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Natalka [10]
3 years ago
13

When grocery shopping, the mass of the cart changes as you start to fill up your cart. How does the change in mass of your cart

change the force you apply to the cart?
Group of answer choices
a. The force will need to increase

b. The force will need to decrease

c. The force does not need to change
Physics
1 answer:
Tasya [4]3 years ago
4 0

Answer:

b

Explanation:

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What force is required to move 7 M if the work done is 9 J
Murrr4er [49]

Answer:

1.29 N

Explanation:

The equation for force (with work and distance) is:

Force=\frac{Work}{distance}

We can plug in the given values into the equation:

Force=\frac{9J}{7m}$\approx1.29 N

5 0
2 years ago
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All of the following are good tips for controlling your emotions EXCEPT:
TEA [102]

Answer:

B

Explanation:

Building up emotions can be bad for your health and hurt you mentally all other options are good.

8 0
3 years ago
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A girl delivering newspapers covers her route by traveling 3.00 blocks west, 4.00 blocks north, and then 6.00 blocks east. What
Harrizon [31]

The concepts used to solve this problem are those related to the Pythagorean theorem for which we will calculate the distance and the pitch.

According to the attached diagram we have that the expression of the resulting displacement is

R = \sqrt{(3b)^2+(4b)^2}

Therefore the resultant displacement of the girl is

R = \sqrt{(9b^2+16b^2)}

R = \sqrt{25b^2}

R = 5b

Therefore the girl has displaced around of 5 blocks

4 0
3 years ago
A 1500 kg car moving with a speed of 20 m/s collides with a utility pole and is brought to rest in 0.30 s. Find the magnitude of
storchak [24]

Answer:

-100000 N.

Explanation:

Force: This can be defined as the product of the mass of a body and it's acceleration. The S.I unit of Force is Newton(N). The Formula of force is given as,

F = ma ........................... Equation 1

Where F = Average force exerted on the car, m = mass of the car, acceleration of the car, a = acceleration of the car.

a = (v-u)/t..................... Equation 2

Where v = Final velocity, u = Initial velocity, t = time.

Substitute equation 2 into equation 1

F = m(v-u)/t............. Equation 3

Given: m = 1500 kg, u = 20 m/s, v = 0 m/s (brought to rest), t = 0.3 s.

Substitute into equation 3

F = 1500(0-20)/0.3

F = 1500(-20)/0.3

F = -100000 N.

Note: The negative sign is due to the fact that the force exerted on the car by the pole is equal and opposite the force of the car.

7 0
3 years ago
Sallie's recipe calls for a total of cups of flour to make biscuits. It says to use cup of flour from the total for rolling out
zloy xaker [14]

Answer:

Answer is D

Explanation:

7 0
3 years ago
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