Ask question

Ask question

All categories

3 years ago

10

How do simple machines make work easier? A. They add energy to the work. B. They change the strength or direction of a force. C.

They reduce the speed of work. D. They increase the distance of applied forces.

2 answers:

WINSTONCH [101]3 years ago

6 0

Your answer is A. They add energy to the work.

Juliette [100K]3 years ago

6 0

A would be the correct answer

You might be interested in

at a major league baseball game, you are sitting a distance 52 meters from home plate. how much time passes between seeing josh

brilliants [131]

sound travels through air at around 340 - 350 m/s.

to cover 52 meters takes it, say, (52/345) = about 0.15 second

This would be the same time-lag even if it were not a major-league game,
except that you might not be able to get a seat 52 meters from home plate
at a little league or t-ball game.

8 0

3 years ago

Can you give me the definition of sound wave

katrin [286]

A sound wave is a wave of compression and rarefaction, by which sound is propagated in an elastic medium such as air.

3 0

3 years ago

Read 2 more answers

You need to determine the density of a ceramic statue. if you suspend it from a spring scale, the scale reads 32.4 n . if you th

Mandarinka [93]

Well, the density of the water is
${1000 \frac{kg}{ {m}^{3} } }$
so i believe that is what the question is asking for :)

4 0

3 years ago

Feliz [49]

Answer:

Speed changes at the rate of 24 m/s for each second over time.

Explanation:

We are told the object's acceleration is equal to 24 m/s²

Now we know that acceleration can also be defined as the rate of change of speed with time. Also speed has a unit known as m/s.

Thus, we can rephrase the acceleration in this question to mean;

Speed changes at the rate of 24 m/s for every second with time.

6 0

2 years ago

The angular velocity (in rpm) of the blade of a blender is given in. If θ=0rad at t=0s, what is the blade's angular position at

Liula [17]

Answer:

θ = 20.9 rad

Explanation:

In a blender after a short period of acceleration the blade is kept at a constant angular velocity, for which we can use the relationship

w = θ / t

θ = w t

if we know the value of the angular velocity we can find the angular position, we must remember that all the angles must be in radians

suppose that the angular velocity is w = 10 rpm, let us reduce to the SI system

w = 10 rpm $(\frac{2\pi rad}{1 rev}) ( \frac{1 min}{60 s} )$

= 1,047 rads

let's calculate

θ = 1,047 20

θ = 20.9 rad

7 0

3 years ago