Which statements about velocity are true?Check all that apply.
A. For velocity, you must have a number, a unit, and a direction.
B. The SI units for velocity are m/s2.
C. The symbol for velocity is .
D. To calculate velocity, divide the displacement by time.
Answers
just took the quiz its A C and B
Related Questions
What is the resistance of an object to moving or to stoppingA. GravityB. InertiaC. Gravitational Force
Which of the following is not a main cause of weathering? A.wind B. GlaciersC. Moving waterD. Human actions
What happens when the temperature of a substance is slightly decreased?
A body moving with a velocity of 20m/s begins to accelerate at 3 m/s 2 . How far does the body move in 3 seconds
B. positron
C. neutrino
D. helium-4
Answers
Answer:
The answer is B i just took the test and got it correct:)
Explanation:
b. thermal energy
c. mechanical energy
d. electrical energy
Answers
Photosynthesis is a process in plants wherein light energy is converted to chemical energy, which is then stored as glucose. This is stored in the chloroplasts.
Photosynthesis is divided into two stages: the light and dark stage. In the light stage, the light energy is converted into ATP and NADPH, these are like the energy cells of the plant. After the light stage, the ATP and NADPH that were produced are used in the dark stage. The dark stage will use these energy cells to transform carbon dioxide into sugar.
Answer:
Therefore, a. chemical energy plant store when light is transformed during photosynthesis.
Explanation:
Photosynthesis is the process plants and some algae use to convert light energy to chemical energy stored as sugar within chloroplasts .
Photosynthesis is 6CO2 + 6H20 + light energy = glucose + 6 oxygen.
Photosynthesis is divided into two main stages: light reaction and dark reaction. The light reaction converts light energy into adenosine triphosphate,
(ii) it reached a uniform velocity after a short time
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(ii) because the force on the metal box is gone (either it has landed on the ground or something else happened) that means that the metal box is no longer moving but it has constant velocity/uniform velocity.
I'm sorry if it's wrong but that's how I see it
Answer:
1
Explanation:
m_earth=5.97×10^24 kg
G=6.674×10^−11 Nm^2/kg^2
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Answer:
The weight of the astronaut in Earth's orbit 400 km above the Earth's surface is 664.115 N
Explanation:
The given parameters are;
The weight of the astronaut on the ground = 750 N
The height of the orbit above the Earths surface = 400 km
The radius of the Earth = 6.38 × 10⁶ m
The mass of the Earth = 5.97 × 10²⁴ kg
The universal gravitational constant G = 6.674 × 10⁻¹¹ Nm²/kg²
From Newton's law of universal gravitation, we have;
= ((6.38 × 10⁶)² × 750)/((6.674 × 10⁻¹¹) × (5.97 × 10²⁴)) ≈ 76.62 kg
The mass of the astronaut ≈ 76.62 kg
For the weight of the astronaut in Earth orbit 400 km (400 × 10³ m) above the Earth's surface, we have;
The weight of the astronaut in Earth's orbit 400 km above the Earth's surface = 664.115 N.
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Final answer:
The acceleration of object Y is 2.5 m/s/s which is less than the acceleration of object X which is 3.0 m/s/s.
Explanation:
The acceleration of an object is calculated using the formula: a = (v_f -v_i) / t, where v_f is the final velocity, v_i is the initial velocity and t is time. For object Y, the final velocity is 25m/s, the initial velocity is 0m/s and the time is 10s, hence its acceleration will be (25-0)/10 = 2.5 m/s/s. This indicates that Object Y's acceleration is less compared to Object X's acceleration of 3.0 m/s/s.
Learn more about Acceleration here:
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v=10a
25/10=a
2.5=a
object x accelerates 0.5m/s faster than object y
excretory system?
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Answer:
excretion
Explanation:
The bodily process of discharging waste.