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Gnesinka [82]
3 years ago
5

How do i get a negative cube when i calculate density​

Physics
2 answers:
fgiga [73]3 years ago
8 0
374848282!,!( rnanxjcifjejzxj
NNADVOKAT [17]3 years ago
8 0

Answer:

density should always be positive, you must have missed a sign somewhere

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A student walks 50 meters east, 40 meters north, 35 meters east, and then 20 m south. What is the magnitude and direction of the
Nuetrik [128]

Answer: A student walks 50 meters east, 40 meters north, 35 meters east, and then 20 m south. Then the magnitude and direction of the student's total displacement will be 87.32 m along the direction of AD or in east-south direction.

Explanation: To find the correct answer, we need to know about the Displacement of a body in motion.

<h3>What is displacement of a body in motion?</h3>
  • The displacement is the shortest distance between initial and final positions of a body.
  • It's a vector quantity, and can positive, negative, or zero.
  • The magnitude of displacement is less than or equal to the distance travelled.
<h3>How to solve the problem?</h3>
  • At first, we can draw a diagram showing the motion of the body.
  • From the diagram, the displacement of the body will be equal to the distance between point A and D.
  • To solve this, we can use Pythagoras theorem.

AD=AC+CD\\AC^{2} =50^{2} +11^2\\AC=51.19 m\\Similarly,\\CD^2=35^2+9^2\\CD=36.13 m\\thus, \\AD=51.19+36.13=87.32 m

Thus, from the above calculations, we can conclude that, the displacement of the body will be equal to 87.32 m along the direction of AD or in east-south direction.

Learn more about the Displacement here:

brainly.com/question/28020108

#SPJ4

3 0
2 years ago
How far will a car travel in 25 seconds at 10m/ min
Kryger [21]
Time = 25s
speed = 10m/min
= 10m / 60
= (1/6)m/s


distance = speed × time
= 25 × (1/6)
=4.167m
7 0
3 years ago
Can work done=mass*acceleration*displacement(work=m*a*s)
Airida [17]

no, work is = force * distance or displacement


5 0
3 years ago
Why does a light bike have more kinetic energy
FrozenT [24]
Because it doesn't use energy it uses mechanical and kinetic
3 0
3 years ago
An electric appliance is connected by wires to a 240-volt source of voltage. If the combined resistance of the appliance and wir
uranmaximum [27]
  • Voltage=V=240V
  • Resistance=R=12ohm
  • Current be I

Apply ohms law

  • V=IR
  • 240=12I
  • I=240/12
  • I=20A
6 0
2 years ago
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