Answer:
Yes it can A
Explanation:
Answer:
The correct choice is A. True
Explanation:
Tracking your exercise can help you stick with an exercise routine because it lets you see how you are progressing in terms of reaching your previously set goals.
A car drives off a 50m cliff at 25m/s. How long does it take for the car to crash?
Answer:
It will take the car 2 seconds to crash.
Explanation:
If the car is going down a 50 m cliff and the driver is going at 25 m/s it will take the car 2 seconds to crash.
25(m) x 2(seconds) = 50(m)
A block of mass 0.244 kg is placed on top of a light, vertical spring of force constant 4 975 N/m and pushed downward so that the spring is compressed by 0.097 m. After the block is released from rest, it travels upward and then leaves the spring. To what maximum height above the point of release does it rise
As the spring returns to it's equilibrium position, it performs
1/2 (4975 N/m) (0.097 m)² ≈ 23 J
while the gravitational force (opposing the block's upward motion) performs
-(0.244 kg) g (0.097 m) ≈ -2.3 J
of work on the block. By the work energy theorem, the total work done on the block is equal to the change in its kinetic energy:
23 J - 2.3 J = 1/2 (0.244 kg) v² - 0
where v is the speed of the block at the moment it returns to the equilibrium position. Solve for v :
v² = (23 J - 2.3 J) / (1/2 (0.244 kg))
v = √((23 J - 2.3 J) / (1/2 (0.244 kg)))
v ≈ 44 m/s
After leaving the spring, block is in free fall, and at its maximum height h it has zero vertical velocity.
0² - (44 m/s)² = 2 (-g) h
Solve for h :
h = (44 m/s)² / (2g)
h ≈ 2.3 m
Ampere is a unit of what electrical quantity?
A. Current
B. load
C. resistance
D. Voltage
Answer:
current
Explanation:
A man, moving at 3 km/hr along a
straight line, finds that the rain drops are
falling at 4 km/hr in vertical direction.
Find the angle with which rain drop hits
the ground.
A man, moving at 3 km/hr along a
straight line, finds that the rain drops are
falling at 4 km/hr in vertical direction.
Find the angle with which rain drop hits
the ground.
Answer:
tan
Explanation:
Will the pressure in glass of fruit juice be bigger or smaller than the pressure in water?
Answer:
the pressure of fruit juice is smaller
the pressure of water is bigger
Explanation:
What is the purpose of using conductors in a circuit?
Answer:
Conductors and insulators are both important in the field of electronics. Electrical conductors allow electric current to flow easily because of the make up of their atoms. In a conductor, the outer electrons of the atom are loosely bound and can freely move through the material when an electric charge is applied.
Explanation:
Animals which only consume other animals are called
Answer:
Carnivores
Explanation:
A carnivore is an organism that mostly eats meat, or the flesh of animals. Sometimes carnivores are called predators. Organisms that carnivores hunt are called prey.
Carnivores are a major part of the food web, a description of which organisms eat which other organisms in the wild. Organisms in the food web are grouped into trophic, or nutritional, levels. There are three trophic levels. Autotrophs, organisms that produce their own food, are the first trophic level. These include plants and algae. Herbivores, organisms that eat plants and other autotrophs, are the second trophic level. Carnivores are the third trophic level. Omnivores, creatures that consume a wide variety of organisms from plants to animals to fungi, are also the third trophic level.
true or false Positivley charged atoms contain more protons.
Answer:
false
Explanation:
Hope this helps
A body is under the action of two forces 7N and 10N. Find the resultant of the two forces if the forces are parallel and act in opposite directions
Answer:K;O9KGVB
Explanation:
PLEASE ANSWER NEED HELP!!!!!!!! PLEASE THE CORRECT ANSWER!!!!!!
Laquita is a competitive diver. She made it to the semi-final round of Olympic tryouts but did not make the team. How should she interpret this loss?
A.
as a sign that her hard work has been wasted and she should find a new sport
B.
as an indication that she should fire her coach and find someone more competent
C.
as an indication that she will definitely win if she comes back again
D.
as a sign that she is an exceptional athlete with a great deal of potential
PLEASE NO LINKS
Answer:
D!!! im sure of it!
