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Triss [41]
2 years ago
7

Approximately how many calories should a person who weighs 160 pounds consume per day

Physics
2 answers:
morpeh [17]2 years ago
8 0
Until the age of 3 or 4 or 5, you can relate a person's weight to the
amount of energy he needs to take in every day.  After that, you can't.
It starts to depend on a lot of other things, besides just body weight.  

Here's a silly way to think about this:

Let's say we have two people.
 
-- One person is 30 years old, height 5-ft 8-in, weight 160 pounds.
Employed as a mail carrier, walks a 7-mile route every day.

-- The second person is 9 years old, height 4-ft 6-in, weight 160 pounds.
Enrolled in the 4th Grade.  Rides the bus to and from school.
After dinner and homework, watches TV, plays video games, or surfs the web.

Both of these people weigh 160 -pounds.
Do you think they should both get the same number of daily calories ?


vichka [17]2 years ago
3 0
1130 calories about
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Terry can ride 30 miles in 2 hours. If his riding speed is
marishachu [46]

Answer:

Explanation:

Terry can ride at a speed of

V = 30 miles in 2hours

Speed = distance / time

V = 30 /2

V = 15 mile/hour

So, we want to know the distance traveled in 1.7hours

Then,

Speed = distane / time

Distance = speed × time

Distance =15 × 1.7

Distance = 25.5 miles

So, the distance traveled in 1.7hours is 25.5 miles

5 0
3 years ago
Read 2 more answers
How could you tell whether or not you are in a magnetic feild
Aleks04 [339]
Magnetic fields are areas where an object exhibits a magnetic influence. The fields affect neighboring objects along things called magnetic field lines. A magnetic object can attract or push away another magnetic object. You also need to remember that magnetic forces are NOT related to gravity. The amount of gravity is based on an object's mass, while magnetic strength is based on the material that the object is made of. 
7 0
3 years ago
What force is needed to give a 0.25-kg arrow an acceleration of 196 m/s/s
kakasveta [241]
Force (f) = ?

Acceleration (a) = 196 m/s^2

Mass (m) = 0.25 kg

F = (m) • (a)

F = (0.25) • (196)

F = 49 N

Answer : 49 N

I hope that helps you!! Any more questions??

8 0
3 years ago
Read 2 more answers
When velocity is positive and acceleration is negative, what happens to the object’s motion?
xenn [34]

Answer:

Option (D) : The object slows down.

4 0
3 years ago
The drag on a pitched baseball can be surprisingly large. Suppose a 145 g baseball with a diameter of 7.4 cm has an initial spee
kupik [55]

Answer:

<h2>Part A)</h2><h2>Acceleration of the ball is 10.1 m/s/s</h2><h2>Part B)</h2><h2>the final speed of the ball is given as</h2><h2>v_f = 35.3 m/s</h2>

Explanation:

Part a)

As we know that drag force is given as

F = \frac{C_d \rho A v^2}{2}

C_d = 0.35

A = \frac{\pi d^2}{4}

A = \frac{\pi(0.074)^2}{4}

A = 4.3 \times 10^{-3} m^2

v = 40.2 m/s

so we have

F = \frac{0.35\times 1.2 (4.3 \times 10^{-3})(40.2)^2}{2}

F = 1.46 N

So acceleration of the ball is

a = \frac{F}{m}

a = \frac{1.46}{0.145}

a = 10.1 m/s^2

Part B)

As per kinematics we know that

v_f^2 - v_i^2 = 2 a d

v_f^2 - 40.2^2 = 2(-10.1)(18.4)

v_f = 35.3 m/s

4 0
3 years ago
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