The best exercise for Alicia to add to her routine will be biking with occasional sprints. Thus, the correct option is A.
What are Anaerobic activities?Anaerobic exercise is a type of exercise which involves breaking down of the glucose sugar in the body without using the oxygen gas. Anaerobic means without oxygen, the exercises which does not require oxygen. In practical terms, it means that anaerobic exercise is more intense exercise, however shorter in duration than that of aerobic exercise.
Alicia’s coach thinks that she should try some interval training so that she can get some anaerobic activity. The activity which should be added to her routine is biking with occasional sprints.
Therefore, the correct option is A.
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If a male runner in the fourth starting position ran the 400 m race in 44.40 s, how would you
calculate his average speed?
If a male runner in the fourth starting position ran the 400 m race in 44.40 s, then for calculating his average speed we have to divide the total distance covered by the time taken by him to cover the distance.
His average speed would be 9.0 meters/second.
What is speed?The total distance covered by any object per unit of time is known as speed. It depends only on the magnitude of the moving object. The unit of speed is a meter/second. The generally considered unit for speed is a meter per second.
The mathematical expression for speed is given by
speed = total distance /Total time
If a male runner in the fourth starting position completed the 400 m race in 44.40 s, we must divide the total distance traveled by the amount of time it took him to complete the course to get his average pace.
the average speed of the runner = 400 meters/44.40 seconds
= 9.0 meters/second
Thus, his average speed.be his average speed would be 9.0 meters per second
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A 700 g block is released from rest at height h0 above a vertical spring with spring constant k ! 400 N/m and negligible mass. The block sticks to the spring and momentarily stops after compressing the spring 19.0 cm. How much work is done (a) by the block on the spring and (b) by the spring on the block
The work done by the block on the spring and by the spring on the block is 7.22 J.
The given parameters;
mass of the block, m = 0.7 kgspring constant, k = 400 N/mextension of the spring, x = 19 cm = 0.19 mBased on law of conservation of energy, the potential energy of the block will be converted to elastic energy of the spring, producing the given extension.
The work done by the block on the spring will be equal to work done on the block by the spring.
[tex]W = \frac{1}{2} kx^2\\\\W = \frac{1}{2} \times 400 \times 0.19^2\\\\ W = 7.22 \ J[/tex]
Thus, the work done by the block on the spring and by the spring on the block is 7.22 J.
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Three astronauts guide a 100 kg asteroid safely away from their space capsule. The first astronaut pushes with a 35 N force directed 45 degrees below the x-axis. The second astronaut pushes with a 35 N force directed 45 degrees above the -axis. The third astronaut pushes with a 35 N force along the x-axis. Calculate the magnitude of the net force exerted by the three astronauts. Calculate the rate (magnitude only) at which the asteroid's velocity changes.
The magnitude of the net force exerted by the three astronauts is 84.5 N and the rate at which the asteroid's velocity changes is 0.845 m/s².
The given parameters;
mass of the asteroid = 100 kgforce by first astronaut = 35 N, at 45 degrees below x -axisforce by second astronaut = 35 N, at 45 degrees above x-axisforce by third astronaut = 35 N, at 0 degrees on x-axisThe resultant horizontal force applied by the three astronauts on the asteroid is calculated as;
Fₓ = 35cos(45) + 35cos(45) + 35cos(0)
Fₓ = 84.5 N
The rate at which the asteroid's velocity changes is calculated as;
[tex]F = ma = m\frac{\Delta v}{\Delta t} \\\\\frac{\Delta v}{\Delta t} = \frac{F}{m} \\\\\frac{\Delta v}{\Delta t} = \frac{84.5}{100} \\\\\frac{\Delta v}{\Delta t} = 0.845 \ m/s^2[/tex]
Thus, the magnitude of the net force exerted by the three astronauts is 84.5 N and the rate at which the asteroid's velocity changes is 0.845 m/s².
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1 thing you learned about your culture that you did not know
Answer: That There are diffrent names for my skin color
Explanation:
If you pull on a car with 200N of force, what does Newton’s 3rd Law says will happen?
What type of forces are needed in a system for the object to move?
Answer:
they are
Explanation:
1.Frictional force
2.Applied force
3.Normal force
5 . W h ic h o f th e fo l lo w in g is N O T a fu n d a m e n ta l S .I u n it? A . M e te r B . A m p e re C . K e lv in D . Radian
Explanation:
it is an AMPERE
because 1 AMPERE = CHARGE / TIME
WHICH INVOLVES 2 UNITS
If a truck weighs 195,000N what is the mass of the truck
Answer:
19500kg
Explanation:
If you divide 195000N by 10
the circuit contains a filament bulb, connected with ........ to a ........
fill in the blanks.
