PHYSICS HIGH SCHOOL

Which shows the correct order of forces, from weakest to strongest?o weak, strong, gravitational, electromagnetic
O electromagnetic, weak, strong, gravitational
O gravitational, weak, electromagnetic, strong
O weak, electromagnetic, gravitational, strong

Answers

Answer 1
Answer:

Answer: C. gravitational, weak, electromagnetic, strong

Explanation:

Got it right!!
Answer 2
Answer:

Answer:Helle dudes

Explanation:


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A 2.50 × 105 W motor is used for 26.4 s to pull a boat straight toward shore. How far does the boat move toward shore if a force of 4.20 × 104 N is applied by the motor?

Answers

The power of the motor is
2.50x10⁵ W
or 
2.50x10⁵ N m/s

The time it takes to pull the boat is
26.4 s

The force applied is
4.20x10⁴ N

The distance traveled by the boat is
2.50x10⁵ N m /s (26.4 s) / (4.20x10⁴ N)
 = 157.14 m

Answer:

157 m

Explanation:

right on ed2020

A diet rich in high-density lipoproteins (HDLs) can help cleanse and open arteries that are clogged with plaque.a. True
b. False

Answers

Correct answer choice is :


A) True


Explanation:


Lipoproteins are essentially a hub full of fat and cholesterol, along with a lipid layer that includes proteins named apolipoproteins. There are many kinds of lipoproteins, but the two most prominent ones are called Low-Density Lipoprotein and HDL.LDL particles are seldom related to as bad lipoprotein because of concentrations, dose-related, associated with atherosclerosis change. High-density lipoproteins (HDL) get fat molecules from the body's cells and take it back to the liver.
The correct answer for the question that is being presented above is this one: "TRUE." A diet rich in high-density lipoproteins (HDLs) can help cleanse and open arteries that are clogged with plaque. The statement that is presented is True.

Does It take 100 HP to lift a 1000 kg weight from ground to the 4th floor. True or False.

Answers

Answer:NOPE you need more

Explanation:

The power required to lift a weight depends on the force needed and the speed at which the weight is lifted. The force required to lift a weight is given by the equation F = m * g, where m is the mass of the object and g is the acceleration due to gravity (approximately 9.81 m/s² on Earth).

For example, if a 1000 kg weight is lifted 10 m in 10 seconds, the work done can be calculated as W = (1000 kg) * (9.81 m/s²) * (10 m) = 98100 J (Joules). The power required is work done per unit time P = (98100 J) / (10 s) = 9810 W (Watts), which is approximately 9.8 kW¹.

In terms of horsepower, since 1 horsepower is approximately equal to 746 Watts¹, the power required would be about 13.15 horsepower. So, it does not require 100 horsepower to lift a 1000 kg weight from the ground under these conditions. However, these calculations assume ideal conditions and do not take into account factors such as air resistance or mechanical inefficiencies. In real-world applications, more power might be needed.

P waves move through the crust at a speed of about 6.5 km/s. How far will the P wave move in five seconds?

Answers

Distance= speed x time
D=6.5x5
D=32.5km

A 2.75 kg sample of a substance occupies a volume of 250 cm³ . Find the density in g/cm³ and kg/m³

Answers