# A race car starts from rest on a circular track of radius 578 m. The car’s speed Science Assignment Help

A race car starts from rest on a circular track of radius 578 m. The car’s speed Science Assignment Help. A race car starts from rest on a circular track of radius 578 m. The car’s speed Science Assignment Help.

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A race car starts from rest on a circular track of radius 578 m. The car’s speed increases at the constant rate of 0.740 m/s2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, find the following.

(a) the speed of the race car
m/s

(b) the distance traveled
m

( c) the elapsed time
s

A race car starts from rest on a circular track of radius 578 m. The car’s speed Science Assignment Help[supanova_question]

## A satellite has a mass of 106 kg and is located at 2.03 106 m above the surface Science Assignment Help

A satellite has a mass of 106 kg and is located at 2.03  106 m above the surface of Earth.

(a) What is the potential energy associated with the satellite at this location?
J

(b) What is the magnitude of the gravitational force on the satellite?
N

[supanova_question]

## A dentist’s drill starts from rest. After 2.60 s of constant angular acceleratio Science Assignment Help

A dentist’s drill starts from rest. After 2.60 s of constant angular acceleration it turns at a rate of 2.7  104 rev/min.

(a) Find the drill’s angular acceleration.

(b) Determine the angle (in radians) through which the drill rotates during this period.

[supanova_question]

## A race car starts from rest on a circular track of radius 578 m. The car’s speed Science Assignment Help

A race car starts from rest on a circular track of radius 578 m. The car’s speed increases at the constant rate of 0.740 m/s2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, find the following.

(a) the speed of the race car
m/s

(b) the distance traveled
m

( c) the elapsed time
s

[supanova_question]

## A railroad car of mass M moving at a speed v1 collides and couples with two coup Science Assignment Help

A railroad car of mass M moving at a speed v1 collides and couples with two coupled railroad cars, each of the same mass M and moving in the same direction at a speed v2.

(a) What is the speed vf of the three coupled cars after the collision in terms of v1 and v2?

 vf =

(b) How much kinetic energy is lost in the collision? Answer in terms of Mv1, and v2.

[supanova_question]

[supanova_question]

## A car initially traveling eastward turns north by traveling in a circular path a Science Assignment Help

A car initially traveling eastward turns north by traveling in a circular path at uniform speed as in the figure. The length of the arc ABC is 270 m, and the car completes the turn in 31.0 s.

(a) Determine the car’s speed.
m/s

(b) What is the magnitude and direction of the acceleration when the car is at point B?

 magnitude m/s2 direction ° counterclockwise from the +x-axis

A car initially traveling eastward turns north by traveling in a circular path a Science Assignment Help[supanova_question]

## A satellite has a mass of 106 kg and is located at 2.03 106 m above the surface Science Assignment Help

A satellite has a mass of 106 kg and is located at 2.03  106 m above the surface of Earth.

(a) What is the potential energy associated with the satellite at this location?
J

(b) What is the magnitude of the gravitational force on the satellite?
N

[supanova_question]

## thrower….. catcher……. Science Assignment Help

70.0-kg person throws a 0.0400-kg snowball forward with a ground speed of 33.0 m/s. A second person, with a mass of 60.0 kg, catches the snowball. Both people are on skates. The first person is initially moving forward with a speed of 2.20 m/s, and the second person is initially at rest. What are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and the ice.

thrower….. catcher…….

[supanova_question]

## A car initially traveling eastward turns north by traveling in a circular path a Engineering Assignment Help

A car initially traveling eastward turns north by traveling in a circular path at uniform speed as in the figure. The length of the arc ABC is 270 m, and the car completes the turn in 31.0 s.

(a) Determine the car’s speed.
m/s

(b) What is the magnitude and direction of the acceleration when the car is at point B?

 magnitude Your response differs from the correct answer by more than 10%. Double check your calculations. m/s2 direction ° counterclockwise from the +x-axis

[supanova_question]

## A dentist’s drill starts from rest. After 2.60 s of constant angular acceleratio Science Assignment Help

A dentist’s drill starts from rest. After 2.60 s of constant angular acceleration it turns at a rate of 2.7  104 rev/min.

(a) Find the drill’s angular acceleration.