Physics, 12.04.2021 15:40 ilovejustinbieber42
Which statement best describes plant cells?
- plant cells have cell walls and chloroplasts to conduct photosynthesis
- plant cells have a smaller vacuoles than in animal cells
- plant cells have mitochondria to also perform cellular respiration
- all of the above
- only a & c
Answers: 1
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Determine the maximum r-value of the polar equation r =3+3 cos 0
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Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates
Answers: 3
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The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?
Answers: 2
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In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km.h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.
Answers: 2
Which statement best describes plant cells?
- plant cells have cell walls and chloroplasts to condu...
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