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vova2212 [387]
3 years ago
8

Where do earthquake waves originate from? select one:

Physics
1 answer:
arsen [322]3 years ago
6 0
The correct answer is C) the focus
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Calculate the change in momentum of a 45 kg runner who starts out at 1 m/s and speeds up to 3 m/s. Which anser choice is correct
Step2247 [10]

momentum can also be defined in terms of newton second

that is P=F.V

now v =vf-vi

v=3 m/s-1m/s=2 m/s

now F=W=45 kg

therefore

change in momentum=F.v

P=45*2=90 kg.m/s

4 0
3 years ago
An ideal parallel-plate capacitor having circular plates of diameter D that are a distance d apart stores energy U when it is co
Stella [2.4K]

Answer:\sqrt{3}D

Explanation:

Given

Diameter of Plates is D

distance between Plates is d

Energy Stored in the Plates is U

Suppose fixed Potential is V

Energy is given by

U=\frac{1}{2}CV^2

where C=capacitance

C=\frac{\epsilon A}{d}

where A=area of Plates

A=\frac{\pi D^2}{4}

Thus C=\frac{\epsilon \cdot \pi \cdot D^2}{4d}

Keeping all other factors as same

U\propto D^2----1

For triple the Energy

3U\propto (D')^2-----2

divide 1 and 2 we get

\frac{U}{3U}=\frac{D^2}{D'^2}

D'=\sqrt{3}D

Thus the diameter should be change to \sqrt{3} times of original value          

3 0
3 years ago
Question 5
goldfiish [28.3K]

Answer:

b

Explanation:

5 0
3 years ago
Computers A and B implement the same ISA. Computer A has a clock cycle time of 200 ps and an effective CPI of 1.5 for some progr
lesya692 [45]

Answer:

Computer A is 1.41 times faster than the Computer B

Explanation:

Assume that number of instruction in the program is 1

Clock time  of computer A is CT_{A} =200 ps

Clock time  of computer B is CT_{B} =250 ps

Effective CPI of computer A is CPI_{A} =1.5

Effective CPI of computer B isCPI_{B} =1.7

CPU time of A is

CPU_{time}=instructions \times CPA_{A} \times CT_{A}\\CPU_{time}=1 \times 1.5 \times 200=300 sec

CPU time of B is

CPU_{time}=instructions \times CPA_{B} \times CT_{B}\\CPU_{time}=1 \times 1.7 \times 250=425 sec

Hence Computer A is Faster by \frac{425}{300} =1.41

Computer A is 1.41 times faster than the Computer B

4 0
3 years ago
In electroplating, the object to be plated is which part of an electrolytic cell? cathode or anode
Bingel [31]

Since the anode dissolves and goes to the cathode. The object to be electroplated is kept at the cathode.

Please mark me as brainliest.

7 0
3 years ago
Read 2 more answers
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