Your shopping cart has a mass of 65 kilograms. In order to accelerate the shopping cart down an aisle at 0.30 m/s2 What force would you need to use or apply to the cart. I don't know how to solve this

Answers

Answer 1

Answer:
Use Newton's second law of motion:

Force = (mass) x (acceleration) .

Take that formula, write ' 65 kg ' in place of 'mass', and
write ' 0.3 m/s² ' in place of 'acceleration', and solve it
for Force.

I know absolutely positively that you can take over and finish it
now, because only an hour ago, you thanked me for solving the
exact same problem for somebody else, and the entire solution
was right there, WITH the answer !

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If 20 beats are produced within one second, which of the following frequencies could possibly be held by two sound waves traveling through a medium along a common path at the same time? A. 38 Hz and 63 Hz
B. 22 Hz and 42 Hz
C. 47 Hz and 55 Hz
D. 18 Hz and 26 Hz

Answers

Answer:

B. 22 Hz and 42 Hz

Explanation:

The beat is an interference pattern which occurs when two waves of slightly different frequencies meet each other. The beat is heard as a periodic variation, whose frequency (called beat frequency) is equal to the absolute value of the difference between the frequencies of the individual waves:

$f_B = |f_1-f_2|$

In this problem, we are told that 20 beats per second are produced, so the beat frequency is

$f_B = 20 s^(-1) = 20 Hz$

Therefore, we must find the two waves which have a difference in frequency equal to this value, 20 Hz. Let's see each choice:

A. 38 Hz and 63 Hz --> $f_B = |38 Hz-63 Hz|=25 Hz$ --> NO

B. 22 Hz and 42 Hz --> $f_B = |22 Hz-42 Hz|=20 Hz$ --> YES

C. 47 Hz and 55 Hz --> $f_B = |47 Hz-55 Hz|=8 Hz$ --> NO

D. 18 Hz and 26 Hz --> $f_B = |18 Hz-26 Hz|=8 Hz$ --> NO

So, the correct choice is

B. 22 Hz and 42 Hz

The right answer for the question that is being asked and shown above is that: "B. 22 Hz and 42 Hz." If 20 beats are produced within one second, the frequencies that could possibly be held by two sound waves traveling through a medium along a common path at the same time is B. 22 Hz and 42 Hz

A traveler first drives 18.6 km east, then 30.3 km southeast, and finally 10.7 km south. Find the traveler's total displacement ?

Answers

If a traveler first drives 18.6 km east, then 30.3 km southeast, and finally 10.7 km south then the traveler's total displacement would be 51.30 kilometers.

What is displacement?

An object's position changes if it moves in relation to a reference frame, such as when a passenger moves to the back of an airplane or a professor moves to the right in relation to a whiteboard. Displacement describes this shift in location.

As given in the problem If a traveler first drives 18.6 km east, then 30.3 km southeast, and finally 10.7 km south then we have to find the traveler's total displacement,

the total displacement in the east direction = 18.6 + 30.3Cos45°

the total displacement in the east direction = 40 km

the total displacement in the south direction = 10.7 + 30.3Cos45°

the total displacement in the south direction = 32.12 km

The net resultant displacement = √(40² + 32.12²)

The net resultant displacement = 51.30 kilometers

Thus, the traveler's total displacement comes out to be 51.30 kilometers.

Learn more about displacement here, refer to the link;

brainly.com/question/10919017

#SPJ2

East: 18.6+30.3/(sqrt2)
South: 19.7+30.3/(sqrt2)
Total displacement: sqrt(east^2+south^2) is 57.3 km

What is an anemometer used to measure?

Answers

An anemometer is used to measure wind speed. It is commonly found in weather stations.

Answer:

air speed

Explanation:

took the exam

An increase in which quantity will result in an increase in momentum?

Answers

Momentum = (mass) x (velocity)

(Remember that momentum is a vector ... it has a direction.
Its direction is the same as the velocity.)

An increase in either mass or velocity will increase the momentum.

It's pretty hard to increase the mass of a moving object, so I think
the better answer is velocity .

The brightest spot where the light directly hits an object.

Answers

Answer:

The highlight

What is the acceleration of all objects due to gravity? What does this mean?

Answers

Every body that has larger mass has a field of attraction called gravitational field. All objects abandoned in the region of this great body is attracted to its center. The large body prints the object an acceleration which is called the acceleration of gravity.

Gravity acts on everything. The force if gravity is equal to 9.8 m/s^2

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