# A sports car of mass 1450 kg (including the driver) crosses

Get college assignment help at uniessay writers A sports car of mass 1450 kg (including the driver) crosses the rounded top of a hill (r = 87 m) at 24 m/s. A Determine the normal force exerted by the road on the car, the normal force exerted by the car on the 73-kg driver, and the car speed at which the normal force on the driver equals zero.

## A 96 kg person stands on a scale in an elevator.

A 96 kg person stands on a scale in an elevator. What is the apparent weight when the elevator is accelerating upward with and acceleration of 1.80 m/s^2?

## Initially, the translational rms speed of an atom of a monatomic

Initially, the translational rms speed of an atom of a monatomic ideal gas is 250 mls. The pressure and volume of the gas are each doubled while the number of moles of the gas is kept constant. What is the final translational rms speed of the atoms?

## A solid cylinder of 10cm diameter stating from rest rolls with

A solid cylinder of 10cm diameter stating from rest rolls with out slipping a 50cm vertical fall before coming to a horizontal level ground. Find the translational speed at the bottom of the fall where it is horizontal. Ignore the frictional losses and assume the mass of the cylinder is distributed uniformly.

## A highway curve with radius = 274 is to be banked

A highway curve with radius = 274 is to be banked so that a car traveling = 25.0 will not skid sideways even in the absence of friction. At what angle should the curve be banked?

## Laura, whose mass is 35 {rm kg}, jumps horizontally off a

Laura, whose mass is 35 {rm kg}, jumps horizontally off a 55 {rm kg} canoe at 1.5 {rm m/s} relative to the canoe. What is the canoe’s speed just after she jumps?

## 18.59 An automobile tire has a volume of 0.0150 m3 on

18.59 An automobile tire has a volume of 0.0150 m3 on a cold day when the temperature of the air in the tire is 50°C and atmospheric pressure is 1.02 atm. Under these conditions the gauge pressure is measured to be 1.70 atm (about 25 1b/ine2)A. fter the car is driven on the highway for 30 min, the temperature of the air in the tires has risen to 45.0°C and the volume to 0.0159 m3. What then is the gauge pressure?

## A worker drops a wrench from the top of a tower

A worker drops a wrench from the top of a tower 57.3 m tall. What is the velocity when the wrench strikes the ground? The acceleration of grav- ity is 9.81 m/s2. Answer in units of m/s.

## A 12.0 N force with a fixed orientation does work on

A 12.0 N force with a fixed orientation does work on a particle as the particle moves through displacement d= (2.00i – 4.00j 3.00k) m. What is the angle between the force and the displacement if the change in the particle’s kinetic energy is (a) 30.0 J and (b) –30.0 J?

## A steel ball is tossed into the ocean and comes to

A steel ball is tossed into the ocean and comes to rest at a depth of 2.2 km. Find its fractional change in volume, assuming the density of seawater is 1024 kg/m^3.

## What is the magnitude of the apparent weight of a 79

Get college assignment help at uniessay writers What is the magnitude of the apparent weight of a 79 astronaut 5200 from the center of the Earth’s Moon in a space vehicle moving at constant velocity?

## a golf ball with an initial speed of 128 m/s lands

a golf ball with an initial speed of 128 m/s lands exactly 187 m downrange on level course. Neglecting air resistance, what maximum projection angle would achieve this result?

## A cardinal (Richmondena cardinalis) of mass 4.10×10^−2 kg and a baseball

A cardinal (Richmondena cardinalis) of mass 4.10×10^−2 kg and a baseball of mass 0.144 kg have the same kinetic energy. What is the ratio of the cardinal’s magnitude pc of momentum to the magnitude pb of the baseball’s momentum?

## What is the magnitude of the apparent weight of a 83

What is the magnitude of the apparent weight of a 83 kg astronaut 3200 km from the center of the Earth’s Moon in a space vehicle accelerating toward the Moon at 3.8 m/s^2?

## A 2.6 block of wood sits on a table. A 3.0

A 2.6 block of wood sits on a table. A 3.0 bullet, fired horizontally at a speed of 470 , goes completely through the block, emerging at a speed of 220 .

## Two objects of masses m and 3m are moving towards each

Two objects of masses m and 3m are moving towards each other along the x-axis with the same initial speed of v. The object with mass m is travelling to the left, and the object with mass 3m is traveling to the right. They undergo an elastic glancing collision such that m is moving downward after the collision at right angles from its initial direction. (a) find the final speeds of the two objects (b) What is the angle at which the object with mass 3m is scattered?

## What is the magnitude of the apparent weight of a 66

What is the magnitude of the apparent weight of a 66 astronaut 4500 from the center of the Earth’s Moon in a space vehicle moving at constant velocity

## The coil shown in the figure has 2 turns, a cross-sectional

The coil shown in the figure has 2 turns, a cross-sectional area of 0.22m^2 , and a field (parallel to the axis of the coil) with a magnitude given by(6.9 2t^2) , where t is in s. What is the potential difference, , at t=3.3 s ?

## A particle moves along the x axis undet the influence of

A particle moves along the x axis undet the influence of a stationary object. the force exerted on the particle is given bu F=8x^3, where f is in newtons and x is in meters. if x=0 is taken to be the zero of potential energ, then the potential energy in joules is?

## Boxes A and B have masses of 12 kg and 4

Boxes A and B have masses of 12 kg and 4 kg, respectively. The two boxes are released from rest. Use conservation of energy to find the boxes speed when box B has fallen a distance of .5 m.

## A converging lens of focal length 7.93 cm is 16.6 cm

A converging lens of focal length 7.93 cm is 16.6 cm to the left of a diverging lens of focal length -6.00 cm. A coin is placed 12.6 cm to the left of the converging lens. Calculate the location of the coin’s final image.

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