Answer:
i guess u could pick "B" :)
Explanation:
What is the man’s weight on Mars where the acceleration due to gravity is 3.7 m/s2?
Answer:
8.14n in mars
Explanation:
gravitational
If one soccer ball is rolling to the right at 3 m/s and another soccer ball is rolling left with a speed of 5 m/s, how much momentum is there in this system before they collide with each other? Both have a mass of 1 KG
Answer:
Final momentum after a head on collision is -2kgm/
Explanation:
One ball moves to the right and the other moves opposite and momentum is a vector quantity so that considering the direction
Initial momenta are P₁=2x3=6kgm/s P₂=4x(-2)=-8kgm/s
Final momentum is the vector sum of P(final)= 6-8= -2 kgm/s
Hey can someone please help answer this question?
A child rides near the edge of a merry-go-round that rotates on a frictionless axis. If the child walks
toward the center of the merry-go-round, will the angular momentum change if a) the child is the
system? b) the system is the child-merry-go-round
Wouldn’t the two be the same? Because it is simply speaking about the child’s angular momentum?
Answer:
yes ............................................ks
Explanation: is good
2. A compressed gas is held inside a canister with a moveable lid. The temperature of the gas is significantly
higher than the air temperature outside the canister. When weight is removed from the lid, the gas
expands to lift it. For this expansion to be as nearly adiabatic as possible, which condition should be met?
Answer:
Heat supplied should be equal to zero.
Explanation:
Given that a compressed gas is held inside a canister with a moveable lid. The temperature of the gas is significantly higher than the air temperature outside the canister. When weight is removed from the lid, the gas
expands to lift it.
For this expansion to be as nearly adiabatic as possible, one of the conditions that should be met is that there should be no supply of thermal or heat energy to the system.
According to first law of thermodynamics:
Change in internal energy = heat supply + work done by the system
If heat supplied = 0
Then, nothing is constant.
The internal energy = work done by the system.
Therefore, no heat should be supplied to the system.
what is aerobic activities
Answer:
Aerobic exercise is any type of cardiovascular conditioning. It can include activities like brisk walking, swimming, running, or cycling. You probably know it as “cardio.”
By definition, aerobic exercise means “with oxygen.” Your breathing and heart rate will increase during aerobic activities. Aerobic exercise helps keep your heart, lungs, and circulatory system healthy.
Aerobic exercise differs from anaerobic exercise. Anaerobic exercises, such as weightlifting or sprinting, involve quick bursts of energy. They’re performed at maximum effort for a short time. This is unlike aerobic exercises. You perform aerobic exercises for a sustained period of time.
Explanation:
Aerobic exercise is physical exercise of low to high intensity that depends primarily on the aerobic energy-generating process. "Aerobic" is defined as "relating to, involving, or requiring free oxygen", and refers to the use of oxygen to adequately meet energy demands during exercise via aerobic metabolism
Does the mass of the objects you are charging influence the amount of electric force created in an electric field?
Explanation:
Both gravitational and electric forces decrease with the square of the distance between the objects, and both forces act along a line between them. In Coulomb's law, however, the magnitude and sign of the electric force are determined by the electric charge, rather than the mass, of an object.
The difference between a Scalar quantity and a Vector quantity?
Answer:
A quantity that has magnitude but no particular direction is described as scalar. A quantity that has magnitude and acts in a particular direction is described as vector.
Displacement a combination of
Answer:
Displacement a combination of distance
Explanation:
I'm not sure eh
The speed of a 1200 kg car increases from 5 to 29 m/s in 12 s.
What force accelerated the car?
Answer:I think I’m not sure But I think that the force that would be accurated the car would be friction or something like that and to solve the equation you would do f/m
Explanation:
It just makes sense
A scientist heats a red powder. Upon heating, a liquid and a gas form.
Which type of substance is the red powder?
O A. anion
B. an isotope
O c. an element
O D. a compound
Answer:
Compound
Explanation:
ANSWER QUICK PLEASE!!! (WORTH 15 POINTS!)
Kellie is hopping on one foot. Kellie has a mass of 650
newtons and her foot has an area of 0.10 m2.
How much pressure is exerted by her foot on the ground
with each hop?
Answer:
650 N / 0.10 m2 = 6500 Pa
Explanation:
The pressure that could be exerted on the ground with each top should be 6,500 Pa
Given that,
The mass is 650 newtons.The area should be 0.10m^2We need to determine the pressure.
So, the following formula should be used.
[tex]= \frac{Mass}{area}\\\\= \frac{650}{0.10} \\\\[/tex]
= 6,500 Pa
Therefore we can conclude that the pressure that could be exerted on the ground with each top should be 6,500 Pa.
Learn more about the pressure here: brainly.com/question/23358029
Fred is conducting a controlled experiment to test whether using a grow light at night will help a tomato plant grow faster. Below are the steps to Fred's experiment: Plant tomato plants in two separate, but identical, flowerpots. Place the flowerpots in the same area outside during the day. At night, bring both flower pots inside and place one in the dark and one under a grow light. Give the plants the same amount of food and water each week. Measure the growth of the plants. Draw conclusions based on the data collected. Which of the following variables must Fred hold constant in this experiment?
Answer:
the type of tomato plants used.
