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Firdavs [7]
2 years ago
8

What is the distance a bike travels at 38 km/he for 4.5 seconds?

Physics
1 answer:
marshall27 [118]2 years ago
4 0

Answer:

2.36m/s

Explanation:

first you have change 38km/hr into m/s

then divide your answer with 4.5

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if a bowling ball hits a wall a force of 6 N, the wall exerts a force of how much back. on the bowling ball
grigory [225]
It would exert the same back right?
3 0
3 years ago
If the IMA of a machine is 2 and the effort force is 50 newtons, then the force applied to the resistance is _____. 48 N 50 N 25
zysi [14]

IMA stands for ideal mechanical advantage, which is the theoretical force amplification factor on an ideal mechanical device free of friction, deformations, etc.


If the applied force (effort) is 50N, then the force applied to the resistance is multiplied by the IMA=2 to get 100N.

7 0
2 years ago
Read 2 more answers
Can I also get help on this??
Xelga [282]

Answer:

25

Explanation:

8 0
2 years ago
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The accepted value for the density of iron is 7.87 g/cm3. a student records the mass of a 20.00 cm3 block of iron as 153.8 grams
dangina [55]
The density of an object can be calculated using the formula Density = Mass/Volume.

Experimental Density:

Density = 153.8g / 20.00 cm^3
Density = 7.69g/cm^3

Percent error equation:

% Error = | Theoretical Value - Experimental Value|/Theoretical Value * 100
% Error = | 7.87g/cm^3 - 7.69g/cm^3|/7.87g/cm^3 * 100
% Error = 2.29%

Therefore a is the correct answer.
6 0
2 years ago
Given that a lever has a mechanical advantage of 6.0 and is 100% efficient, if the resistance is to be lifted 2.0 inches, then h
Shalnov [3]
The mechanical advantage of a machine is the ratio of the force produced by the machine to the force applied to it. Therefore, we may calculate the applied force using:
Mechanical advantage = force by machine / force applied
6 = 2 / force applied
Force applied = 1/3

Thus, the distance that the effort must move will be 1/3 inch
5 0
3 years ago
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