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denis23 [38]
3 years ago
15

When does the difference between two vectors equal to zero ?

Physics
1 answer:
SVEN [57.7K]3 years ago
5 0

Answer: Yes, two vectors of equal magnitude that are pointing in opposite directions will sum to zero

Explanation: Two vectors of unequal magnitude can never sum to zero. If they point along the same line, since their magnitudes are different, the sum will not be zero.

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in oder to reduce the amount of energy lost due to heat flow, electricity is deliverd to our homes useing
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High voltage transmission wires. Electrical lines you see outside of your home and basically everywhere you go.
4 0
4 years ago
In a series circuit, an ammeter shows the current leaving the positive end of a cell is 0.5A. What current flows into the negati
Evgesh-ka [11]

Answer:

0.5A as in a series circuit the current is the same everywhere

Explanation:

5 0
3 years ago
A simple pendulum is made from a 0.54-m-long string and a small ball attached to its free end. The ball is pulled to one side th
Serga [27]

Answer:

0.37sec

Explanation:

Period of oscillation of a simple pendulum of length L is:

T = 2 π × √ (L /g)

L=length of string 0.54m

g=acceleration due to gravity

T-period

T = 2 x 3.14 x √[0.54/9.8]

T = 1.47sec

An oscillating pendulum, or anything else in nature that involves "simple harmonic" (sinusoidal) motion, spends 1/4 of its period going from zero speed to maximum speed, and another 1/4 going from maximum speed to zero speed again, etc. After four quarter-periods it is back where it started.

The ball will first have V(max) at T/4,

=>V(max) = 1.47/4 = 0.37 sec

3 0
4 years ago
Solar energy can be changed into thermal energy without any work being done. true or false
Black_prince [1.1K]

Answer:

True

Explanation:

3 0
3 years ago
A machinist measures the length of a bolt. The length is 72.22 cm. What is the length in millimeters?
pochemuha

Answer:

The length of the bolt in millimeters is 722.2 mm

Explanation:

Given;

length of the bolt in centimeters, = 72.22 cm

The length of the bolt in millimeters is given by;

Multiply the length by 10

= 72.22 cm x 10

= 722.2 mm

Therefore, the length of the bolt in millimeters is 722.2 mm

7 0
3 years ago
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