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Anna11 [10]
3 years ago
9

How much force, in g cm/s2

Physics
2 answers:
scoray [572]3 years ago
3 0
In this question force is measured in  g cm/s2 so we know that to get the answer we times g by cm/s2 
50 × 20 = 1000
Vinvika [58]3 years ago
3 0

Answer:

F=1000\frac{gr \times cm}{s^{2} }

Explanation:

Givens

m=50g

a=20cm/s^{2}

To find the force exerted by the golf ball, we need to use Netwon's second law, which is defined as

F=ma

In words, when we apply a force to an object with mass m, the object will accelerate at a.

Now, replacing all given values, we have

F=ma\\F=50g(20cm/s^{2} )\\F=1000\frac{gr \times cm}{s^{2} }

Therefore, the force exerted by the golf ball is F=1000\frac{gr \times cm}{s^{2} }

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A microwave oven operates on the principle that application of a high-frequency field causes electrically polarized molecules su
Tema [17]

Answer:

a

The time it would take the beef to reach a temperature of 0⁰C is t= 662 sec = 11.93 min

b)

The time it would take to heat the beef to uniform temperature of 80⁰C is

t = 365 sec =5.93 min

c

 Efficient absorption of Microwave power is in regions of liquid water . Hence if the food or the microwave irradiation  is not uniform, the power will be absorbed non-uniformly, resulting in a non-uniform temperature rise. Defrost region will absorb more energy per unit volume than frozen region.if food is of low thermal conductivity, there will be insufficient time for heat conduction to make the temperature more uniform.Use of low power allows more time for conduction to occur.  

Explanation:

The explanation is shown on the first second and third uploaded image

6 0
3 years ago
A stone is dropped from the top a 45m hign building how fast will it moving when it reaches the ground? Ande what will its veloc
posledela

Answer:

29.7 m/s fast, velocity is 29.7 m/s

Explanation:

Applying,

v² = u²+2gs...................... Equation 1

Where v = final velocity, u = initial velocity, g = acceleration due to gravity, s = distance.

Given: u = 0 m/s (dropped from height), s = 45 m

Constant: g = 9.8 m/s²

Substitute these values into equation 1

v² = 0²+2×9.8×45

v² = 882

v = √(882)

v = 29.7 m/s.

Hence the stone will be moving 29.7 m/s fast and the velocity is also 29.7 m/s

7 0
3 years ago
How long would it take for a resultant upward force of 100 N to increase the speed of 50 Kg object from 100 m/s to 150 m/s ?
Wewaii [24]

Answer:

force = mass \times acceleration \\ 100 = 50 \times a \\ a = 2 \:  {ms}^{ - 2}  \\ from :  \:  \: v = u + at \\ 150 = 100 + (2 \times t) \\ 50 = 2t \\ time = 25 \: seconds

6 0
2 years ago
Billy pulls his friend Sue on a sled at a constant velocity with a horizontal force of 200 N. The weight of the sled and Sue is
Nezavi [6.7K]
Pulls would be the logical answer.
6 0
3 years ago
The efficiency of a squeaky pulley system is 73 percent. The pulleys are usedto raise a mass to a certain height. What force is
larisa86 [58]

The efficiency of the machine is defined as

\eta = \frac{W_{out}}{W_{in}}

Here

Work out is the work output and Work in is the work input

To find the Work in we have then

W_{in} = \frac{W_{out}}{\eta}

W_{in} = \frac{mgh}{\eta}

Replacing with our values

W_{in} = \frac{(58)(9.8)(3)}{73\%}

W_{in} = 2335.89J

The work done by the applied force is

W = Fd

Here,

F = Force

d = Distnace

Rearranging to find F,

F = \frac{W}{d}

F = \frac{2335.89J }{18}

F = 129.77N

Therefore the force exerted on the machine after rounding off to two significant figures is 130N

8 0
3 years ago
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