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3 years ago

Pleaseee help as soon as possible!!

Physics

1 answer:

Tatiana [17]3 years ago

5 0

Answer:

its right 2000 meters ask your teacher

Explanation:

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Dafna11 [192]

I believe you are correct, it is B: Diagnostic Services.

Diagnostic services are services like the staff at hospitals and the people who run machines that are related to medical needs.

If this is incorrect, please, don't refrain to tell me.

6 0

3 years ago

Read 2 more answers

What is the force if the mass is 75kg and the acceleration is 24.5m/s^2

Snowcat [4.5K]

Given;

mass m = 75 kg

acceleration a = 24.5 ms²

F = ma 

F = 75 kg * 24.5 ms²

= 1837.5 kg ms².

4 0

3 years ago

In cloud formation, water vapor turns into water droplets which get bigger and bigger until it rains.

True [87]

Answer:

a. get warmer.

Explanation:

When the water vaporous reach the upper layer of the atmosphere they get a cooler air to which they loose their temperature and condense to form clouds as a the temperature of the air increases.

It may be noted that the water looses its high amount of latent heat of vaporization to condense into water this significantly increases the temperature of the air in contact.

4 0

3 years ago

600 kg elephant runs at 5 m/s and jumpts onto a 100kg cart. If the coefficient of friction is .04 how far will the cart travel o

Minchanka [31]

Answer:

Eleven seconds.

Explanation:

Two keys are needed to solve this problem. First, the conservation of momentum: allowing you to calculate the cart's speed after the elephant jumped onto it. It holds that:

$m_ev_e+m_c\cdot0=(m_e+m_c)v_0\implies \\v_0=\frac{m_ev_e}{m_e+m_c}=\frac{600kg\cdot 5\frac{m}{s}}{700kg}=4.29\frac{m}{s}$

So, once loaded with an elephant, the cart was moving with a speed of 4.29m/s.

The second key is the kinematic equation for accelerated motion. There is one force acting on the cart, namely friction. The friction acts in the opposite direction to the horizontal direction of the velocity v0, its magnitude and the corresponding deceleration are:

$F_r = 0.04\cdot (m_e+m_c)g\implies a_r = 0.04\cdot g= 0.04 \cdot 9.8 \frac{m}{s^2}=0.39\frac{m}{s^2}$

The kinematic equation describing the decelerated motion is:

$v = -a_r t+v_0\\0 = -a_rt+v_0\implies \\t = \frac{v_0}{a_r}=\frac{4.29\frac{m}{s}}{0.39\frac{m}{s^2}}=11s$

It takes 11 seconds for the comical elephant-cart system to come to a halt.

7 0

4 years ago

Kelli has a mass of 42-kg, and she is sitting on a playground swing that hangs .4m above the ground. Her mom pulls the swing bac

finlep [7]

Answer:

3.4 m/s

Explanation:

may i be marked brainliest?

6 0

3 years ago