. In this case, 1.6 kilograms is 1,600,000 micrograms. For the week to seconds, 1 week is equivalent to 604,800 seconds. Therefore, 1,600,000 micrograms/604,800 seconds. So we are going to simplify this. So it would be 2.65<span>µg/s. Hope this answers your question.</span>
8 0
3 years ago
A 75 g bullet is fired from a rifle having a barrel 0.650 m long. Assuming the origin is placed where the bullet begins to move,
kolbaska11 [484]

Answer:

7557.875 J

Explanation:

Assumimg we need to find work done by the bullet on the gas

The work is found by integrating force over distance

W= W=\int_{x_i}^{x_f}F.ds

For the force in this problem we have

W=\int_{0}^{0.65}14000 + 10000x - 21000x^2.ds

= [14000x+10000x^2-21000x^3]_{0}^{0.65}

=7557.875 J

8 0
3 years ago
Other questions:
  • Which of the following has kinetic energy? A. A baseball stopped in the catcher's mitt B. A thrown baseball C. A baseball sittin
    11·1 answer
  • Desmond builds a set of towers out of blocks. The table shows the number of blocks in each tower. Tower # 1 2 3 4 5 Number of bl
    13·1 answer
  • By what factor does the sound intensity increase if the sound intensity level increases from 60 db to 61 db?
    6·1 answer
  • I am starting out as a pilot. What single engine make of airplane should I get (Cheaper to bye one and train than to rent it)?
    7·2 answers
  • The _____ law of thermodynamics states that energy can't be created or destroyed. Two natural sources of energy on Earth are the
    5·2 answers
  • Which statement is true about air pressure acting in an object
    13·1 answer
  • Suppose we are told that the acceleration a of a particle moving with uniform speed v in a circle of radius r is proportional to
    15·2 answers
  • What caused earths continents to drift apart?
    5·2 answers
  • you measure that it takes 0.75 seconds for a leaf to fall from a tree to the ground. the leaf experiences air resistance as it f
    10·1 answer
  • What is a scalar?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!