Answer:
The circuit contains a filament bulb, connected with terminal to a terminal.
Explanation:
The base of the electric bulb and the metal tip of the base are the two terminals of the bulb. One is called a positive terminal while the other is called a negative terminal. The filament of the electric bulb is connected to its terminals.
The amount of work (W) done on an object is equal to the force (F) needed to lift
the object (the object’s weight) multiplied by the distance (d) the object is lifted: W = F ✕ d.
Use the weight of the ball that you calculated in activity B to determine how much work
would be required to lift the ball 2 meters above the zero position:
Answer:
Weight x Distance is usually shown in graph form just multiply these to find the Force. W x D = F
Other formula's.
Finding Kinetic energy with given weight 10kg
In classical mechanics, kinetic energy (KE) is equal to half of an object's mass (1/2*m) multiplied by the velocity squared. For example, if a an object with a mass of 10 kg (m = 10 kg) is moving at a velocity of 5 meters per second (v = 5 m/s), the kinetic energy is equal to 125 Joules, or (1/2 * 10 kg) * 5 m/s 2.
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Answer:
As a capacitor is charging it takes up charging current and there's significant drop of current as the voltage increases in the capacitor.
Thus, D is the correct option.
2nd qn,
A is the correct option. Since points B, C and D are points of interaction and the force can be experienced at intervals while at A the forces will be balanced.
3. There is a thin layer of water between the blade and the ice. Suggest how this affects friction and helps the skater? .
Explanation:
Underneath the blade of skates, there is a thin layer of water from the melted ice. ... This water then acts as a lubricant (something whose purpose is decreasing friction), resulting in a smooth motion of the skates over the ice.
If a 2kg block of copper is heated and a temperature increase of 50C is measured, how much energy has been provided?
Answer:
...................
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Khi tia tới hợp với pháp tuyến tại điểm một góc i = 30 độ thì tia phản xạ hợp với pháp tuyến tại điểm tới một góc
A. i' = 90 độ B. i' = 45 độ
C. i' = 30 độ D. i' = 60 độ
Answer:
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A ball of mass 0.50 kg was thrown directly up at a speed of 6.0m/s.Calculate. A.its kinetic energy at 6ms^-1b.its maximum gain of potential energy. C.its maximum height gain.
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A) Its kinetic energy be 9.0 Joule.
B) Its maximum gain of potential energy is 9.0 Joule.
C) Its maximum gain in height be 1.91 m.
What is speed?Speed is distance travelled by the object per unit time. Due to having no direction and only having magnitude, speed is a scalar quantity With SI unit meter/second.
Given parameters:
Mass of the ball: m = 0.50 kg.
Initial speed of the ball: v = 6.0 m/s.
A) its kinetic energy at initial = 1/2mv² = 1/2 × 0.50 × 6.0² Joule = 9.0 Joule.
B) As total energy is conserved., when the ball reaches its maximum height its initial kinetic energy fully transforms into potential energy. Its maximum gain of potential energy is its kinetic energy, that is, 9.0 Joule.
C) Its maximum gain in height be = √(v²/2g) = √(6.0²/2×9.8) m = 1.91 m.
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How far has a ball traveled after 3.6 seconds when thrown downward at a
velocity 3.75 m/s?
ball traveled 13.5 m/s after 3.6 seconds
Explanation:
u=3.75m/s, t=3.6s, g=9.8m/s².
Therefore, according to the formula,
S=ut+½gt².
S=(3.75×3.6)+½×9.8×(3.6)²
S= 13.5+63.504
S= 77.004m (approximately 77 m)
therefore the distance traveled by the ball is 77m.
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What is the quantity that is the same for all masses?
Answer:
mass: The quantity of matter which a body contains, irrespective of its bulk or volume. It is one of four fundamental properties of matter. It is measured in kilograms in the SI system of measurement.
Explanation:
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Answer:
D
Explanation:
I had the question on an exam, I answered D and I got 97% on the test, I got it correct with the answer of D. TO be fair I guessed on the test and got it right, lucky guess I suppose.
Answer:
According to electrostatic concept the electric potential will be toward the negative charge and the coulomb force will be directed towards the negative charge.
Due to that 4 is the correct option.
That's what I think, all the best!
what is uniform velocity
Answer:
this is the velocity
Explanation:
Uniform Velocity-A body is said to have uniform velocity if it covers equal distance in equal intervals of time in a particular direction, however, the time intervals may be small.
