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True [87]
3 years ago
12

A 2300 kg truck has put its front bumper against the rear bumper of a 2400 kg SUV to give it a push. With the engine at full pow

er and good tires on good pavement, the maximum forward force on the truck is 18,000 N.What is the maximum possible acceleration the truck can give the SUV?
Physics
1 answer:
Vitek1552 [10]3 years ago
3 0

Answer:

3.8 m/s^2

Explanation:

We can solve this problem by applying Newton's second law, which states that:

F=ma

where

F is the net force on an object

m is the mass of the object

a is its acceleration

In this problem, we have:

m = 2300 + 2400 = 4700 kg is the total mass of the truck+the SUV

F = 18,000 N is the force exerted by the engine (that must be used to accelerate both the truck and the SUV)

Therefore, the acceleration on the truck-SUV system is

a=\frac{F}{m}=\frac{18,000}{4700}=3.8 m/s^2

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Answer:

1. bending of light in gravitational fields.

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Explanation:

1 bending of light in gravitational fields, we can think of it like this:

by noting the change in position s of stars as they pass near the sun on the celetial sphere, so since the sun creates a gravitational field even the star thats not in our line of side(behind the sun) can be seen because its light is bent.

2. effects of gravitational redshift:

this says that if you are in the gravitational field, your clock moves slower when it is seen by a distant observer.

3. perihelion precission of mecury:

according to Newtonian physics a two body system consisting of a lone orbiting the spherical mass would trace out an ellipse with the center of mass of the system as the focus but mercury deviates from that precission. then according to Einstein, the change in orientation of the orbital ellipsewithin its orbital plane is the effect of gravitation being mediated by the curvature of space-time.

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4 years ago
Assuming both graduated cylinders are holding water at room temperature, which cylinder has more thermal energy?
natta225 [31]

Answer:

The correct option is;

The graduate cylinder with more water has more thermal energy because it is holding more water molecules

Explanation:

Given that the thermal energy of the system is the energy possessed by the system by virtue of the increased motion of the particles by virtue of a transfer  of heat, when the content of the system is heated

The thermal energy, Q is given by the following equation;

Q = Mass, m × The specific heat capacity, C × The change in temperature, ΔT

Given that the graduated cylinder with more water has more mass and therefore, more water molecules, than the cylinder with less water, the cylinder with more water has more thermal energy.

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Answer:

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