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
Bas_tet [7]
2 years ago
7

A truck moves 70 m east, then moves 120 m west, andfinally

Physics
1 answer:
SOVA2 [1]2 years ago
7 0

Answer:

40m (40m east)

Explanation:

The fist move is 70m east, and east is the positive direction so the truck initially is at +70m.

The second move is 120m to the west, since east is the positive direction, west must be the negative direction, this means the truck now is at:

+70m -120m = -50m

The third move is 90m to the east, again, this is the positive direction, so the new position is:

-50m + 90m = +40m.

The truck is at + 40m, so it ended up 40m away from its initial position and this is the resultant dispacement.

You might be interested in
Please help! This is due in 10 minutes
Elenna [48]

Answer:

Atom - the basic particle of matter

Density - calculated from measurements of mass and volume

Motion - calculated from measurements of distance and time

Energy - can change form and move matter

Matter - the scientific word for <em>stuff</em>

<em />

Hope this helps! Please mark brainliest if correct :D

8 0
2 years ago
Ella makes this table to organize her notes on whether atoms gain or lose energy during the changes of state.
solong [7]

Answer:

The answer is D.

7 0
3 years ago
Read 2 more answers
The force of gravity is twice as great on a 2-kg rock as on a 1-kg rock. Why then, dose the 2-kg rock not fall with twice the ac
Phoenix [80]

Answer:

because all objects fall at a rate of 9.8m/s²

8 0
2 years ago
Bone with a latticework structure is called
malfutka [58]
Spongy or the cancellous bone is the bone with lattice work structure
7 0
3 years ago
In 1985, during the construction of a skyscraper in Austin, Texas, the remains of a mastodon were unearthed. If only 1/64 of the
Art [367]

Answer:

  • <u>34,380 years</u>

Explanation:

The remaining amount of a radioactive isotope is found as the product of the original amount by (1/2) raised to the number of half-lives elapsed. The formla is:

  • M = M₀ × (1/2)ⁿ

Where M is the remaining amoun, M₀ i s the initial amount, and n is the number of half-lives.

Here, 1/64 of the original carbon-14 remained, meaning that M/M₀ = 1/64.

Then, you can substitute in the equation and solve:

  • (1/64) = (1/2)ⁿ
  • (1/2⁶) = (1/2ⁿ)
  • 2⁶ = 2ⁿ
  • 6 = n

Then, 6 half-lives elapsed since the mastodon died and the remains were dated.

Then, you must multiply 6 by the <em>half-life </em>time:

  • 6 × 5730 years = 34,380 years ← answer
8 0
3 years ago
Other questions:
  • In the SI system of units, dynamic viscosity of water μ at temperature T (K) can be computed from μ=A10B/(T-C), where A=2.4×10-5
    11·1 answer
  • Which statement best explains that sound waves are pressure waves?
    6·2 answers
  • Which of the following are metric units? gallons kilograms pounds inches
    14·2 answers
  • A simple pendulum takes 2.20 s to make one compete swing. If we now triple the length, how long will it take for one complete sw
    7·1 answer
  • Water at the top of Horseshoe Falls (part of Niagara Falls)
    6·1 answer
  • A fan is driven by an electric motor. Explain how adding a thermistor to the circuit would make the fan move faster when the roo
    11·2 answers
  • How do the numbers of atoms of each element compare before and after the reaction? Why do you think this is?
    7·2 answers
  • The solid shaft with a 20 mm radius is used to transmit the torques applied to the gears. Determine the maximum torsional shear
    6·1 answer
  • Two charged spheres 10 cm apart attract each other with a force of 3.0 x 10^-6 N. What electrostatic force will result if both c
    5·1 answer
  • What is the smallest particle in the Universe?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!