A car was going at 20m/s along a straight highway. The driver slams on the break to avoid hitting a deer. The car had a negative acceleration of -2m/s^2 How much time did it take the car to stop
What is the Coriolis Effect?
Question 5 options:
the circulation route of trade winds moving from east to west
the way that tropical winds circulate to form hurricanes and large storms
the rapid movement of winds found in the upper atmosphere
the curved path of global winds due to the rotation of Earth on its axis
Answer:
An effect whereby a mass moving in a rotating system experienced a force acting perpendicular to the direction of motion and to the axis of rotation.
The ______ describes the number of wavelengths that pass through a fixed point in a given period.
Answer:
frequency
Explanation:
Frequency refers to the number of waves that pass a given point in a given time period and is often expressed in terms of hertz (Hz), or cycles per second. Longer wavelengths will have lower frequencies, and shorter wavelengths will have higher frequencies ([link])
suppose that we attach velcro® to the non-magnetic ends of the two carts in the video and remove the mass bars, so that both carts have the same mass. we repeat the experiment shown in the video, and the carts stick together after they collide. if the launch cart travels at a speed v0, then how fast will the combined two-cart system travel after the collision?
The momentum conservation allows to find the final speed of the cars together are:
If the second car is stopped, the final speed is: v = vo / 2 If the second car moves towards the first, the final speed is: v = 0
The momentum is defined by the product of the mass and the speed of the body.
p = m v
Where the bold letters indicate vector, p is the moment, m is the mass and v the velocity.
If we define the system as formed by the two bodies, the forces during the collision are internal and the momentum is preserved, let's find the moment in two instants.
Initial instant. Before crash.
p₀ = m v₀₀₀+ m v₀₂
Final moment. After the crash.
[tex]p_f = 2m \ v[/tex]
The moment is preserved.
[tex]p_o =p_f \\m v_o + m v_o_2 = 2m \ v[/tex]
[tex]v = \frac{m v_o + v_o_2}{2m}\\ v = \frac{1}{2} \ ( v_o + v_o_2)[/tex]
We have two cases:
That the second car is initially stopped, therefore the speed is zerov = v₀ / 2
That the second car move towards the first with velocity v₀₂ = - vov = 0
In conclusion using the momentum conservation we can find the final velocity of the cars together are:
If the second car is stopped, The final speed is: v = vo / 2 If the second car moves towards the first, the final speed is: v = 0
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Temperature at which change of state occurs is... (science))
Answer: melting
Explanation: Becuse that is the science
If the mass were to increase 12 times, what would happen to the kinetic energy?
Answer:
Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes. The same amount of work is done by the body when decelerating from its current speed to a state of rest. Tell me if u need any more help, have a goooood dayyyyy and pls mark brainly
Explanation:
What is the total distance travelled? What is the displacement of the object?
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Acceleration due to gravity on the moon is 1.6 m/s2. If a person has a mass of 65 kg on Earth, what is their weight on the moon?
Answer:
10.75 kg
Explanation:
moon = (weight on earth/9.81m/s^2)*1.622m/s^2
Answer:
weight of the moon = mass × gravity
= 65kg × 1•6
=104N/kg
Isaac attempts to kick a field goal from the 40 yard line. He kicks the football at 38 m/s at a 50° angle above horizontal. If the football reaches the goal post at 3/4 of the horizontal distance kicked, then will it be high enough to cross the goal post that is 3.66 m high?
Please help asap!
Answer: Solution In photo
1. a conductor carries a current that is decreasing exponentially with time. the current is modeled as where is the current at time and is the time constant. how much charge flows through the conductor between and ?
Explanation:
what is the colour of our blood
Answer:
Q = Q0exp -t/RC
Explanation:
Q0 initial chage
RC time constant
t time
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Does increasing mass also increase the energy transferred to another object? What is your evidence to support this claim?
Increasing mass (will / will not) increase the energy put into another object.
Answer:
Energy is essentially work done by an object or on object.
From,
W = Fd
It's directly proportional to mass.
from,
K. E = 1/2mv²
Energy is directly proportional to mass.
P. E = mgh
Energy is directly proportional to mass.
H = mc∆T
Energy is directly proportional to mass.
Thus increasing mass will increase the energy also imparted on another object since all the above eqns show that relationship.
And for 2 moving bodies
K.Ei = K.Ef(energy conservation)
m1u²1 + m2u²2 = m1v²1 + m2v²2
The relationship is the same that the greater mass the greater the impact.