Explanation:
its correct in plato
What is the kinetic energy
Answer:
energy which a body possesses by virtue of being in motion
Explanation:
How much force is required to accelerate a .6 kg object at 5 m/s^2
Answer:
[tex].[/tex]
» 30 N
Explanation:
Given :
Mass → m → 6kg
Acceleration → a →
[tex]5 {ms}^{ - 2} [/tex]
To find :
The formula for force
F = m • a
F = 6 • 5
F = 30 N
can a particle with constant speed be accelerating
Answer:
Yes
Explanation:
An object moving in a circle at constant speed is INDEED accelerating. It's accelerating because the direction of the velocity vector is changing.
A spaceship fires a missile toward a second spaceship at 0.950c; the missile approaches the second ship at 0.750c. Describe how the ships are moving with respect to one another.
Answer:
the missile approaches the second ship at 0.750c. Describe how the ships are moving with respect to one another.
Explanation:
A hollow sphere of radius 68 cm rolls without slipping to the bottom of an inclined plane. If the angular velocity of the sphere is 5.88 rad/s at the bottom, what is the height of the inclined plane
Hi there!
We know that:
Ei = Ef
At the bottom of the incline, we have both rotational and translational kinetic energy. Recall:
Translational KE = 1/2mv²
Rotational KE = 1/2Iw²
We can begin by deriving an equation for the final energy of the sphere.
Moment of Inertia of a hollow sphere= 2/3mR²
[tex]KE_{total} = \frac{1}{2}mv^2 + \frac{1}{2}(\frac{2}{3}mR^2(\frac{v^2}{R^2}))[/tex]
Simplify:
[tex]KE_{total} = \frac{1}{2}mv^2 + \frac{1}{3}mv^2 = \frac{5}{6}mv^2[/tex]
Since Ei = Ef, and the initial energy is simply PE = mgh, thus:
mgh = 5/6mv²
Cancel out 'm':
gh = 5/6v²
We are given the angular velocity, so we can convert to velocity using:
v = ωr
v = 5.88(.68) ≈ 4.00 m/s
h = (5/6v²)/g
h = (5/6(4²))/g = 1.359 m
Can somebody help me please be correct I can’t afford to not get it correct please please .
Answer:
smog. Just trust me im sure its right.
The following are connected in parallel circuit at home EXCEPT:
A. TV
B. light bulbs
C. refrigerator
D. Christmas lights
A box with a mass of 2 kg is pushed by a 10 N force. The
acceleration is_m/s2
Answer:
5 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
[tex]a = \frac{f}{m} \\ [/tex]
f is the force
m is the mass
From the question we have
[tex]a = \frac{10}{2} = 5 \\ [/tex]
We have the final answer as
5 m/s²Hope this helps you
Draw and label the following vectors to scale one below the 4.2.1 2F (Remember F-S N to the night) 4.2.2 0.57 4.2.3 - 4.2.4 -2F and Fact on an object. F = 2 N upwards and
Which advantage does the store-and-forward switching method have compared with the cut-through switching method?.
The advantage that the store-and-forward switching method has over the cut-through switching method is that there's a high-quality traffic transmission.
It should be noted that in the store-and-forward switching mode, the switches receive and store the frame before any operational decisions are made.
In the cut-through switching method, the switches get only a fraction of the frame and make a forwarding decision.
Learn more about switches on:
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Help!!! Earth science !!!
Answer:
DThe samebExplanation:
[tex] \frac{159.4}{59.7} = 2.67[/tex]Because, well, science? Don't know how to explainBecause, well science again. Well, physics.A ball starting from rest accelerates uniformly at 5.0 meters per second2 as it rolls 40. meters down an incline. How much time is required for the ball to roll the 40. meters
The time required for the ball to roll down the given distance is 4 seconds.
Given the data in the question;
Since the ball started from rest,
Initial velocity; [tex]u = 0[/tex]Acceleration; [tex]a = 5.0m/s^2[/tex]Distance traveled; [tex]s = 40m[/tex]Time taken; [tex]t =\ ?[/tex]To determine the time required for the ball to travel the given distance, we use the Second Equation of Motion:
[tex]s = ut + \frac{1}{2}at^2[/tex]
Where s is distance traveled, u is initial velocity, a is acceleration and t is time taken.
