The mass of a stroller and the child it carries is 23.7 kg. A man pushes the stroller with a force of 142 N at an angle of 38.0° to the vertical. The stroller experiences a friction force of 24.0 N due to the brake accidentally being on. What is the stroller's acceleration forward?A. 5.99 m/s2
B. 3.90 m/s2
C. 2.68 m/s2
D. 4.98 m/s2

Answers

Answer 1
Answer: the horizontal resultant force applied is 142*Cos(38) which is 135.62N

24N of opposing force
therefore the total force acting on the stroller is 135.62-24=
111.62N

applying the formula f=ma
where f is force
m= mass
a= acceleration
plugging the values we get 
the stroller's acceleration forward as 3.90 m/s^2



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what is the difference in the charges on a balloon rubbed in your hair and a glass  rod rubbed with silk? why?

Answers

The balloon steals electrons from your hair, leaving the hair positively charged, and the balloon negatively charged. It causes the hair to be apart from each other, because they have the same charge. Glass has a weaker hold on electrons, and silk absorbs the lost electrons.

Answer:The balloon steals electrons from your hair, leaving the hair positively charged, and the balloon negatively charged. It causes the hair to be apart from each other, because they have the same charge. Glass has a weaker hold on electrons, and silk absorbs the lost electrons.


While driving on a rural road, your right wheels run off the pavement. You should hold the steering wheel firmly andA: Immediately steer left, back toward the paved surface of the road.B: Steer to the right, toward the shoulder or ditch.C: Steer in a straight line while gently slowing down.

Answers

Answer:

The answer is C. Steer in a straight line while gently slowing down

Explanation:

The following are advised when your cars go off the pavement while driving;

firstly, Do not panic.

ensure you hold on to your steering wheel tightly.

keep Steering straight ahead.

ensure you Stay on the shoulder.

Ease up on the accelerator and brake gently.

When you  know you can safely do so, turn back on the road at a much lower speed.

Final answer:

When the right wheels run off the pavement while driving, you should hold the steering wheel firmly, continue driving straight, and slowly reduce your speed. This avoids the dangers of immediately steering back onto the road or towards the shoulder.

Explanation:

While driving on a rural road, if your right wheels run off the pavement, the safe response would be to hold the steering wheel firmly and steer in a straight line while gently slowing down. Immediately steering back towards the paved surface (option A) can cause your vehicle to roll or veer into oncoming traffic. Steering towards the shoulder or ditch (option B) risks hitting obstacles or further losing control. By continuing straight at a controlled, reduced speed, you can safely return to the pavement when there's a break in the roadside or ample space to move back onto the road.

Learn more about Safe driving response here:

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Which statement best describes the equation caco3 2hcl → cacl2 co2 h2o?

Answers

it is balanced so the coefficient would be 1 and it seems to be dehydration synthesis?
To figure if this equation is balanced or not, we must determine if the reactants are the same as the products.

Ca=1                     Ca=1
C=1                       C=1
O=3                       O=2+1=3
H=2                       H=2
Cl=2                      Cl=2

Since the amount of each element on the reactants side is equivalent to what is on the products side, we have a balanced equation. 

Final answer: This equation is balanced. 

Amusement parks are a great place to see Newton's laws of motion in action. Choose your favorite ride and describe the parts of the ride that illustrate each of Newton's laws of motion.

Answers

I can't choose your favorite ride for you.

Ski lift carry people along 150 m cable up the side of a mountain. Riders are lifted a total of 75 m in elevation. What is the ideal mechanical advantage of the ski lift?

Answers

Ideal Mechanical Advantage (IMA) can be found by using the formula:

IMA = ID/OD

ID = Input Distance

OD = Output Distance

In the question, we are given:

ID = 150

OD = 75

Now, solve the expression with what we have.

IMA = 150/75

IMA = 2

Therefore, the IMA is 2.

Best of Luck!

List 3 pieces of evidence for the Earth’s spherical shape

Answers

Answer:

1.time zones

2.The coriolis effect

3. triangles

Explanation:

1. day and night happen at different times at different places; it's always day somewhere and night another.

2. the coriolis effect means freely moving things (like cannonballs or hurricane  winds) are deflected to the right - but only if your north of the equator if you're  south of the equator they're deflected left.

3. if you walk a certain distance and make three right angle you can successfully make a triangles with three 90 degree angles which is impossible on a flat surface.