Explanation:
7. Roughly how much did the cost of PV solar panels decrease between 2008 and 2015?
40%
80%
60%
20%
US 0
Brad has three beakers of water. Each beaker contains 500 mL of water. The temperature of the water in the first beaker is 40°C. The water in the second beaker is at 100°C, and the water in the third beaker is at 60°C. As part of a lab experiment he will carefully combine the water in all three beakers. He predicts that the combined water will have a final temperature of 50°C.
Evaluate Brad’s claim and clearly state whether he is correct or not. Explain your answer to support your evaluation.
Explanation:
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Calculate the volume of this regular solid.
A cone 4.5 centimeters high with a radius of 3 centimeters. Label B is pointing to the circular base of the cone.
What is the volume of the cone?
Use the button on your calculator to complete this problem.
Round at the end to the nearest hundredth.
Answer:
42.41
Explanation:
Example 4:
Find the index of refraction for diamond if the speed of light in diamond is 1.24 x 10m/s
Use the proper FORMAT
Answer:
Given speed of light in diamond =1.24*10m/s
speed of light (c) =3*10^8m/s
refractive index of diamond =3*10^8/1.24*10=2.41*10^7m/s
A skier skies down a slope with an average speed of 50 km/s. How far does the skier travel in 5 minutes?
Answer:
15000000 m
Explanation:
From the question,
Speed (S) = Distance(d)/Time(t)
S = d/t....................... Equation 1
Make d the subject of the equation
d = St..................... Equation 2
Given: S = 50 km/s = 50000 m/s, t = 5 minutes = 5*60 seconds = 300 seconds
Substitute these values into equation 2
d = 50000(300)
d = 15000000 m
Hence the skier travels 15000000 m
A protein-digesting enzyme when mixed with starch solution would
Answer:
It would produce fat..........
PLEASE HELP !!
Elements in period 2 on the periodic table all have blank
electron shells.
Answer:
Two orbitals for their electrons and six in the 2p subshell
Explanation:
Hope this helps :)
Explain the difference between mass and weight. Also, what happens to your mass and your weight if you were to travel to the moon? Why?
PLEASE HURRY!!
A toy remote car drives in a circle. It makes 2 revolutions in 20 seconds. What is the period of the object?
Answer:
T = 10 seconds
Explanation:
Given that,
A remote car makes 2 revolutions in 20 seconds.
We need to find the period of the object.
It means, it will make [tex]\dfrac{2}{20}=0.1\ \text{revolutions/second}[/tex] .
lt T be the period of the object. So,
[tex]T=\dfrac{1}{0.1}\\\\T=10\ s[/tex]
It will take 10 seconds for one revolution.
if a truck is accelerating at 39 MSS and it crashes into a tree within 45,000 in a force what was the mass of the truck?
Answer:
Mass of the truck is [tex]1154[/tex] Kg
Explanation:
As we know that
Force is the product of mass and acceleration.
F = m * a
Here acceleration, a [tex]= 39[/tex] m/s^2
Force, F [tex]= 45000[/tex] Newton
Mass = [tex]\frac{F}{a}[/tex]
Mass
[tex]= \frac{45000}{39} \\= 1154[/tex] Kg
1. What is the velocity of an 250-kg that has 6,250 J of energy?
Please help
Explanation:
KE = 1/2mv^2
6,250 J =1/2(250kg) v ^2
6250 J = 125kgv^2
125kg. 125kg
v =
[tex] \sqrt{50} [/tex]
What came first, a chicken or an egg
Answer:
a chicken
a chicken came first
Answer:
A Chicken
A chicken came first
PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer this correctly!!!! (40pts)
Answer:
Explanation:
According to this site, "The purpose of these curved wingtips is to prevent high air pressure above the airplane from flowing over and under the wings."
Hope this helps!
Anita rides a bicycle to market 60km from her house in 3.5 hours. What is Anita’s
speed?
Anyone able to help with these questions, will give brainliest to first correct anwser
Answer:
b
Explanation:
I did this question earlier
A lift that weighs 300 N moves a man with a weight of 950 N upwards by 12 m. How much work is done to move the lift this height?
The total work done to move the lift to this height if, A lift that weighs 300 N moves a man with a weight of 950 N upwards by 12 m, is 15000 Joules.
What is work done?When an object is moved over a distance by an external force, at least a portion of that force must be applied in the direction of the displacement. This is known as work in physics.
Given:
A lift that weighs 300 N moves a man with a weight of 950 N upwards by 12 m,
Calculate the total force as shown below,
Total force = Lift weight + man weight
Total force = 300 + 950
Total force = 1250 N
Calculate the work done as shown below,
The work done = Total force × displacement by total force
The work done = 1250 × 12
The work done = 15000 Joules
Thus, the total work done is 15000 joules.
To know more about work done:
https://brainly.com/question/29762840
#SPJ2
What happens to the current in the other two lamps
if one lamp in a three-lamp parallel circuit burns out?
Answer:
If one of the filaments burns out, the resistance and the potential difference across the other lamps will not change; therefore, their currents will remain the same.
Explanation:
Answer:
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1. If you were the organizer of this dance event, are you favor in moving the date on May? Why
or why not?
Answer:
I am in favor of the dance event being in may. Because it is nice weather outside, more people will decide to come and spend their time there. It is also light in the evening in may, meaning that you could have the dance event at any time, and younger people will still feel safe at night, meaning their parents will be more open to lwtting kids go.