We substitute our given values into the equation and solve for "t"
[tex]40m = [ 0*t ] + [ \frac{1}{2}\ *\ 5.0m/s^2\ *\ t^2 ]\\\\40m = 2.5m/s^2\ *\ t^2\\\\t^2 = \frac{40m}{2.5m/s^2}\\\\t^2 = 16s^2\\\\t = \sqrt{16s^2}\\\\t = 4s[/tex]
Therefore, the time required for the ball to roll down the given distance is 4 seconds.
Learn more: https://brainly.com/question/3391840
A lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb causing it to glow. What energy transformation are taking place
Answer:
Electrical>thermal>light
Explanation:
which of the following is true about the magnitude of the velocity and acceleration of an object at point D on the trajectory?
Answer:
D) v= 6.4 m/s a=10m/s^2
Explanation:
At top vnet= ucos (theta)
= 10 cos (50)
=10× 0.64=6.4m/s
Acc will be g (10m/s^2)
•At top point vy=0 and vx=ucos (theta)
Horizontal vel always remain same.
Plot the line for the equation on the graph.
y−2=−2(x+4)
what is the source of energy that directly drives atp synthase in its production of atp?
The sun's thermal energy serves as the primary energy source for producing atp during the photosynthesis process. Essentially, it serves as the primary catalyst for all metabolic processes in plants. Protons diffusing through the F0 section of ATP synthase
What is adenosine triphosphate?All living things contain the energy-carrying molecule adenosine triphosphate (ATP) in their cells. When food molecules are broken down, chemical energy is released that is captured by ATP and used to power other cellular operations.
To drive metabolic events that would not happen naturally, to transfer necessary molecules across membranes, and to do mechanical labor, such as moving muscles, cells need chemical energy.
Chemical energy cannot be stored by ATP; lipids and carbohydrates such as glycogen serve this purpose. ATP is created when energy from storage molecules is required by the cell.
To know more about adenosine triphosphate:
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How much electrical energy is used by a 75 W laptop that is operating for 12
minutes?
O A. 27,000 J
B. 108,000 J
C. 900 J
O D. 54,000 J
Answer:
54,000 J
Explanation:
Given,
Power ( P ) = 75 W
Time ( t ) = 12 minutes
To find : Electrical energy ( E ) = ?
t = 12 minutes
= 12 x 60
t = 720 seconds
Formula : -
E = Pt
E = 75 x 720
E = 54,000 J
Therefore,
54,000 J is the electrical energy is used by a 75 W laptop that is operating for 12 minutes.
what is imformashion
Answer:
facts provided or learned about something or someone.
NEED HELP!!!!!
Why would oxygen levels make a difference in athletic performance?
A.
Muscles need oxygen to function well.
B.
It is just one biometric that is studied.
C.
Oxygen is important for everyone, not just athletes.
D.
Athletes require less oxygen than those who are less active.
Oxygen levels make a difference in athletic performance because muscles need oxygen to function well. Thus, the correct option for this question is A.
What are the characteristics through which athletic performance depends?The characteristics through which athletic performance depends are as follows:
Muscle strength.Cardiovascular endurance.Climatic conditions.Competency of recovery. Conscientiousness and openness.The level of oxygen in the muscle cells translates to greater energy production and improved performance. This is only possible when the increased quantity of blood allows more red fluid to reach athletes' muscles during exercise. The transportation of more blood means the level of oxygen is significantly good. This process makes energy-rich situations for the athlete to keep their performance to the top level.
Therefore, oxygen levels make a difference in athletic performance because muscles need oxygen to function well. Thus, the correct option for this question is A.
To learn more about Athletic performance, refer to the link:
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consider the same balloon as in part d. based on what you learned in the video and your answer to part d, if you assume that your balloon began very tiny and has been expanding at a constant rate, what can you conclude about how long your balloon has been expanding?
Answer:
Your balloon has been expanding for 5 hours.
Explanation:
Your balloon has been expanding for 5 hours.
