Answer:A:
To analyze how a gizzard works.
Explanation:
An object falls freely from rest through a vertical distance off 44.0m in a time of 3.0s. What value should be quoted for the acceleration of free fall?
Answer:
9.8m\sec
Explanation:
free falling neglecting the air drag so its acceleration will be the acceleration due to gravity
The Demon Drop ride at the amusement park falls freely for 1.8 s after
starting from rest.
What is its displacement the end of 1.8 s?
Answer:
Explanation:
a = -g = -9.80 m/s squared
d o = 0
v o = 0
t = 1.8s
unkown:d = ?
v = ?
a radioactive tracer has a half-life of 2 hours. how much of a 2500g sample will be avalible after 18 hours
Answer:
i believe the answer is 2.44140625 grams remaining
Answer:
4.88g
Explanation:
We must first calculate how many half-life there are in 18 hours, knowing that each half life takes 2 hours.
18/2 = 9 Half life
Now, knowing this we can calculate the number of grams by applying 9 times the half life.
2500/2= 4.88 grams
Which means that after 18 hours there are 4.88 grams.
Someone help me please.
Ans
2075 Set B Q.No. 90 A water reservoir fank of capacity
is situated at a height of 20 m from the water level. W
be the power of an electric motor to be used to fill the
3 hours? Efficiency of motor is 70%.
A car travles a distance of 540km in 6 hours. What speed did it travel at?
An example of gravitational potential energy is the energy of:
a. any chemical
b. any object at a height
c. all moving objects.
What is the difference between precision and accuracy of measurement.
Answer:
Precision: closeness of your measurements to each other
Accuracy: closeness of your measurements to a specific value
Hope this helps
Explanation:
HELP ASAP!! WILL TRY TO GIVE BRAINLIEST
How are ribosomes different from other complex animal cell organelles?
An electric geyser consumes 2.2units of electrical energy per hour of its use. It is designed to work on 220v. What is the resistance of this device? Find the cost of energy consumed if each unit costs Rs 6.00.
Answer:
Explanation:
The resistance of this device is determined by using the formuia from Ohms Law:
V = IR
where; V = voltage
I = current
R = resistance
From the above equation:
R = V/ I ---- (1)
And
I = P/V --- (2)
If 1 unit = 1 KWH = 3.6 × 10⁶ J
Then;
2.2 units = (3.6 × 10⁶ × 2.2)
= 7.92 × 10⁶ J
So, Energy = 7.92 × 10⁶ J
Also:
Power = energy/time
Power = 7.92 × 10⁶ J / 1 hour
Power = 7.92 × 10⁶ J / 3600 seconds
Power = 2200 Watts
From equation (2)
I = P/V
I = 2200/220
I = 10 A
Recall that:
Resistance R = V/I
Resistance R = 220/10
Resistance R = 22 ohms
SO, if 1 unit costs = Ts 6.00
Then the cost of 2.2 unit = 2.2 ( Rs 6.00)
= Rs 13.20
Given an objects momentum and velocity which equation can be used to calculate the objects mass
HELP ME PLEASE!!!!!! A couch is pushed with a force of 79 N and moves a distance of 7 m across the floor. How much work was done in moving the couch?
What is the total force of an object which has a mass of 150kg and is accelerating at 2m/s/s?
Answer:
[tex]\boxed {\boxed {\sf 300 \ Newtons }}[/tex]
Explanation:
Force can be found by multiplying the mass by the acceleration.
[tex]F=ma[/tex]
The mass is 150 kilograms and the acceleration is 2 meters per second per second, or 2 meters per square second.
[tex]m= 150 \ kg \\a= 2 \ m/s^2[/tex]
Substitute the values into the formula.
[tex]F= 150 \ kg * 2 \ m/s^2[/tex]
Multiply.
[tex]F= 300 \ kg*m/s^2[/tex]
We know that 1 kilogram meter per square second is equal to 1 Newton. Therefore our answer of 300 kg*m/s² is equal to 300 N[tex]F= 300 \ N[/tex]
The force of the object is 300 Newtons.
Using F=mXa
1.
Maria's bicycle has a mass of 18.0 kg. What is the net force needed to attain the
acceleration of 1.62 m/s2?
Answer:
29.16 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 18 × 1.62
We have the final answer as
29.16 NHope this helps you
Of all the planets in our solar system, Jupiter has the greatest gravitational strength. If a 1.5 kg pair of running shoes would weigh 34.65 Newtons on Jupiter, what is the strength of gravity there.
Answer:
gₓ = 23.1 m/s²
Explanation:
The weight of an object is on the surface of earth is given by the following formula:
[tex]W = mg[/tex]
where,
W = Weight of the object on surface of earth
m = mass of object
g = acceleration due to gravity on the surface of earth = strength of gravity on the surface of earth
Similarly, the weight of the object on Jupiter will be given as:
[tex]W_{x} = mg_{x}[/tex]
where,
Wₓ = Weight of the object on surface of Jupiter = 34.665 N
m = mass of object = 1.5 kg
gₓ = acceleration due to gravity on the surface of Jupiter = strength of gravity on the surface of Jupiter = ?
Therefore,
[tex]34.65 N = (1.5 kg)g_{x}[/tex]
[tex]g_{x} = \frac{34.65 N}{1.5 kg}[/tex]
gₓ = 23.1 m/s²
A jeep starts from the state of rest. If its velocity becomes 60 km/hr in 5 minutes, (i)
What is the acceleration of the jeep? (ii) What is the distance covered by the jeep?
Answer:
acceleration= velocity/time
60km/hr = 60 km /60 mins = 1km/min so accn = 1km/5= 1000m/5 = 200m/m
v²= u²+2as
(1000)² = 0²+ 2 x 200 x s
(1000)²/400= s
2500m
A circuit constructed on a circuit board is shown below.
Which of the following schematic circuits correctly represents the circuit shown?
Answer:
see attached
Explanation:
The drawing shows a battery connected to two lamps in series. There is no switch in the circuit. The schematic below reflects this.
what is the speed of light at 15°c
Answer:
calculation presented a speed of 125,000 miles per second (200,000 km/s).
Explanation:
Pretend you are explain net force to someone much younger than you. Explain how to calculate net force and how the net force determines the object’s motion.
Answer:
you can tell them it is the amount of "push" on an object then you can explain using a soccer ball being kicked or a cart being pushed
Explanation:
It is safer for a car driver to be wearing a seat belt, compared with not wearing a seat belt, if the car is involved in a collision.
Explain why.
Explanation: It is because when a car is moving both the car and the driver is in inertia of motion. When a car is involved in collision it comes to a sudden stop and the car comes into inertia of rest whereas the person still in inertia of motion moves forward and might result in major injuries. But this can be prevented by wearing a seatbelt
Hope it helps :)
A bamboo plant grows at an average rate of 3.75 cm/h. How much will it grow inc6 hours
Answer:
22.5 inches in 6hours
Explanation:
Because it tells us it grows 3.75 an hour which is an ratio of 3.75 to 1 so you would just multiply 3.75 with 6
Hope this helps
Converging lenses are _____ at the center and _____ at the edges. a. thickest, thinnest b. thinnest, thickest
Answer:
Converging lenses are thickest at the center and thinnest at the edges.
Explanation:
Lenses are transparent medium that refracts all incident light. Converging lens is one of the type of lens that we have and they are also known as convex lenses. Converging lenses are formed from the combination of two convex mirror. They are thickest at the center and thinnest at the edges. All incident light on a convex lens converges after refraction
3- Our stomachs contain hydrochloric acid (pH 1.5-3.5). Why do you suppose this
helps our bodies? How does the stomach lining avoid what happened to the milk?
4. Explain how a buffer can helps maintain a stable internal environment.
(homeostasis)
Answer:
i hardly havent got teach this sorry
You paddle a canoe with a force of 325 N. You and the canoe have a
combined mass of 250 kg. What is the acceleration of the canoe?
A. 0.8 m/s2
B. 0.3 m/s2
C. 1.9 m/s2
D. 1.3 m/s2
ANSWER FAST PLZZ!!
Egypt is conducting an experiment on speed. She is measuring the speed of another middle schooler as she walks from science class to math class in her school. The graph below represents the speed of one of her friends as she walks the 20 meters over 5 minutes.
Speed Graph
Answer:
See the answer below
Explanation:
The two correct options are:
1. The student traveled the fastest between 4 and 5 minutes
2. The average speed of the student is 4 meters per minute
Between 4 and 5 minutes, the approximate distance of 7 meters covered by the student is the longest of all the distances covered per minute. Since speed is a measure of distance covered relative to time, it means that the student traveled the fastest between these periods.
The average speed is calculated by dividing the total distance traveled by a body by the total time taken to cover the distance.
From the graph:
Total distance covered = 20
Total time taken = 5
Average speed = 20/5 = 4 meters per minute
All the remaining conclusions are incorrect or indeterminate going by the information on the graph.
calculate the kinetic energy of a Toyota Camry car traveling with a velocity of 40 m/s and has a mass of 1120 kg
Answer:
896,000 JExplanation:
The kinetic energy of an object can be found by using the formula
[tex]k = \frac{1}{2} m {v}^{2} \\ [/tex]
m is the mass
v is the velocity
From the question we have
[tex]k = \frac{1}{2} \times 1120 \times {40}^{2} \\ = 560 \times 1600[/tex]
We have the final answer as
896,000 JHope this helps you
What are the units for speed velocity and acceleration?
Answer: Speed and velocity are both measured using the same units. The SI unit of distance and displacement is the meter. The SI unit of time is the second. The SI unit of speed and velocity is the ratio of two — the meter per second .
Explanation: Hopefully this helps you.
I'm gonna need some help sorry :(
What is produced by converging trade winds?
easterlies
horse winds
trade winds
doldrums
Answer:
Doldrums
Explanation:
Trust me and need more to write to post answer
The particles of a substance in which state of matter have the least energy?
A. Liquid
B. Solid
C. Gas
D. Vapor
Answer:
B. Solid
Explanation:
Solid particles have the least amount of energy, and gas particles have the greatest amount of energy. The temperature of a substance is a measure of the average kinetic energy of the particles. A change in phase may occur when the energy of the particles is changed. There are spaces between particles of matter.
hope i helped have a great day
Answer:
B. Soild
Explanation:
I dont feel like explaning (:
2
1 point
Which of the following is an example of an allele?
axial flowers
all of the above
1
a
2
ОО
AA
3
Previous
Answer:
AA
Explanation:
This is flower which is the example of allele